MANUFACTURING PROCESS II- TE Mechanical Engineering

MANUFACTURING PROCESS II- TE Mechanical Engineering

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Q.no 1. Cutting fluids mostly used for machining steel is…….
A : Distilled Water
B : Soluble oil
C : Hydraulic oil
D : Heavy oil
Q.no 2. The tool material best suited for machining of 0.2% Carbon steel at high speed (100-
300 m/min.) is
A : Co-WC
B : Diamond
C : HSS
D : CBN
Q.no 3. Which of the following is a not a surface finishing process?
A : Honing
B : Buffing
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C : Lapping
D : Turning
Q.no 4. Which of the following is not element of Jigs and fixtures
A : tool guiding frame and bushes
B : base and body or frame
C : cutter
D : indexing plates
Q.no 5. The jigs and fixtures reduces
A : unskilled labor
B : pre-machining operations like marking, measuring, laying out, etc.
C : manual
handling operations
D : set-up time
Q.no 6. Fixtures are used
A : for holding and guiding the tool in drilling, reaming or tapping operations
B : for holding the work in milling, grinding, planing or turning operations
C : to check the
accuracy
of workpiece
D : only guiding the tool
Q.no 7. The device which is used to remove workpiece from close-fitting locators, after the
workpiece has been removed is called as
A : remover
B : escaper
C : ejector
D : blocker

Q.no 8. The following is(are) the advantage(s) of cast jigs or fixtures
A : No heat treatments are required for the cast jigs and fixtures
B : If cast jigs or fixture drops down, they don’t get misaligned or de-shaped, although it may break
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C : It prevents the
occurrence
of tool chatter
in milling
D : All of the above
Q.no 9. Which of the following is not a locating device?
A : nesting
B : flathead
C : pins
D : strap
Q.no 10. Which of the following code is used to specify Spindle start forward / Clockwise
rotation in milling and drilling?
A : M12
B : M01
C : M15
D : M03
Q.no 11. The time (in minutes) for a drilling a hole is given by t= (depth of hole+
h)/Feed×RPM, where h is
A : length of the drill
B : drill diameter
C : flute length of the drill
D : cone height of the drill
Q.no 12. The operation which is not performed on a shaper machine is
A : machining horizontal surface
B : machining vertical surface
C : machining angular surface
D : Turning
Q.no 13. Twist drills are made of
A : High speed steel
B : Carbon steel
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C : Stainless steel
D : Either (1) or (2)
Q.no 14. End of program (Reset)
A : M33
B : M31
C : M32
D : M30
Q.no 15. Which of the following is not an application of EBM process?
A : Machining
B : Welding
C : Engraving
D : Surface Hardening
Q.no 16. Fixtures are not used in
A : Milling
B : Shaping
C : Turning
D : drilling
Q.no 17. In CNC programing, block of Information G indicates
A : Sequence command
B : Preparatory commandr
C : Miscellaneous command
D : Machine type
Q.no 18. The material which on machining produces chips with built
up edge is
A : Brittle material
B : Tough material
C : Hard material
D : Ductile material
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Q.no 19. Which of the following process is based on Faradays law of Electrolysis?
A : Electrochemical Machining
B : Abrasive Jet Machining
C : Ultrasonic Machining
D : Laser Beam Machining


Q.no 20. Jigs and fixtures are
A : machining tools
B : precision tools
C : both
D : none of the above
Q.no 21. The cutting speed for counter-boring should be _ that of drilling operation
A : equal to
B : less than
C : greater than
D : Not have any relation based on operation
Q.no 22. Which of the following code is used to specify Peck-Drilling Cycle in milling and
drilling?
A : G73
B : G76
C : G87
D : G83
Q.no 23. In drilling softer materials, the cutting speed is _
as compared to harder
materials
A : same
B : low
C : high
D : Very low
Q.no 24. The angle between side cutting edge and end cutting edge is called as
A : approach angle
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B : nose angle
C : side relief angle
D : end relief angle
Q.no 25. Which of the following code is used to specify feed per revolution in milling and
drilling?
A : G69
B : G10
C : G00
D : G95
Q.no 26. In which type of locator having depression /recess same as the shape of the job ?
A : Pin locator
B : Nesting locator
C : Solid surface
D : Adjustable locator
Q.no 27. A fixture does not
A : Holds the workpiece
B : Locate the workpiece
C : Guide the tool
D : All of the above
Q.no 28. Generally adjustable locators used to locate which surface ?
A : grinding
B : Rough
C : machined
D : superfinished
Q.no 29. Part-programming mistakes can be avoided in
A : NC (Numerical Control) machine tool
B : CNC (Computer Numerical Control) machine tool
C : Both a. and b
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D : Conventional machining
Q.no 30. Which of the following operation, we can’t perform on drilling machine?
A : reaming
B : tapping
C : lapping
D : Turning
Q.no 31. The jigs and fixtures can be constructed through
A : Casting
B : Fabrication
C : Welding
D : All of the above
Q.no 32. The device, fed to the control unit of NC machine tool which sends the position
command signals to sideway transmission elements of the machine, is called as
A : controller
B : tape
C : feedback unit
D : Leadscrew
Q.no 33. A device, in which a component is held and located for a specific operation and
bushes are integrated that guide the tool, is called as
A : fixture
B : jig
C : clamps
D : none of the above
Q.no 34. The following type of jig is used for machining in more than one plane
A : Template jig
B : Box type jig
C : indexing jig
D : Open type jig
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Q.no 35. Larger the shear plane length, power required for cutting the same
material will be
A : Larger
B : smaller
C : Same
D : Not affected
Q.no 36. Use of tail stock in cylindrical grinding machine is___________
A : To drive the
work piece
B : To give feed to
the wheel head
C : Speed of
grinding wheel
D : To support the
other end of the
work piece
Q.no 37. Which of the following specified grinding wheel will have
Silicon carbide abrasive?
A : Z 46 K 5 B 17
B : C 600 K 5 B 17
C : A 8 K 5 B 17
D : A 80 K 5 B 17
Q.no 38. Carbide and ceramic tips are used in
A : slab mill
B : face mill
C : fly mill
D : Gang Mill
Q.no 39. A point to point control system is suitable only for one of the following applications
A : Milling profile
B : Turning
C : Drilling
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D : Grinding
Q.no 40. Cemented carbide tool of straight Co-WC is not suitable for steel cutting, because
A : Steel has high hardness
B : Cutting of steel
generates very
high temperature
C : Steel contains Fe
which reacts with
C and promote
diffusive wear
D : Steel contains
Fe which reacts
with Co and
promote
abrasive wear
Q.no 41. The process of improving the cutting action of the grinding
wheel is called
A : Truing
B : Dressing
C : Facing
D : Clearing
Q.no 42. This type of jig is employed on multi-spindle machines
A : Index jig
B : Universal jig
C : Open type jig
D : Multi-station jig
Q.no 43. Feed control system is responsible for which action in ECM?
A : Giving feed to tool
B : Electrolyte supply
C : Power supply
D : Workpiece holding
Q.no 44. Which of the following specified grinding wheel will have
Aluminum oxide abrasive?
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A : Z 46 K 5 B 17
B : C 600 K 5 B 17
C : C 8 K 5 B 17
D : A 80 K 5 B 17
Q.no 45. How is material removed in Electro discharge machining?
A : Melt and evaporate
B : Corrode and break
C : Mechanical erosion takes place
D : Abrassive action.


Q.no 46. The angle formed by the leading edge of the land with a plane having the axis of the
drill, is called
A : helix or rake angle
B : point angle
C : chisel edge angle
D : lip clearance angle
Q.no 47. What is the material removal mechanism of Laser beam machining process?
A : Melt and evaporate
B : Electro chemical corrosion
C : Mechanical erosion of materials
D : Electro chemical dissolution
Q.no 48. The following holds the workpiece securely in a jig or fixture against the cutting
forces
A : Clamping device
B : Locating device
C : fixing devices
D : Guiding device
Q.no 49. Any number of equal divisions can be obtained on milling machine by
A : Direct Indexing
B : Simple Indexing
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C : Compound Indexing
D : Differential Indexing
Q.no 50. In NC (Numerical Control) machine tool, the position feedback package is connected
between
A : control unit and programmer
B : programmer and machine tool
C : control unit and machine tool
D : programmer and process planning
Q.no 51. The following type of jig is used to drill a series of equidistant hole along a circle
A : Plate type jig
B : Index jig
C : Open type jig
D : Pot type jig
Q.no 52. The following type of jig is used for machining in more than one plane
A : Template jig
B : Plate type jig
C : Box type jig
D : Open type jig
Q.no 53. As the abrasive flow rate increases, what happens to the volumetric removal rate in
AJM?
A : Increases
B : Decreases
C : Increase and then decrease
D : Decrease and then increase
Q.no 54. Which are the suitable hole circles from index plate 2 to index 69 divisions by
compound indexing
A : 21 and 23
B : 23 and 27
C : 23 and 29
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D : 23 and 31
Q.no 55. In a drilling operation using a twist drill, the lip angle is 120 degree (standard), the
spindle speed is 300 rpm, the feed is 0.2 mm/rev and the drill diameter is 10 mm,calculate
machining time to drill a hole of 30 mm long ?
A : 0.88 min
B : 0.54 min
C : 1.2 min
D : 3 min
Q.no 56. In an orthogonal machine test on a steel, rake angle 20 degrees, uncut chip thickness
is 0.1 mm,
cut chip thickness is 0.25 mm calculate shear angle approximately equals to
A : 23 Degrees
B : 33 Degrees
C : 43 Degrees
D : 13 Degrees
Q.no 57. The device which place the workpiece in the same position, in jig and fixture, cycle
after cycle is called as
A : placing device
B : locating device
C : Guiding device
D : fixing device
Q.no 58. In CNC program block, N002 G02 G91 X40 Z40….,
G91 refer to
A : Absolute dimension
B : Incremental dimension
C : Rapid Feed
D : Linear interpolation
Q.no 59. In Abrasive jet machining, work piece material of removed by which of the following
means?
A : Vaporization
B : Electro plating
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C : Mechanical abrasion
D : Corrosion
Q.no 60. A grinding wheel is said to be of
if it holds the
abrasive grains more securely
A : Soft grade
B : Medium grade
C : Hard grade
D : very soft grade


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Answer for Question No 1. is b
Answer for Question No 2. is d
Answer for Question No 3. is d
Answer for Question No 4. is c
Answer for Question No 5. is a
Answer for Question No 6. is b
Answer for Question No 7. is c
Answer for Question No 8. is d
Answer for Question No 9. is a
Answer for Question No 10. is d
Answer for Question No 11. is d
Answer for Question No 12. is d
Answer for Question No 13. is d
Answer for Question No 14. is d
Answer for Question No 15. is d
Answer for Question No 16. is d
Answer for Question No 17. is b
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Answer for Question No 18. is d
Answer for Question No 19. is a
Answer for Question No 20. is b
Answer for Question No 21. is c
Answer for Question No 22. is d
Answer for Question No 23. is c
Answer for Question No 24. is b
Answer for Question No 25. is d
Answer for Question No 26. is b
Answer for Question No 27. is c
Answer for Question No 28. is b
Answer for Question No 29. is b
Answer for Question No 30. is d
Answer for Question No 31. is d
Answer for Question No 32. is b
Answer for Question No 33. is b
Answer for Question No 34. is b
Answer for Question No 35. is a
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Answer for Question No 36. is d
Answer for Question No 37. is b
Answer for Question No 38. is b
Answer for Question No 39. is c
Answer for Question No 40. is c
Answer for Question No 41. is b
Answer for Question No 42. is d
Answer for Question No 43. is a
Answer for Question No 44. is d
Answer for Question No 45. is a
Answer for Question No 46. is a
Answer for Question No 47. is a
Answer for Question No 48. is a
Answer for Question No 49. is c
Answer for Question No 50. is c
Answer for Question No 51. is b
Answer for Question No 52. is c
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Answer for Question No 53. is c
Answer for Question No 54. is c
Answer for Question No 55. is b
Answer for Question No 56. is a
Answer for Question No 57. is b
Answer for Question No 58. is b
Answer for Question No 59. is c
Answer for Question No 60. is c
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Seat No –
Total number of questions : 60
11668
MANUFACTURING PROCESS II
Time : 1hr
Max Marks : 50
N.B


Q.no 1. The device which is used to remove workpiece from close-fitting locators, after the
workpiece has been removed is called as
A : remover
B : escaper
C : ejector
D : blocker
Q.no 2. The operation of machining several surfaces of a workpiece simultaneously is called
A : profile milling
B : gang milling
C : saw milling
D : helical milling
Q.no 3. Which type of pin used when tolerances are not too tight for reducing cost and time or
production.?
A : Doweled pin
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B : V pin
C : Nesting
D : None of this
Q.no 4. Jigs are not used in
A : Drilling
B : Milling
C : Reaming
D : Tapping
Q.no 5. The basic purposes of developing and using suitable jigs and fixtures are
A : to eliminate marking, positioning, alignments etc.
B : to eliminate maching process
C : to check the accuracy of workpiece
D : to resharpem the cutting tool
Q.no 6. When the metal is removed by erosion caused by rapidly recurring spark discharges
between the tool and work, the process is known as
A : Electrochemical machining
B : Electro-discharge machining
C : Ultrasonic machining
D : Plasma Machining
Q.no 7. Return to reference position command is
A : G28
B : G40
C : G41
D : G42
Q.no 8. The main purpose of a boring operation, as compared to drilling, is to
A : Drill a hole
B : Finish the drilled hole
C : Correct the hole
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D : Enlarge the existing hole
Q.no 9. Jigs and Fixtures are used for
A : Mass production
B : Identical parts production
C : both
D : Job Production
Q.no 10. Twist drills are made of
A : High speed steel
B : Carbon steel
C : Stainless steel
D : Either (1) or (2)
Q.no 11. Rough grinding process is commonly used for
A : removing
excess material
from casting
B : cutting materials
that are too
hard to be
machined by
other
conventional tools
C : producing surfaces
on parts to higher
dimensional accuracy
D : obtaining
finer finish
Q.no 12. The operation of making a cone-shaped enlargement of the end of a hole is known as
A : counter-sinking
B : counter-boring
C : trepanning
D : spot facing
Q.no 13. In which of the following machine, the work is usually rotated while the drill is fed
into work
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A : Sensitive drilling machine
B : Radial drilling machine
C : Gang drilling machine
D : Deep hole drilling machine
Q.no 14. __ is equal to half the diameter of the drill used.
A : feed
B : depth of cut
C : machining time
D : Spndle Speed
Q.no 15. What is broaching?
A : A machining process used for increasing the size of the existing hole
B : A machining process used for grinding hardened steel
C : A machining process used for making intricate holes accurately
D : A machining process for removal of a layer of material of desired width and depth
Q.no 16. With the use of Jigs and fixture
A : decreases electricity charges
B : less skills of labour required
C : increases electricity charges
D : high skills of labour required
Q.no 17. Which of the following code is used to cancel offset compensation for cutter radius?
A : G40
B : G02
C : G42
D : G00
Q.no 18. The method of grinding used to produce internal cylindrical
holes and tapers, is
A : Internal cylindrical grinding
B : Form grinding
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C : External cylindrical grinding
D : Surface grinding
Q.no 19. As the cutting speed increases, the tool cutting forces
A : decreases
B : remain constant
C : increases
D : first increases and then decreases
Q.no 20. With the use of Jigs and fixture total cost of production
A : Increases
B : Decreases
C : Remains same
D : Jigs are not used in any production process
Q.no 21. Which of the following code is used in programming in absolute coordinates?
A : G90
B : G32
C : G92
D : G01
Q.no 22. Surface grinding is done to produce
A : tapered surface
B : flat surface
C : internal cylindrical
holes
D : Threaded
surfaces
Q.no 23. Which of the following code will give circular interpolation in Counterclockwise
direction?
A : G00
B : G56
C : G69
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D : G03
Q.no 24. Reflectivity of the materials depends on which of the following factors in LBM?
A : Wave length
B : Properties of material
C : Surface finish
D : All of the mentioned
Q.no 25. Chip breakers are used to
A : Increase tool life
B : Remove chips from bed
C : Break the chips into short segments
D : To minimize heat generation
Q.no 26. This type of jig is employed on multi-spindle machines
A : Index jig
B : Universal jig
C : Open type jig
D : Multi-station jig
Q.no 27. Which type of mechanism is used in shaper machine?
A : Indexing mechanism
B : Four-bar chain mechanism
C : Quick return mechanism
D : Crank and Slider Mechanism
Q.no 28. The usual value of the helix angle of a drill is
A : 20°
B : 30°
C : 45°
D : 60°
Q.no 29. The jigs and fixtures can be constructed through
A : Casting
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B : Fabrication
C : Welding
D : All of the above
Q.no 30. Which of the following process has highest rate of metal removal
A : Electric Discharge Machining (EDM)
B : Electro-Chemical Machining (ECM)
C : Ultrasonic Machining (USM)
D : Laser Beam Machining (LBM)
Q.no 31. A twist drill is specified by its
A : Shank, material and diameter
B : Shank, lip angle and size of flute
C : Material, length of body and helix angle
D : Diameter only
Q.no 32. Number of the degree of freedom of a workpiece in space is equal to
A : 10
B : 12
C : 16
D : 20
Q.no 33. Which of the following represents the correct symbol of
vertified bond in a specification of grinding wheel?
A : V
B : R
C : B
D : S
Q.no 34. With the use of Jigs and fixture total cost of production
A : Decreases
B : Increases
C : Remains same
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D : not affected
Q.no 35. Which of the following is not correct about fixture?
A : It is used to hold the work
B : It is used to position the work the work
C : It does not guide cutting tool.
D : It assures high accuracy of parts
Q.no 36. The materials are added to cutting tools to increase their properties.
Match the following

  1. Tungsten a. Hardness
  2. Carbon b. Hot hardness
  3. Vanadium c. Wear resistance
    A : 1-b, 2-a, 3-c
    B : 1-c, 2-a, 3-b
    C : 1-b, 2-c, 3-a
    D : 1-a, 2-b, 3-c
    Q.no 37. Which type of locator is used to locate job by its internal surface/diameter ?
    A : Solid locators
    B : Internal locator
    C : Adjustable
    locators
    D : Equalizing locators
    Q.no 38. A grinding ratio of 200 implies that the
    A : grinding wheel wears 200 times the volume of the material removed
    B : grinding wheel wears 0.005 times the volume of the material removed
    C : aspect ratio of abrasive particles used in the grinding wheel is 200
    D : ratio of volume
    of abrasive particle to that of grinding wheel is 200
    Q.no 39. Which type of locator generally used to locate cylindrical job ?
    A : V- locator
    B : Nesting locator
    C : Pin locator
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    D : Internal locator
    Q.no 40. The point angle of a drill, for drilling stainless steel, is
    A : 90°
    B : 118°
    C : 135°
    D : 150°
    Q.no 41. The device, fed to the control unit of NC machine tool which sends the position
    command signals to sideway transmission elements of the machine, is called as
    A : controller
    B : tape
    C : feedback unit
    D : Leadscrew
    Q.no 42. Lapping is an operation of__________
    A : Making a cone-shaped enlargement of the end of a hole
    B : Smoothing and squaring the surface around a hole
    C : Sizing and finishing a small diameter hole
    D : Producing a hole by removing metal along the circumference of a hollow cutting tool
    Q.no 43. Consider the following actions:
  4. Mechanical abrasion
  5. Diffusion
  6. Plastic deformation
  7. Oxidation
    Which of the above are the causes of tool wear?
    A : 2 & 3
    B : 1 & 2
    C : 1, 2 & 4
    D : 1 & 3
    Q.no 44. NC contouring is example of
    A : Continuous path positioning
    B : Point-to-point positioning
    C : Absolute positionng
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    D : Incremental positioning
    Q.no 45. Feed control system is responsible for which action in ECM?
    A : Giving feed to tool
    B : Electrolyte supply
    C : Power supply
    D : Workpiece holding
    Q.no 46. Which of the following operation, we can’t perform on drilling machine?
    A : reaming
    B : tapping
    C : lapping
    D : Turning
    Q.no 47. Which of the following is basically a polishing operation?
    A : Soft grinding
    B : Lapping
    C : Honing
    D : Buffing
    Q.no 48. Which of the following statements about programming of NC machine is correct?
    A : Programming is only possible on cebtral server
    B : Programming can be entered on control panel and can be read from tape
    C : Modification of the programme on the control panel is not possible
    D : Entering the programme is only possible directly on the control panel
    Q.no 49. Which of the following process have the lowest metal
    removal rate?
    A : Drilling
    B : Reaming
    C : Milling
    D : Honing
    Q.no 50. A fixture does not
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    A : Holds the workpiece
    B : Locate the workpiece
    C : Guide the tool
    D : All of the above
    Q.no 51. Calculate the cutting speed of drilling operation when diameter of drill is 10 mm and
    rotational speed of drill is 200 r.p.m.
    A : 6.283 m/min
    B : 3.142 m/min
    C : 8.362 m/min
    D : 10.216 m/min
    Q.no 52. In Abrasive jet machining, what may be the size of the abrasive grains used?
    A : 10 – 40 μm
    B : 50 – 100 μm
    C : 100 – 150 μm
    D : 200 – 300 μm
    Q.no 53. In CNC program block, N002 G02 G91 X40 Z40….,
    G02 refer to
    A : Circular interpolation in counter clockwise direction
    B : Circular interpolation in clockwise direction
    C : Linear interpolation
    D : Rapid feed
    Q.no 54. The following material is commonly used for making locating and clamping devices
    A : High carbon steel
    B : Low carbon steel
    C : High speed steel
    D : Die steel
    Q.no 55. The following jig can be used for several different work pieces and operations
    A : Index jig
    B : Template jig
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    C : Universal jig
    D : Multi-station jig
    Q.no 56. Glazing in grinding wheels takes place when the
    A : Wheel is too hard or wheel revolves at a very high speed
    B : Wheel is too soft or wheel revolves at a very slow speed
    C : Wheel is too hard and wheel revolves at very slow speed
    D : Wheel is too soft and wheel revolves at a very high speed
    Q.no 57. Which are the suitable hole circles from index plate 2 to index 69 divisions by
    compound indexing
    A : 21 and 23
    B : 23 and 27
    C : 23 and 29
    D : 23 and 31
    Q.no 58. In Abrasive jet machining, work piece material of removed by which of the following
    means?
    A : Vaporization
    B : Electro plating
    C : Mechanical abrasion
    D : Corrosion
    Q.no 59. Restricts the movement a cylinder placed in a V- block for 3-2-1 principle ?
    A : 1 (Translational) 2 (Rotary)
    B : 2 (Translational) 1 (Rotary)
    C : 2 (Translational) 2 (Rotary)
    D : 1 (Translational) 3 (Rotary)
    Q.no 60. In CNC program block, N002 G02 G91 X40 Z40….,
    G91 refer to
    A : Absolute dimension
    B : Incremental dimension
    C : Rapid Feed
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    D : Linear interpolation
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    Answer for Question No 1. is c
    Answer for Question No 2. is b
    Answer for Question No 3. is a
    Answer for Question No 4. is b
    Answer for Question No 5. is a
    Answer for Question No 6. is b
    Answer for Question No 7. is a
    Answer for Question No 8. is d
    Answer for Question No 9. is c
    Answer for Question No 10. is d
    Answer for Question No 11. is a
    Answer for Question No 12. is a
    Answer for Question No 13. is d
    Answer for Question No 14. is b
    Answer for Question No 15. is d
    Answer for Question No 16. is b
    Answer for Question No 17. is a
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    Answer for Question No 18. is a
    Answer for Question No 19. is a
    Answer for Question No 20. is b
    Answer for Question No 21. is a
    Answer for Question No 22. is b
    Answer for Question No 23. is d
    Answer for Question No 24. is d
    Answer for Question No 25. is c
    Answer for Question No 26. is d
    Answer for Question No 27. is c
    Answer for Question No 28. is b
    Answer for Question No 29. is d
    Answer for Question No 30. is b
    Answer for Question No 31. is a
    Answer for Question No 32. is b
    Answer for Question No 33. is a
    Answer for Question No 34. is a
    Answer for Question No 35. is c
    25/12/2020 https://sppu.wheebox.com/WAC-3/openanswers.obj
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    Answer for Question No 36. is b
    Answer for Question No 37. is b
    Answer for Question No 38. is b
    Answer for Question No 39. is a
    Answer for Question No 40. is c
    Answer for Question No 41. is b
    Answer for Question No 42. is c
    Answer for Question No 43. is c
    Answer for Question No 44. is a
    Answer for Question No 45. is a
    Answer for Question No 46. is d
    Answer for Question No 47. is d
    Answer for Question No 48. is b
    Answer for Question No 49. is d
    Answer for Question No 50. is c
    Answer for Question No 51. is a
    Answer for Question No 52. is a
    25/12/2020 https://sppu.wheebox.com/WAC-3/openanswers.obj
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    Answer for Question No 53. is b
    Answer for Question No 54. is a
    Answer for Question No 55. is c
    Answer for Question No 56. is a
    Answer for Question No 57. is c
    Answer for Question No 58. is c
    Answer for Question No 59. is c
    Answer for Question No 60. is b
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    Seat No –
    Total number of questions : 60
    11668_ MANUFACTURING PROCESS II
    Time : 1hr
    Max Marks : 50
    N.B
    1) All questions are Multiple Choice Questions having single correct option.
    2) Attempt any 50 questions out of 60.
    3) Use of calculator is allowed.
    4) Each question carries 1 Mark.
    5) Specially abled students are allowed 20 minutes extra for examination.
    6) Do not use pencils to darken answer.
    7) Use only black/blue ball point pen to darken the appropriate circle.
    8) No change will be allowed once the answer is marked on OMR Sheet.
    9) Rough work shall not be done on OMR sheet or on question paper.
    10) Darken ONLY ONE CIRCLE for each answer.
    Q.no 1. Which of the following is un-conventional machining process?
    A : Grinding
    B : Milling
    C : Turning
    D : Electro chemical machining
    Q.no 2. In oblique cutting chips are in form of
    A : Long curl
    B : Flat spiral
    C : Brittle
    D : Short & thick
    Q.no 3. Fixtures are not used in
    A : Milling
    B : Shaping
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    C : Turning
    D : drilling
    Q.no 4. Which of the following code is used to specify Spindle start forward / Clockwise
    rotation in milling and drilling?
    A : M12
    B : M01
    C : M15
    D : M03
    Q.no 5. In metal cutting operation, maximum heat is generated in
    A : the shear zone
    B : the chip-tool interface zone
    C : the tool-work interface zone
    D : machined surface
    Q.no 6. The cutting speed for counter-boring should be _ that of drilling operation
    A : equal to
    B : less than
    C : greater than
    D : Not have any relation based on operation
    Q.no 7. The angle between side cutting edge and end cutting edge is called as
    A : approach angle
    B : nose angle
    C : side relief angle
    D : end relief angle
    Q.no 8. The jigs and fixtures reduces
    A : unskilled labor
    B : pre-machining operations like marking, measuring, laying out, etc.
    C : manual
    handling operations
    D : set-up time
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    Q.no 9. In case of tool changer for CNC machines ATC means
    A : Anti Tool changer
    B : Automatic Tool Changer
    C : Automatic Turret Changer
    D : Automatic Tool Command
    Q.no 10. Surface grinding is done to produce
    A : tapered surface
    B : flat surface
    C : internal cylindrical
    holes
    D : Threaded
    surfaces
    Q.no 11. Which of the following operation is performed to provide
    recess for bolt heads or nuts?
    A : Counterboring
    B : Spot Facing
    C : Tapping
    D : Countersinking
    Q.no 12. is equal to half the diameter of the drill used.
    A : feed
    B : depth of cut
    C : machining time
    D : Spndle Speed
    Q.no 13. In an orthogonal cutting, the depth of cut is halved and the
    feed rate is double. If the chip thickness ratio is unaffected
    with the changed cutting conditions, the actual chip thickness
    will be
    A : halved
    B : doubled
    C : independent
    D : unchanged
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    Q.no 14. The relation between tool life (T) and cutting speed (V) is
    VTn = Constant. In this relation, the value of n depends upon
    A : Work material
    B : Tool material
    C : Type of chip produced
    D : Working conditions
    Q.no 15. Which of the following does not come under the main components of ECM?
    A : Feed control system
    B : Work piece holding devices
    C : Electrolyte supply system
    D : Dielectric flushing
    Q.no 16. Which of the following code is used to specify Peck-Drilling Cycle in milling and
    drilling?
    A : G73
    B : G76
    C : G87
    D : G83
    Q.no 17. In Electron beam machining, workpiece is held in
    A : vacuum chamber
    B : dielectric medium
    C : electrolyte
    D : air
    Q.no 18. When cutting face of tool is 90° to the line
    of action of tool then it is known as
    A : Oblique cutting
    B : Orthogonal cutting
    C : face cutting
    D : inverse cutting
    Q.no 19. Which of the following is not element of Jigs and fixtures
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    A : tool guiding frame and bushes
    B : base and body or frame
    C : cutter
    D : indexing plates
    Q.no 20. What is broaching?
    A : A machining process used for increasing the size of the existing hole
    B : A machining process used for grinding hardened steel
    C : A machining process used for making intricate holes accurately
    D : A machining process for removal of a layer of material of desired width and depth
    Q.no 21. The code for Incremental programming is
    A : G90
    B : G91
    C : M 90
    D : M 91
    Q.no 22. Which of the following code is used in programming in absolute coordinates?
    A : G90
    B : G32
    C : G92
    D : G01
    Q.no 23. Continuous chips with built up edge are formed during
    machining of
    A : brittle metals
    B : ductile metals
    C : non metals
    D : hard metals
    Q.no 24. Work material tends to adhere or cold weld with the cutting edge in case of
    A : Continuous chips
    B : Discontinuous chips
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    C : Segmented chips
    D : Continuous chips with built up edges
    Q.no 25. In metal cutting operations, secondary deformation occurs at
    A : Chip-tool interface
    B : Below tool tip
    C : In uncut chip away from tool tip
    D : All of the above
    Q.no 26. Which of the following is a surface finishing operation?
    A : Drilling
    B : Lapping
    C : Milling
    D : Turning
    Q.no 27. Which of the following is basically a polishing operation?
    A : Soft grinding
    B : Lapping
    C : Honing
    D : Buffing
    Q.no 28. The tungsten filament cathode is heated to what temperatures in EBM?
    A : 1000 to 1500 ᵒC
    B : 1500 to 2000 ᵒC
    C : 2500 to 3000 ᵒC
    D : 3500 to 5000 ᵒC
    Q.no 29. How is material removed in Electro discharge machining?
    A : Melt and evaporate
    B : Corrode and break
    C : Mechanical erosion takes place
    D : Abrassive action
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    Q.no 30. It is desired to perform the operations like drilling, reaming, counter-boring etc. on a
    work piece. Which of the following machine will be used?
    A : Sensitive drilling machine
    B : Radial drilling machine
    C : Gang drilling machine
    D : Multiple spindle drilling machine
    Q.no 31. A twist drill is specified by its
    A : Shank, material and diameter
    B : Shank, lip angle and size of flute
    C : Material, length of body and helix angle
    D : Diameter only
    Q.no 32. Which of the following method is not used for holding tool in drilling machine?
    A : by a sleeve
    B : by chucks
    C : by a socket
    D : By tool holder
    Q.no 33. In which of the following methods, an electrolyte is used?
    A : Ultrasonic Machining
    B : Electrochemical Machining
    C : Abrasive Jet Machining
    D : Laser Beam Machining
    Q.no 34. Larger the rake angle, power requirement for cutting the same material is
    A : Larger
    B : smaller
    C : Same
    D : Not affected
    Q.no 35. In direct indexing, the operation may be performed in___

    A : Plain dividing head
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    B : universal dividing head
    C : both plain and universal dividing head
    D : Compound Dividing head
    Q.no 36. The following type of jig is used for machining in more than one plane
    A : Template jig
    B : Box type jig
    C : indexing jig
    D : Open type jig
    Q.no 37. The correct sequence of the following parameters in order of their maximum to
    minimum influence on tool life is
    A : Feed rate, depth of cut, cutting speed
    B : Depth of cut, cutting speed, feed rate
    C : Cutting speed, feed rate, depth of cut
    D : Feed rate, cutting speed, depth of cut
    Q.no 38. A grinding ratio of 200 implies that the
    A : grinding wheel wears 200 times the volume of the material removed
    B : grinding wheel wears 0.005 times the volume of the material removed
    C : aspect ratio of abrasive particles used in the grinding wheel is 200
    D : ratio of volume
    of abrasive particle to that of grinding wheel is 200
    Q.no 39. Which of the following is not the advantage of CNC machines?
    A : Higher flexibility
    B : Improved quality
    C : Reduced scrap rate
    D : Improved strength of the components
    Q.no 40. Which of the following represents the correct symbol of
    vertified bond in a specification of grinding wheel?
    A : V
    B : R
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    C : B
    D : S
    Q.no 41. In centreless grinding, work place centre will be
    A : Above the line joining the two wheel centres
    B : Below the line joining the two wheel centres
    C : On the line joining the two wheel centres
    D : At the intersection of the line joining the wheel centres with the work place pla
    Q.no 42. Larger the shear plane length, power required for cutting the same
    material will be
    A : Larger
    B : smaller
    C : Same
    D : Not affected
    Q.no 43. The material removal rate in grinding operation is small due to
    A : only a small
    portion of
    abrasives are
    involved in cutting
    B : positive rake angle
    C : zero rake angle
    D : material removal rate does not depend on the rake angle
    Q.no 44. Carbide and ceramic tips are used in
    A : slab mill
    B : face mill
    C : fly mill
    D : Gang Mill
    Q.no 45. Feed is measured in units of
    A : length/revolution
    B : degree/revolution
    C : length
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    D : velocity
    Q.no 46. Which of the following is not a function of electrolyte in ECM?
    A : It completes the circuit
    B : It helps in electrochemical reaction
    C : It carries away heat and waste product
    D : It provide non reactive environment
    Q.no 47. Part-programming mistakes can be avoided in
    A : NC (Numerical Control) machine tool
    B : CNC (Computer Numerical Control) machine tool
    C : Both a. and b
    D : Conventional machining
    Q.no 48. Which of the following process has the lowest cutting speed?
    A : Slotting
    B : Lapping
    C : Milling
    D : Reaming
    Q.no 49. If Larger the rake angle, Shear plane length is
    A : Shorter
    B : Larger
    C : Same
    D : Not affected
    Q.no 50. In drilling aluminium, a drill with
    A : zero helix angle is used
    B : low helix angle is used
    C : high helix angle is used
    D : any helix angle can be used
    Q.no 51. The following type of jig suits best for drilling of holes in hollow cylindrical
    components, with relatively smaller outside and inside diameters, such as bushes
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    A : Box type jig
    B : Open type jig
    C : Index jig
    D : Pot type jig
    Q.no 52. The following type of jig is used for machining in more than one plane
    A : Template jig
    B : Plate type jig
    C : Box type jig
    D : Open type jig
    Q.no 53. In a drilling operation using a twist drill, the lip angle is 120 degree (standard), the
    spindle speed is 300 rpm, the feed is 0.2 mm/rev and the drill diameter is 10 mm,calculate
    machining time to drill a hole of 30 mm long ?
    A : 0.88 min
    B : 0.54 min
    C : 1.2 min
    D : 3 min
    Q.no 54. Which of the following will be better to use for machining of
    soft work piece?
    A : V-bond
    B : R-bond
    C : Both V and R bond
    D : Anyother
    Q.no 55. In face milling,What is the cutting speed when main axis spindle speed is 350 rpm
    and the cutter diameter is 125 mm ?
    A : 137.4 m/min
    B : 142 m/min
    C : 150.2 m/min
    D : 130 m/min
    Q.no 56. The device which place the workpiece in the same position, in jig and fixture, cycle
    after cycle is called as
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    A : placing device
    B : locating device
    C : Guiding device
    D : fixing device
    Q.no 57. Which are the suitable hole circles to index 51 divisions by compound indexing
    A : 17 and 18
    B : 15 and 16
    C : 16 and 18
    D : 18 and 19
    Q.no 58. As the abrasive flow rate increases, what happens to the volumetric removal rate in
    AJM?
    A : Increases
    B : Decreases
    C : Increase and then decrease
    D : Decrease and then increase
    Q.no 59. In Abrasive jet machining, what may be the size of the abrasive grains used?
    A : 10 – 40 μm
    B : 50 – 100 μm
    C : 100 – 150 μm
    D : 200 – 300 μm
    Q.no 60. Which are the suitable hole circles to index 87 divisions by compound indexing
    A : 37 and 49
    B : 15 and 33
    C : 23 and 29
    D : 29 and 33
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    Answer for Question No 1. is d
    Answer for Question No 2. is a
    Answer for Question No 3. is d
    Answer for Question No 4. is d
    Answer for Question No 5. is a
    Answer for Question No 6. is c
    Answer for Question No 7. is b
    Answer for Question No 8. is a
    Answer for Question No 9. is b
    Answer for Question No 10. is b
    Answer for Question No 11. is a
    Answer for Question No 12. is b
    Answer for Question No 13. is b
    Answer for Question No 14. is b
    Answer for Question No 15. is d
    Answer for Question No 16. is d
    Answer for Question No 17. is a
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    Answer for Question No 18. is b
    Answer for Question No 19. is c
    Answer for Question No 20. is d
    Answer for Question No 21. is b
    Answer for Question No 22. is a
    Answer for Question No 23. is b
    Answer for Question No 24. is d
    Answer for Question No 25. is a
    Answer for Question No 26. is b
    Answer for Question No 27. is d
    Answer for Question No 28. is c
    Answer for Question No 29. is a
    Answer for Question No 30. is c
    Answer for Question No 31. is a
    Answer for Question No 32. is b
    Answer for Question No 33. is b
    Answer for Question No 34. is b
    Answer for Question No 35. is c
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    Answer for Question No 36. is b
    Answer for Question No 37. is c
    Answer for Question No 38. is b
    Answer for Question No 39. is d
    Answer for Question No 40. is a
    Answer for Question No 41. is a
    Answer for Question No 42. is a
    Answer for Question No 43. is a
    Answer for Question No 44. is b
    Answer for Question No 45. is a
    Answer for Question No 46. is d
    Answer for Question No 47. is b
    Answer for Question No 48. is b
    Answer for Question No 49. is a
    Answer for Question No 50. is c
    Answer for Question No 51. is d
    Answer for Question No 52. is c
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    Answer for Question No 53. is b
    Answer for Question No 54. is b
    Answer for Question No 55. is a
    Answer for Question No 56. is b
    Answer for Question No 57. is a
    Answer for Question No 58. is c
    Answer for Question No 59. is a
    Answer for Question No 60. is d
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    Seat No –
    Total number of questions : 60
    11668_ MANUFACTURING PROCESS II
    Time : 1hr
    Max Marks : 50
    N.B
    1) All questions are Multiple Choice Questions having single correct option.
    2) Attempt any 50 questions out of 60.
    3) Use of calculator is allowed.
    4) Each question carries 1 Mark.
    5) Specially abled students are allowed 20 minutes extra for examination.
    6) Do not use pencils to darken answer.
    7) Use only black/blue ball point pen to darken the appropriate circle.
    8) No change will be allowed once the answer is marked on OMR Sheet.
    9) Rough work shall not be done on OMR sheet or on question paper.
    10) Darken ONLY ONE CIRCLE for each answer.
    Q.no 1. Which the following code will produce dwell for a specified time?
    A : G18
    B : G65
    C : G04
    D : G45
    Q.no 2. Jigs are not used in
    A : Drilling
    B : Milling
    C : Reaming
    D : Tapping
    Q.no 3. Jigs and Fixtures are used for
    A : variable parts production
    B : Identical parts production
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    C : only in inspection
    D : sharpening of cutting tool
    Q.no 4. Which of the following code is used to specify Coolant ON in milling and drilling?
    A : M30
    B : M07
    C : M02
    D : M09
    Q.no 5. Fixtures are used
    A : for holding and guiding the tool in drilling, reaming or tapping operations
    B : for holding the work in milling, grinding, planing or turning operations
    C : to check the
    accuracy
    of workpiece
    D : only guiding the tool
    Q.no 6. M00 code in part programming stands forA : End of programme
    B : Programme stop
    C : End of tape
    D : Clamp slide
    Q.no 7. Which of the following is un-conventional machining process?
    A : Grinding
    B : Milling
    C : Turning
    D : Electro chemical machining
    Q.no 8. The cutting speed for counter-boring should be _
    that of drilling operation
    A : equal to
    B : less than
    C : greater than
    D : Not have any relation based on operation
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    Q.no 9. As the cutting speed increases, the tool cutting forces
    A : decreases
    B : remain constant
    C : increases
    D : first increases and then decreases
    Q.no 10. End of program (Reset)
    A : M33
    B : M31
    C : M32
    D : M30
    Q.no 11. Which operation can correct hole location, size or alignment of the hole which is
    already drilled in workpiece?
    A : Boring
    B : Rimming
    C : Both a. and b
    D : None of the above
    Q.no 12. Automatic tool change in CNC Machine code
    A : M05
    B : M06
    C : M07
    D : M09
    Q.no 13. Which of the following code is used in programming in incremental coordinates?
    A : G90
    B : G91
    C : G92
    D : G94
    Q.no 14. In case of tool changer for CNC machines ATC means
    A : Anti Tool changer
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    B : Automatic Tool Changer
    C : Automatic Turret Changer
    D : Automatic Tool Command
    Q.no 15. The code for Incremental programming is
    A : G90
    B : G91
    C : M 90
    D : M 91
    Q.no 16. Command G00 Means
    A : Feed motion in a circular path
    B : Rapid Motion
    C : Feed motion in Stright line
    D : Slow-motion
    Q.no 17. The main purpose of a boring operation, as compared to drilling, is to
    A : Drill a hole
    B : Finish the drilled hole
    C : Correct the hole
    D : Enlarge the existing hole
    Q.no 18. Which of the following is not an application of EBM process?
    A : Machining
    B : Welding
    C : Engraving
    D : Surface Hardening
    Q.no 19. Cutting fluids mostly used for machining steel is…….
    A : Distilled Water
    B : Soluble oil
    C : Hydraulic oil
    D : Heavy oil
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    Q.no 20. When cutting face of tool is 90° to the line
    of action of tool then it is known as
    A : Oblique cutting
    B : Orthogonal cutting
    C : face cutting
    D : inverse cutting
    Q.no 21. The time (in minutes) for a drilling a hole is given by t= (depth of hole+
    h)/Feed×RPM, where h is
    A : length of the drill
    B : drill diameter
    C : flute length of the drill
    D : cone height of the drill
    Q.no 22. What is broaching?
    A : A machining process used for increasing the size of the existing hole
    B : A machining process used for grinding hardened steel
    C : A machining process used for making intricate holes accurately
    D : A machining process for removal of a layer of material of desired width and depth
    Q.no 23. Chip breakers are used to
    A : Increase tool life
    B : Remove chips from bed
    C : Break the chips into short segments
    D : To minimize heat generation
    Q.no 24. When the metal is removed by erosion caused by rapidly recurring spark discharges
    between the tool and work, the process is known as
    A : Electrochemical machining
    B : Electro-discharge machining
    C : Ultrasonic machining
    D : Plasma Machining
    Q.no 25. The vector sum of cutting velocity and chip velocity is
    _ shear velocity.
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    A : equal to
    B : less than
    C : Double than
    D : more than
    Q.no 26. Point-to-point systems are used for
    A : Drilling
    B : parting
    C : grooving
    D : facing
    Q.no 27. Which of the following is a surface finishing operation?
    A : Drilling
    B : Lapping
    C : Milling
    D : Turning
    Q.no 28. This type of jig is employed on multi-spindle machines
    A : Index jig
    B : Universal jig
    C : Open type jig
    D : Multi-station jig
    Q.no 29. The effect of setting a boring tool above center height leads to
    A : Increase in the effective rake angle and a decrease in the effective clearance angle
    B : Increase in both effective rake angle and effective clearance angle
    C : Decrease in the effective rake angle and an increase in the effective clearance angle
    D : Decrease in both effective rake angle and effective clearance angle
    Q.no 30. The device, fed to the control unit of NC machine tool which sends the position
    command signals to sideway transmission elements of the machine, is called as
    A : controller
    B : tape
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    C : feedback unit
    D : Leadscrew
    Q.no 31. Give the locating and clamping principles ?
    A : Reduce operation time
    B : Increase Productivity
    C : Reduce the cost of production
    D : All of the above
    Q.no 32. Which of the following is not a function of electrolyte in ECM?
    A : It completes the circuit
    B : It helps in electrochemical reaction
    C : It carries away heat and waste product
    D : It provide non reactive environment
    Q.no 33. Several machine tool can be controlled by a central computer in
    A : CNC
    B : DNC
    C : NC
    D : CCNC
    Q.no 34. Which of the following symbol’s range of alphabet represent
    soft grain in grinding wheel?
    A : A – H
    B : I – P
    C : Q – T
    D : T – Z
    Q.no 35. Which of the following process have the lowest metal
    removal rate?
    A : Drilling
    B : Reaming
    C : Milling
    D : Honing
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    Q.no 36. The tungsten filament cathode is heated to what temperatures in EBM?
    A : 1000 to 1500 ᵒC
    B : 1500 to 2000 ᵒC
    C : 2500 to 3000 ᵒC
    D : 3500 to 5000 ᵒC
    Q.no 37. Which of the following statements about programming of NC machine is correct?
    A : Programming is only possible on cebtral server
    B : Programming can be entered on control panel and can be read from tape
    C : Modification of the programme on the control panel is not possible
    D : Entering the programme is only possible directly on the control panel
    Q.no 38. The following holds the workpiece securely in a jig or fixture against the cutting
    forces
    A : Clamping device
    B : Guiding device
    C : Locating device
    D : Indexing device
    Q.no 39. Which of the following processes is generally applied for dentistry work like to drill
    fine holes of particular shape in teeth?
    A : Electrical Discharge Machining (EDM)
    B : Electron Beam Machining (EBM)
    C : Laser Beam Machining (LBM)
    D : Ultrasonic Machining (USM)
    Q.no 40. Which of the following represents the correct symbol of
    vertified bond in a specification of grinding wheel?
    A : V
    B : R
    C : B
    D : S
    Q.no 41. The type of tool magazines used in CNC machines are
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    A : Drum
    B : Pallet
    C : Box
    D : Turret
    Q.no 42. CNC machines are not normally operated. They are controlled by means of a:
    A : Programme
    B : Operator
    C : Cam
    D : Pulg board system
    Q.no 43. A better machinable metal is one which gives
    A : lower chip-tool contact area and larger shear angle
    B : higher chip-tool contact area and smaller shear angle
    C : lower chip-tool contact area and smaller shear angle
    D : higher chip-tool contact area and larger shear angle
    Q.no 44. What are the values of material removal rates in EDM?
    A : 0.001 to 0.1 mm3/min
    B : 0.1 to 400 mm3/min
    C : 400 to 1000 mm3/min
    D : 1000 to 5000 mm3/min
    Q.no 45. In a shaper, the length of stroke is increased by
    A : Increasing the centre distance of bull gear and crank pin
    B : Decreasing the centre distance of bull gear and crank pin
    C : Increasing the length of the arm
    D : Decreasing the length of the slot in the slotted lever
    Q.no 46. Which of the following is not the advantage of CNC machines?
    A : Higher flexibility
    B : Improved quality
    C : Reduced scrap rate
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    D : Improved strength of the components
    Q.no 47. Number of the degree of freedom of a workpiece in space is equal to
    A : 10
    B : 12
    C : 16
    D : 20
    Q.no 48. Soft materials can not be economically ground due to
    A : High temperature involved
    B : Frequent wheel clogging
    C : Rapid wheel wear
    D : Low work piece stiffness
    Q.no 49. What is the material removal mechanism of Laser beam machining process?
    A : Melt and evaporate
    B : Electro chemical corrosion
    C : Mechanical erosion of materials
    D : Electro chemical dissolution
    Q.no 50. The usual value of the helix angle of a drill is
    A : 20°
    B : 30°
    C : 45°
    D : 60°
    Q.no 51. The method of grinding used to produce a straight or tapered
    surface on a workpiece, is
    A : Internal cylindrical grinding
    B : Form grinding
    C : External cylindrical grinding
    D : Surface grinding
    Q.no 52. Frequency of tool’s oscillation in USM ranges between?
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    A : 5-10 kHz
    B : 10-15 kHz
    C : 18-20 kHz
    D : 25-50 kHz
    Q.no 53. In centerless grinders, the regulating wheel is inclined at
    A : 0° to 8°
    B : 9° to 15°
    C : 16° to 20°
    D : 21° to 25°
    Q.no 54. In an orthogonal cutting operation, chip thickness ration is 0.61 and rake angle is 20
    degrees, then shear angle approximately equals to
    A : 23 Degrees
    B : 36 Degrees
    C : 43 Degrees
    D : 26 Degrees
    Q.no 55. The following type of jig suits best for drilling of holes in hollow cylindrical
    components, with relatively smaller outside and inside diameters, such as bushes
    A : Box type jig
    B : Open type jig
    C : Index jig
    D : Pot type jig
    Q.no 56. The device which place the workpiece in the same position, in jig and fixture, cycle
    after cycle is called as
    A : placing device
    B : locating device
    C : Guiding device
    D : fixing device
    Q.no 57. What is the general life of Tungsten carbide material nozzle in AJM?
    A : 1 – 8 hrs
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    B : 2 – 5 hrs
    C : 10 – 15 hrs
    D : 25 – 40 hrs
    Q.no 58. In drilling bakelite and fibrous plastics, the point angle of a drill is
    A : 90°
    B : 118°
    C : 135°
    D : 150°
    Q.no 59. The following type of jig is used to drill a series of equidistant hole along a circle
    A : Plate type jig
    B : Index jig
    C : Open type jig
    D : Pot type jig
    Q.no 60. Which are the suitable hole circles to index 51 divisions by compound indexing
    A : 17 and 18
    B : 15 and 16
    C : 16 and 18
    D : 18 and 19
    25/12/2020 https://sppu.wheebox.com/WAC-3/openanswers.obj
    https://sppu.wheebox.com/WAC-3/openanswers.obj 1/4
    Answer for Question No 1. is c
    Answer for Question No 2. is b
    Answer for Question No 3. is b
    Answer for Question No 4. is b
    Answer for Question No 5. is b
    Answer for Question No 6. is b
    Answer for Question No 7. is d
    Answer for Question No 8. is c
    Answer for Question No 9. is a
    Answer for Question No 10. is d
    Answer for Question No 11. is b
    Answer for Question No 12. is b
    Answer for Question No 13. is b
    Answer for Question No 14. is b
    Answer for Question No 15. is b
    Answer for Question No 16. is b
    Answer for Question No 17. is d
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    https://sppu.wheebox.com/WAC-3/openanswers.obj 2/4
    Answer for Question No 18. is d
    Answer for Question No 19. is b
    Answer for Question No 20. is b
    Answer for Question No 21. is d
    Answer for Question No 22. is d
    Answer for Question No 23. is c
    Answer for Question No 24. is b
    Answer for Question No 25. is a
    Answer for Question No 26. is a
    Answer for Question No 27. is b
    Answer for Question No 28. is d
    Answer for Question No 29. is a
    Answer for Question No 30. is b
    Answer for Question No 31. is d
    Answer for Question No 32. is d
    Answer for Question No 33. is b
    Answer for Question No 34. is a
    Answer for Question No 35. is d
    25/12/2020 https://sppu.wheebox.com/WAC-3/openanswers.obj
    https://sppu.wheebox.com/WAC-3/openanswers.obj 3/4
    Answer for Question No 36. is c
    Answer for Question No 37. is b
    Answer for Question No 38. is a
    Answer for Question No 39. is d
    Answer for Question No 40. is a
    Answer for Question No 41. is a
    Answer for Question No 42. is a
    Answer for Question No 43. is a
    Answer for Question No 44. is b
    Answer for Question No 45. is a
    Answer for Question No 46. is d
    Answer for Question No 47. is b
    Answer for Question No 48. is b
    Answer for Question No 49. is a
    Answer for Question No 50. is b
    Answer for Question No 51. is c
    Answer for Question No 52. is c
    25/12/2020 https://sppu.wheebox.com/WAC-3/openanswers.obj
    https://sppu.wheebox.com/WAC-3/openanswers.obj 4/4
    Answer for Question No 53. is a
    Answer for Question No 54. is b
    Answer for Question No 55. is d
    Answer for Question No 56. is b
    Answer for Question No 57. is c
    Answer for Question No 58. is a
    Answer for Question No 59. is b
    Answer for Question No 60. is a
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    Seat No –
    Total number of questions : 60
    11668 MANUFACTURING PROCESS II
    Time : 1hr
    Max Marks : 50
    N.B
    1) All questions are Multiple Choice Questions having single correct option.
    2) Attempt any 50 questions out of 60.
    3) Use of calculator is allowed.
    4) Each question carries 1 Mark.
    5) Specially abled students are allowed 20 minutes extra for examination.
    6) Do not use pencils to darken answer.
    7) Use only black/blue ball point pen to darken the appropriate circle.
    8) No change will be allowed once the answer is marked on OMR Sheet.
    9) Rough work shall not be done on OMR sheet or on question paper.
    10) Darken ONLY ONE CIRCLE for each answer.
    Q.no 1. The operation of making a cone-shaped enlargement of the end of a hole is known as
    A : counter-sinking
    B : counter-boring
    C : trepanning
    D : spot facing
    Q.no 2. The relation between the tool life (T) in minutes and cutting
    speed (V) in m/min is (where n = An exponent, which depends
    upon the tool and workpiece, and C = A constant)
    A : VnT = C
    B : VTn = C
    C : V/Tn = C
    D : Vn/T = C
    Q.no 3. The cutting speed for counter-boring should be _
    that of drilling operation
    A : equal to
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    B : less than
    C : greater than
    D : Not have any relation based on operation
    Q.no 4. A dynamo-meter is a device used for the measurement of
    A : Chip thickness ratio
    B : Forces during metal cutting
    C : Wear of the cutting tool
    D : Deflection of the cutting tool
    Q.no 5. Which of the following code is used to specify Coolant ON in milling and drilling?
    A : M30
    B : M07
    C : M02
    D : M09
    Q.no 6. Which of the following does not come under the main components of ECM?
    A : Feed control system
    B : Work piece holding devices
    C : Electrolyte supply system
    D : Dielectric flushing
    Q.no 7. Chip breakers are used to
    A : Increase tool life
    B : Remove chips from bed
    C : Break the chips into short segments
    D : To minimize heat generation
    Q.no 8. In American Standard Association (A S A) system, if the tool nomenclature is 8-6-5-5-
    10-15-2 mm, then the side rake angle will be
    A : 5°
    B : 6°
    C : 8°
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    D : 10°
    Q.no 9. The enlarging of an existing circular hole with a rotating single point tool is called
    A : boring
    B : drilling
    C : reaming
    D : internal turning
    Q.no 10. The device which is used to remove workpiece from close-fitting locators, after the
    workpiece has been removed is called as
    A : remover
    B : escaper
    C : ejector
    D : blocker
    Q.no 11. The operation of machining several surfaces of a workpiece simultaneously is called
    A : profile milling
    B : gang milling
    C : saw milling
    D : helical milling
    Q.no 12. The command in CNC machine for straight line
    A : G00
    B : G01
    C : G02
    D : G04
    Q.no 13. The operation which is not performed on a shaper machine is
    A : machining horizontal surface
    B : machining vertical surface
    C : machining angular surface
    D : Turning
    Q.no 14. The surface of the single point cutting tool on which the chips formed in cutting
    operation slide is called as
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    A : flank
    B : heel
    C : face
    D : shank
    Q.no 15. The basic purposes of developing and using suitable jigs and fixtures are
    A : to eliminate marking, positioning, alignments etc.
    B : to eliminate maching process
    C : to check the accuracy of workpiece
    D : to resharpem the cutting tool
    Q.no 16. In Electron beam machining, workpiece is held in
    A : vacuum chamber
    B : dielectric medium
    C : electrolyte
    D : air
    Q.no 17. What is broaching?
    A : A machining process used for increasing the size of the existing hole
    B : A machining process used for grinding hardened steel
    C : A machining process used for making intricate holes accurately
    D : A machining process for removal of a layer of material of desired width and depth
    Q.no 18. The thickness of layer material removed in one pass of workpiece under the cutter is
    called as
    A : single pass cut
    B : depth of cut
    C : width of cut
    D : face cut
    Q.no 19. Which of the following is un-conventional machining process?
    A : Grinding
    B : Milling
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    C : Turning
    D : Electro chemical machining
    Q.no 20. Continuous chips with built up edge are formed during
    machining of
    A : brittle metals
    B : ductile metals
    C : non metals
    D : hard metals
    Q.no 21. Which operation can correct hole location, size or alignment of the hole which is
    already drilled in workpiece?
    A : Boring
    B : Rimming
    C : Both a. and b
    D : None of the above
    Q.no 22. Fixtures are not used in
    A : Milling
    B : Shaping
    C : Turning
    D : drilling
    Q.no 23. The operation of producing grooves around the periphery of a cylindrical or conical
    workpiece is called
    A : profile milling
    B : gang milling
    C : saw milling
    D : helical milling
    Q.no 24. What happens to the material removal rate when reflectivity is higher in LBM?
    A : Will decrease
    B : Will increase
    C : Will enhance
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    D : Remains same
    Q.no 25. Which of the following is not a locating device?
    A : nesting
    B : flathead
    C : pins
    D : strap
    Q.no 26. Which of the following processes is generally applied for dentistry work like to drill
    fine holes of particular shape in teeth?
    A : Electrical Discharge Machining (EDM)
    B : Electron Beam Machining (EBM)
    C : Laser Beam Machining (LBM)
    D : Ultrasonic Machining (USM)
    Q.no 27. The materials are added to cutting tools to increase their properties.
    Match the following
  8. Tungsten a. Hardness
  9. Carbon b. Hot hardness
  10. Vanadium c. Wear resistance
    A : 1-b, 2-a, 3-c
    B : 1-c, 2-a, 3-b
    C : 1-b, 2-c, 3-a
    D : 1-a, 2-b, 3-c
    Q.no 28. With the use of Jigs and fixture total cost of production
    A : Decreases
    B : Increases
    C : Remains same
    D : not affected
    Q.no 29. In a shaper, the length of stroke is increased by
    A : Increasing the centre distance of bull gear and crank pin
    B : Decreasing the centre distance of bull gear and crank pin
    C : Increasing the length of the arm
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    D : Decreasing the length of the slot in the slotted lever
    Q.no 30. Feed control system is responsible for which action in ECM?
    A : Giving feed to tool
    B : Electrolyte supply
    C : Power supply
    D : Workpiece holding
    Q.no 31. Lapping is an operation of__________
    A : Making a cone-shaped enlargement of the end of a hole
    B : Smoothing and squaring the surface around a hole
    C : Sizing and finishing a small diameter hole
    D : Producing a hole by removing metal along the circumference of a hollow cutting tool
    Q.no 32. This type of jig is employed on multi-spindle machines
    A : Index jig
    B : Universal jig
    C : Open type jig
    D : Multi-station jig
    Q.no 33. Cemented carbide tool of straight Co-WC is not suitable for steel cutting, because
    A : Steel has high hardness
    B : Cutting of steel
    generates very
    high temperature
    C : Steel contains Fe
    which reacts with
    C and promote
    diffusive wear
    D : Steel contains
    Fe which reacts
    with Co and
    promote
    abrasive wear
    Q.no 34. Larger the rake angle, power requirement for cutting the same material is
    A : Larger
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    B : smaller
    C : Same
    D : Not affected
    Q.no 35. The machine tool, in which calculation and setting of the operating conditions like
    depth of cut, feed, speed are done during the machining by the control system itself, is called
    A : Computer Numerical Control System
    B : Direct Numerical Control System
    C : Machining Centre System
    D : Adaptive Control System
    Q.no 36. A better machinable metal is one which gives
    A : lower chip-tool contact area and larger shear angle
    B : higher chip-tool contact area and smaller shear angle
    C : lower chip-tool contact area and smaller shear angle
    D : higher chip-tool contact area and larger shear angle
    Q.no 37. What are the values of currents used in EBM process?
    A : 1 to 20 mA
    B : 20 to 100 mA
    C : 100 to 200 mA
    D : 200 to 400 mA
    Q.no 38. Which type of locator is used to locate job by its internal surface/diameter ?
    A : Solid locators
    B : Internal locator
    C : Adjustable
    locators
    D : Equalizing locators
    Q.no 39. In Super finishing operation
    A : The work rotates,
    the abrasive
    block reciprocates
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    B : The abrasive
    block rotates,
    the work reciprocates
    C : Both abrasive
    block and
    work rotates
    D : Both abrasive
    block and work
    reciprocates
    Q.no 40. Which of the following symbol’s range of alphabet represent
    soft grain in grinding wheel?
    A : A – H
    B : I – P
    C : Q – T
    D : T – Z
    Q.no 41. A tool used to withdraw a drill from the sleeve is called
    A : drill remover
    B : drill puller
    C : drift
    D : drill drawer
    Q.no 42. Larger the shear plane length, power required for cutting the same
    material will be
    A : Larger
    B : smaller
    C : Same
    D : Not affected
    Q.no 43. Give the locating and clamping principles ?
    A : Reduce operation time
    B : Increase Productivity
    C : Reduce the cost of production
    D : All of the above
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    Q.no 44. The correct sequence of the following parameters in order of their maximum to
    minimum influence on tool life is
    A : Feed rate, depth of cut, cutting speed
    B : Depth of cut, cutting speed, feed rate
    C : Cutting speed, feed rate, depth of cut
    D : Feed rate, cutting speed, depth of cut
    Q.no 45. Soft materials can not be economically ground due to
    A : High temperature involved
    B : Frequent wheel clogging
    C : Rapid wheel wear
    D : Low work piece stiffness
    Q.no 46. In Electro discharge machining, materials with low melting point have which type of
    material removal rate?
    A : Very low
    B : Low
    C : Medium
    D : High
    Q.no 47. Crack in grinding wheel is developed due to
    A : High temperature developed at the contact of the wheel face and work
    B : Grinding hard work
    C : Low speed of wheel
    D : High speed of whee
    Q.no 48. In machining operation, Uncut chip thickness t0= 0.8 mm and Chip thickness tc=1.2
    mm. The correct option for the chip thickness ratio (r) is
    A : 0.4
    B : 0.66
    C : 1.5
    D : 0.83
    Q.no 49. Part-programming mistakes can be avoided in
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    A : NC (Numerical Control) machine tool
    B : CNC (Computer Numerical Control) machine tool
    C : Both a. and b
    D : Conventional machining
    Q.no 50. Which of the following process has highest rate of metal removal
    A : Electric Discharge Machining (EDM)
    B : Electro-Chemical Machining (ECM)
    C : Ultrasonic Machining (USM)
    D : Laser Beam Machining (LBM)
    Q.no 51. In CNC program block, N002 G02 G91 X40 Z40….,
    G91 refer to
    A : Absolute dimension
    B : Incremental dimension
    C : Rapid Feed
    D : Linear interpolation
    Q.no 52. Frequency of tool’s oscillation in USM ranges between?
    A : 5-10 kHz
    B : 10-15 kHz
    C : 18-20 kHz
    D : 25-50 kHz
    Q.no 53. The method of grinding used to produce a straight or tapered
    surface on a workpiece, is
    A : Internal cylindrical grinding
    B : Form grinding
    C : External cylindrical grinding
    D : Surface grinding
    Q.no 54. Which are the suitable hole circles from index plate 2 to index 69 divisions by
    compound indexing
    A : 21 and 23
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    B : 23 and 27
    C : 23 and 29
    D : 23 and 31
    Q.no 55. Which of the following will be better to use for machining of
    soft work piece?
    A : V-bond
    B : R-bond
    C : Both V and R bond
    D : Anyother
    Q.no 56. In CNC program block, N002 G02 G91 X40 Z40….,
    G02 refer to
    A : Circular interpolation in counter clockwise direction
    B : Circular interpolation in clockwise direction
    C : Linear interpolation
    D : Rapid feed
    Q.no 57. In an orthogonal cutting operation, chip thickness ration is 0.61 and rake angle is 20
    degrees, then shear angle approximately equals to
    A : 23 Degrees
    B : 36 Degrees
    C : 43 Degrees
    D : 26 Degrees
    Q.no 58. In the Taylor’s tool life equation, VT^n = C, the value of n=0.5. The tool life has a life
    of 180 minutes at a cutting speed of 18 m/min. If the tool life is reduced to 45 minutes, then
    the cutting speed will be
    A : 9 m/min
    B : 18 m/min
    C : 36 m/min
    D : 72 m/min
    Q.no 59. In centerless grinders, the regulating wheel is inclined at
    A : 0° to 8°
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    B : 9° to 15°
    C : 16° to 20°
    D : 21° to 25°
    Q.no 60. Which are the suitable hole circles to index 51 divisions by compound indexing
    A : 17 and 18
    B : 15 and 16
    C : 16 and 18
    D : 18 and 19
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    Answer for Question No 1. is a
    Answer for Question No 2. is b
    Answer for Question No 3. is c
    Answer for Question No 4. is b
    Answer for Question No 5. is b
    Answer for Question No 6. is d
    Answer for Question No 7. is c
    Answer for Question No 8. is b
    Answer for Question No 9. is a
    Answer for Question No 10. is c
    Answer for Question No 11. is b
    Answer for Question No 12. is b
    Answer for Question No 13. is d
    Answer for Question No 14. is c
    Answer for Question No 15. is a
    Answer for Question No 16. is a
    Answer for Question No 17. is d
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    Answer for Question No 18. is b
    Answer for Question No 19. is d
    Answer for Question No 20. is b
    Answer for Question No 21. is b
    Answer for Question No 22. is d
    Answer for Question No 23. is d
    Answer for Question No 24. is a
    Answer for Question No 25. is a
    Answer for Question No 26. is d
    Answer for Question No 27. is b
    Answer for Question No 28. is a
    Answer for Question No 29. is a
    Answer for Question No 30. is a
    Answer for Question No 31. is c
    Answer for Question No 32. is d
    Answer for Question No 33. is c
    Answer for Question No 34. is b
    Answer for Question No 35. is d
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    Answer for Question No 36. is a
    Answer for Question No 37. is b
    Answer for Question No 38. is b
    Answer for Question No 39. is a
    Answer for Question No 40. is a
    Answer for Question No 41. is c
    Answer for Question No 42. is a
    Answer for Question No 43. is d
    Answer for Question No 44. is c
    Answer for Question No 45. is b
    Answer for Question No 46. is d
    Answer for Question No 47. is d
    Answer for Question No 48. is b
    Answer for Question No 49. is b
    Answer for Question No 50. is b
    Answer for Question No 51. is b
    Answer for Question No 52. is c
    25/12/2020 https://sppu.wheebox.com/WAC-3/openanswers.obj
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    Answer for Question No 53. is c
    Answer for Question No 54. is c
    Answer for Question No 55. is b
    Answer for Question No 56. is b
    Answer for Question No 57. is b
    Answer for Question No 58. is c
    Answer for Question No 59. is a
    Answer for Question No 60. is a
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    Seat No –
    Total number of questions : 60
    11668_ MANUFACTURING PROCESS II
    Time : 1hr
    Max Marks : 50
    N.B
    1) All questions are Multiple Choice Questions having single correct option.
    2) Attempt any 50 questions out of 60.
    3) Use of calculator is allowed.
    4) Each question carries 1 Mark.
    5) Specially abled students are allowed 20 minutes extra for examination.
    6) Do not use pencils to darken answer.
    7) Use only black/blue ball point pen to darken the appropriate circle.
    8) No change will be allowed once the answer is marked on OMR Sheet.
    9) Rough work shall not be done on OMR sheet or on question paper.
    10) Darken ONLY ONE CIRCLE for each answer.
    Q.no 1. Surface which face the workpiece is known as…… Of the
    tool.
    A : Flank
    B : Base
    C : Heel
    D : Referance
    Q.no 2. The following is(are) the function(s) of a jig
    A : Holding, guiding and locating
    B : only Guiding
    C : only Locating
    D : only holding
    Q.no 3. Which operation can correct hole location, size or alignment of the hole which is
    already drilled in workpiece?
    A : Boring
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    B : Rimming
    C : Both a. and b
    D : None of the above
    Q.no 4. A process which uses a multi-point cutting tool is
    A : Boring
    B : Hobbing
    C : turning
    D : Necking
    Q.no 5. Lead angle in the single point cutting tool is the angle between
    A : the end cutting edge and the normal to the tool shank
    B : . the portion of side shank immediately below the side cutting edge and the line perpendicular to
    the base of the tool
    C : the tool face and the parallel to the base of the tool
    D : side cutting edge and the side of the tool shank
    Q.no 6. Which of the following code is used to cancel offset compensation for cutter radius?
    A : G40
    B : G02
    C : G42
    D : G00
    Q.no 7. Which of the following code is used to specify Spindle start forward / Clockwise
    rotation in milling and drilling?
    A : M12
    B : M01
    C : M15
    D : M03
    Q.no 8. Rough grinding process is commonly used for
    A : removing
    excess material
    from casting
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    B : cutting materials
    that are too
    hard to be
    machined by
    other
    conventional tools
    C : producing surfaces
    on parts to higher
    dimensional accuracy
    D : obtaining
    finer finish
    Q.no 9. Chip breakers are used to
    A : Increase tool life
    B : Remove chips from bed
    C : Break the chips into short segments
    D : To minimize heat generation
    Q.no 10. Jigs and Fixtures are used for
    A : variable parts production
    B : Identical parts production
    C : only in inspection
    D : sharpening of cutting tool
    Q.no 11. The angle between side cutting edge and end cutting edge is called as
    A : approach angle
    B : nose angle
    C : side relief angle
    D : end relief angle
    Q.no 12. Which of the following material cannot be machined using electro chemical
    machining?
    A : Iron
    B : Aluminum
    C : Copper
    D : Wood
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    Q.no 13. The following is(are) the advantage(s) of cast jigs or fixtures
    A : No heat treatments are required for the cast jigs and fixtures
    B : If cast jigs or fixture drops down, they don’t get misaligned or de-shaped, although it may break
    C : It prevents the
    occurrence
    of tool chatter
    in milling
    D : All of the above
    Q.no 14. Which of the following is not a locating device?
    A : nesting
    B : flathead
    C : pins
    D : strap
    Q.no 15. The operation of producing grooves around the periphery of a cylindrical or conical
    workpiece is called
    A : profile milling
    B : gang milling
    C : saw milling
    D : helical milling
    Q.no 16. Jigs and fixtures are
    A : machining tools
    B : precision tools
    C : both
    D : none of the above
    Q.no 17. A dynamo-meter is a device used for the measurement of
    A : Chip thickness ratio
    B : Forces during metal cutting
    C : Wear of the cutting tool
    D : Deflection of the cutting tool
    Q.no 18. Which of the following is un-conventional machining process?
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    A : Grinding
    B : Milling
    C : Turning
    D : Electro chemical machining
    Q.no 19. In metal cutting operations, secondary deformation occurs at
    A : Chip-tool interface
    B : Below tool tip
    C : In uncut chip away from tool tip
    D : All of the above
    Q.no 20. Burnishing is a process__________.
    A : Cold working
    B : Hot working
    C : Press working
    D : Metal cutting
    Q.no 21. The tool material best suited for machining of 0.2% Carbon steel at high speed (100-
    300 m/min.) is
    A : Co-WC
    B : Diamond
    C : HSS
    D : CBN
    Q.no 22. The use of jigs and fixtures
    A : Facilitates deployment of less skilled labour for production
    B : Eliminates pre-machining operations like marking, measuring, laying out etc.
    C : reduced manual
    handling operation
    D : All of the above
    Q.no 23. In an orthogonal cutting, the depth of cut is halved and the
    feed rate is double. If the chip thickness ratio is unaffected
    with the changed cutting conditions, the actual chip thickness
    will be
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    A : halved
    B : doubled
    C : independent
    D : unchanged
    Q.no 24. The surface of the single point cutting tool on which the chips formed in cutting
    operation slide is called as
    A : flank
    B : heel
    C : face
    D : shank
    Q.no 25. The cutting speed for counter-boring should be _ that of drilling operation
    A : equal to
    B : less than
    C : greater than
    D : Not have any relation based on operation
    Q.no 26. Which of the following is not true for radial drill?
    A : it can work with jobs, which are odd shaped
    B : the tubular column is very thick and has small diameters
    C : drill is mounted on drilling spindle
    D : none of the mentioned
    Q.no 27. Number of the degree of freedom of a workpiece in space is equal to
    A : 10
    B : 12
    C : 16
    D : 20
    Q.no 28. The following holds the workpiece securely in a jig or fixture against the cutting
    forces
    A : Clamping device
    B : Guiding device
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    C : Locating device
    D : Indexing device
    Q.no 29. The following type of jig is used for machining in more than one plane
    A : Template jig
    B : Box type jig
    C : indexing jig
    D : Open type jig
    Q.no 30. Removing dull grains in order to make grinding wheel sharp
    is known as
    A : Loading
    B : Glazing
    C : Dressing
    D : Trueing
    Q.no 31. Point-to-point systems are used for
    A : Drilling
    B : parting
    C : grooving
    D : facing
    Q.no 32. Soft materials can not be economically ground due to
    A : High temperature involved
    B : Frequent wheel clogging
    C : Rapid wheel wear
    D : Low work piece stiffness
    Q.no 33. The correct sequence of the following parameters in order of their maximum to
    minimum influence on tool life is
    A : Feed rate, depth of cut, cutting speed
    B : Depth of cut, cutting speed, feed rate
    C : Cutting speed, feed rate, depth of cut
    D : Feed rate, cutting speed, depth of cut
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    Q.no 34. Cemented carbide tool of straight Co-WC is not suitable for steel cutting, because
    A : Steel has high hardness
    B : Cutting of steel
    generates very
    high temperature
    C : Steel contains Fe
    which reacts with
    C and promote
    diffusive wear
    D : Steel contains
    Fe which reacts
    with Co and
    promote
    abrasive wear
    Q.no 35. In NC (Numerical Control) machine tool, the position feedback package is connected
    between
    A : control unit and programmer
    B : programmer and machine tool
    C : control unit and machine tool
    D : programmer and process planning
    Q.no 36. The usual value of the helix angle of a drill is
    A : 20°
    B : 30°
    C : 45°
    D : 60°
    Q.no 37. Which of the following process has highest rate of metal removal
    A : Electric Discharge Machining (EDM)
    B : Electro-Chemical Machining (ECM)
    C : Ultrasonic Machining (USM)
    D : Laser Beam Machining (LBM)
    Q.no 38. Feed is measured in units of
    A : length/revolution
    B : degree/revolution
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    C : length
    D : velocity
    Q.no 39. Which type of locator is used to locate job by its internal surface/diameter ?
    A : Solid locators
    B : Internal locator
    C : Adjustable
    locators
    D : Equalizing locators
    Q.no 40. The material removal rate in grinding operation is small due to
    A : only a small
    portion of
    abrasives are
    involved in cutting
    B : positive rake angle
    C : zero rake angle
    D : material removal rate does not depend on the rake angle
    Q.no 41. How is material removed in Electro discharge machining?
    A : Melt and evaporate
    B : Corrode and break
    C : Mechanical erosion takes place
    D : Abrassive action
    Q.no 42. In _
    operation, the chip thickness is minimum at the beginning of the cut
    and it reaches to the maximum when the cut terminates
    A : conventional milling
    B : climb milling
    C : face milling
    D : end milling
    Q.no 43. Crack in grinding wheel is developed due to
    A : High temperature developed at the contact of the wheel face and work
    B : Grinding hard work
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    C : Low speed of wheel
    D : High speed of whee
    Q.no 44. The system which holds the workpiece against the cutting forces without causing any
    damage to it, is called ?
    A : Clamping
    B : Location
    C : indexing
    D : None of this
    Q.no 45. The machine tool, in which calculation and setting of the operating conditions like
    depth of cut, feed, speed are done during the machining by the control system itself, is called
    A : Computer Numerical Control System
    B : Direct Numerical Control System
    C : Machining Centre System
    D : Adaptive Control System
    Q.no 46. Which of the following method is not used for holding tool in drilling machine?
    A : by a sleeve
    B : by chucks
    C : by a socket
    D : By tool holder
    Q.no 47. 3-2-1 principle is also known as ?
    A : 6 point location
    B : Principle of holding
    C : x-x-z location of principle
    D : Principle of clamping
    Q.no 48. A better machinable metal is one which gives
    A : lower chip-tool contact area and larger shear angle
    B : higher chip-tool contact area and smaller shear angle
    C : lower chip-tool contact area and smaller shear angle
    D : higher chip-tool contact area and larger shear angle
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    Q.no 49. In Electro discharge machining, materials with low melting point have which type of
    material removal rate?
    A : Very low
    B : Low
    C : Medium
    D : High
    Q.no 50. Carbide and ceramic tips are used in
    A : slab mill
    B : face mill
    C : fly mill
    D : Gang Mill
    Q.no 51. Using the Taylor equation VT^n=c, calculate the percentage increase in tool life
    when the cutting speed is reduced is reduced by 50% (n=0.5 and c=400)
    A : 3
    B : 4
    C : 1
    D : 0.5
    Q.no 52. In AJM, surface roughness value will vary between which values?
    A : 0.01 – 0.10 μm
    B : 0.15 – 1.5 μm
    C : 2.0 – 5.0 μm
    D : 7.0 – 10.0 μm
    Q.no 53. In CNC program block, N002 G02 G91 X40 Z40….,
    G02 refer to
    A : Circular interpolation in counter clockwise direction
    B : Circular interpolation in clockwise direction
    C : Linear interpolation
    D : Rapid feed
    Q.no 54. In centerless grinders, the regulating wheel is inclined at
    25/12/2020 Page
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    A : 0° to 8°
    B : 9° to 15°
    C : 16° to 20°
    D : 21° to 25°
    Q.no 55. In face milling,What is the cutting speed when main axis spindle speed is 350 rpm
    and the cutter diameter is 125 mm ?
    A : 137.4 m/min
    B : 142 m/min
    C : 150.2 m/min
    D : 130 m/min
    Q.no 56. As the abrasive flow rate increases, what happens to the volumetric removal rate in
    AJM?
    A : Increases
    B : Decreases
    C : Increase and then decrease
    D : Decrease and then increase
    Q.no 57. What is the value of abrasive grain flow rate in Abrasive jet machining?
    A : 0.1 – 2 g/min
    B : 3 – 20 g/min
    C : 30 – 56 g/min
    D : 68 – 85 g/min
    Q.no 58. Calculate the cutting speed of drilling operation when diameter of drill is 10 mm and
    rotational speed of drill is 200 r.p.m.
    A : 6.283 m/min
    B : 3.142 m/min
    C : 8.362 m/min
    D : 10.216 m/min
    Q.no 59. If l=length of travel of the drill in mm, n=rpm of the drill, s= feed per revolution of
    the drill in mm. Then machining time can be given as___

    A : (ln)/s 25/12/2020 Page Page 13/13 B : (ls)/n
    C : l/(n*s)
    D : (1+n)/s
    Q.no 60. Which of the following will be better to use for machining of
    soft work piece?
    A : V-bond
    B : R-bond
    C : Both V and R bond
    D : Anyother
    25/12/2020 https://sppu.wheebox.com/WAC-3/openanswers.obj
    https://sppu.wheebox.com/WAC-3/openanswers.obj 1/4
    Answer for Question No 1. is a
    Answer for Question No 2. is d
    Answer for Question No 3. is b
    Answer for Question No 4. is b
    Answer for Question No 5. is d
    Answer for Question No 6. is a
    Answer for Question No 7. is d
    Answer for Question No 8. is a
    Answer for Question No 9. is c
    Answer for Question No 10. is b
    Answer for Question No 11. is b
    Answer for Question No 12. is d
    Answer for Question No 13. is d
    Answer for Question No 14. is a
    Answer for Question No 15. is d
    Answer for Question No 16. is b
    Answer for Question No 17. is b
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    https://sppu.wheebox.com/WAC-3/openanswers.obj 2/4
    Answer for Question No 18. is d
    Answer for Question No 19. is a
    Answer for Question No 20. is a
    Answer for Question No 21. is d
    Answer for Question No 22. is d
    Answer for Question No 23. is b
    Answer for Question No 24. is c
    Answer for Question No 25. is c
    Answer for Question No 26. is b
    Answer for Question No 27. is b
    Answer for Question No 28. is a
    Answer for Question No 29. is b
    Answer for Question No 30. is c
    Answer for Question No 31. is a
    Answer for Question No 32. is b
    Answer for Question No 33. is c
    Answer for Question No 34. is c
    Answer for Question No 35. is c
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    https://sppu.wheebox.com/WAC-3/openanswers.obj 3/4
    Answer for Question No 36. is b
    Answer for Question No 37. is b
    Answer for Question No 38. is a
    Answer for Question No 39. is b
    Answer for Question No 40. is a
    Answer for Question No 41. is a
    Answer for Question No 42. is a
    Answer for Question No 43. is d
    Answer for Question No 44. is a
    Answer for Question No 45. is d
    Answer for Question No 46. is b
    Answer for Question No 47. is a
    Answer for Question No 48. is a
    Answer for Question No 49. is d
    Answer for Question No 50. is b
    Answer for Question No 51. is b
    Answer for Question No 52. is b
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    https://sppu.wheebox.com/WAC-3/openanswers.obj 4/4
    Answer for Question No 53. is b
    Answer for Question No 54. is a
    Answer for Question No 55. is a
    Answer for Question No 56. is c
    Answer for Question No 57. is b
    Answer for Question No 58. is a
    Answer for Question No 59. is c
    Answer for Question No 60. is b
    25/12/2020 Page
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    Seat No –
    Total number of questions : 60
    11668_ MANUFACTURING PROCESS II
    Time : 1hr
    Max Marks : 50
    N.B
    1) All questions are Multiple Choice Questions having single correct option.
    2) Attempt any 50 questions out of 60.
    3) Use of calculator is allowed.
    4) Each question carries 1 Mark.
    5) Specially abled students are allowed 20 minutes extra for examination.
    6) Do not use pencils to darken answer.
    7) Use only black/blue ball point pen to darken the appropriate circle.
    8) No change will be allowed once the answer is marked on OMR Sheet.
    9) Rough work shall not be done on OMR sheet or on question paper.
    10) Darken ONLY ONE CIRCLE for each answer.
    Q.no 1. Which of the following code will give circular interpolation in Counterclockwise
    direction?
    A : G00
    B : G56
    C : G69
    D : G03
    Q.no 2. The process utilizing mainly thermal energy for removing material is
    A : Ultrasonic Machining
    B : Electrochemical Machining
    C : Abrasive Jet Machining
    D : Laser Beam Machining
    Q.no 3. With the use of Jigs and fixture total cost of production
    A : Increases
    B : Decreases
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    C : Remains same
    D : Jigs are not used in any production process
    Q.no 4. Command G00 Means
    A : Feed motion in a circular path
    B : Rapid Motion
    C : Feed motion in Stright line
    D : Slow-motion
    Q.no 5. _ is equal to half the diameter of the drill used. A : feed B : depth of cut C : machining time D : Spndle Speed Q.no 6. Which of the following code is used to specify Coolant ON in milling and drilling? A : M30 B : M07 C : M02 D : M09 Q.no 7. Automatic tool change in CNC Machine code A : M05 B : M06 C : M07 D : M09 Q.no 8. Which of the following meat is difficult to machined by Laser Beam Machining? A : Steel B : Alumninium C : Metal alloys D : Cast Iron 25/12/2020 Page Page 3/13 Q.no 9. The material which on machining produces chips with built up edge is A : Brittle material B : Tough material C : Hard material D : Ductile material Q.no 10. Which of the following operation is performed to provide recess for bolt heads or nuts? A : Counterboring B : Spot Facing C : Tapping D : Countersinking Q.no 11. Which of the following is un-conventional machining process? A : Grinding B : Milling C : Turning D : Electro chemical machining Q.no 12. Jigs and fixtures are A : machining tools B : precision tools C : both D : none of the above Q.no 13. The angle between side cutting edge and end cutting edge is called as A : approach angle B : nose angle C : side relief angle D : end relief angle Q.no 14. Tool compensation off command is A : G28 25/12/2020 Page Page 4/13 B : G40 C : G41 D : G42 Q.no 15. Which of the following code is used to specify Coolant OFF in milling and drilling? A : M30 B : M07 C : M02 D : M09 Q.no 16. The enlarging of an existing circular hole with a rotating single point tool is called A : boring B : drilling C : reaming D : internal turning Q.no 17. M00 code in part programming stands forA : End of programme B : Programme stop C : End of tape D : Clamp slide Q.no 18. In metal cutting operation, maximum heat is generated in A : the shear zone B : the chip-tool interface zone C : the tool-work interface zone D : machined surface Q.no 19. Rough grinding process is commonly used for A : removing excess material from casting B : cutting materials that are too hard to be 25/12/2020 Page Page 5/13 machined by other conventional tools C : producing surfaces on parts to higher dimensional accuracy D : obtaining finer finish Q.no 20. Continuous chips with built up edge are formed during machining of A : brittle metals B : ductile metals C : non metals D : hard metals Q.no 21. Which of the following does not come under the main components of ECM? A : Feed control system B : Work piece holding devices C : Electrolyte supply system D : Dielectric flushing Q.no 22. The thickness of layer material removed in one pass of workpiece under the cutter is called as A : single pass cut B : depth of cut C : width of cut D : face cut Q.no 23. Lead angle in the single point cutting tool is the angle between A : the end cutting edge and the normal to the tool shank B : . the portion of side shank immediately below the side cutting edge and the line perpendicular to the base of the tool C : the tool face and the parallel to the base of the tool D : side cutting edge and the side of the tool shank 25/12/2020 Page Page 6/13 Q.no 24. The vector sum of cutting velocity and chip velocity is ___ shear velocity.
    A : equal to
    B : less than
    C : Double than
    D : more than
    Q.no 25. The operation of making a cone-shaped enlargement of the end of a hole is known as
    A : counter-sinking
    B : counter-boring
    C : trepanning
    D : spot facing
    Q.no 26. In Super finishing operation
    A : The work rotates,
    the abrasive
    block reciprocates
    B : The abrasive
    block rotates,
    the work reciprocates
    C : Both abrasive
    block and
    work rotates
    D : Both abrasive
    block and work
    reciprocates
    Q.no 27. Which type of locator is used to locate job by its internal surface/diameter ?
    A : Solid locators
    B : Internal locator
    C : Adjustable
    locators
    D : Equalizing locators
    Q.no 28. Removing dull grains in order to make grinding wheel sharp
    is known as
    A : Loading
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    B : Glazing
    C : Dressing
    D : Trueing
    Q.no 29. What are the values of currents used in EBM process?
    A : 1 to 20 mA
    B : 20 to 100 mA
    C : 100 to 200 mA
    D : 200 to 400 mA
    Q.no 30. A tool used to withdraw a drill from the sleeve is called
    A : drill remover
    B : drill puller
    C : drift
    D : drill drawer
    Q.no 31. At high cutting speed, high temperature at tool-chip interface is caused by
  11. Heat generation rate increases with an increase in cutting speed
  12. Friction coefficient (μ) decreases with an increase in cutting speed
  13. The time required to transfer the heat decreases with an increase in cutting speed
  14. Localization of heat takes place with an increase in cutting speed
    A : 1,3 &4
    B : 1,2,3 &4
    C : 1,2,& 3
    D : 2,3 &4
    Q.no 32. Several machine tool can be controlled by a central computer in
    A : CNC
    B : DNC
    C : NC
    D : CCNC
    Q.no 33. If Larger the rake angle, Shear plane length is
    A : Shorter
    B : Larger
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    C : Same
    D : Not affected
    Q.no 34. The correct sequence of the following parameters in order of their maximum to
    minimum influence on tool life is
    A : Feed rate, depth of cut, cutting speed
    B : Depth of cut, cutting speed, feed rate
    C : Cutting speed, feed rate, depth of cut
    D : Feed rate, cutting speed, depth of cut
    Q.no 35. The effect of setting a boring tool above center height leads to
    A : Increase in the effective rake angle and a decrease in the effective clearance angle
    B : Increase in both effective rake angle and effective clearance angle
    C : Decrease in the effective rake angle and an increase in the effective clearance angle
    D : Decrease in both effective rake angle and effective clearance angle
    Q.no 36. The angle formed by the leading edge of the land with a plane having the axis of the
    drill, is called
    A : helix or rake angle
    B : point angle
    C : chisel edge angle
    D : lip clearance angle
    Q.no 37. Which type of locator generally used to locate cylindrical job ?
    A : V- locator
    B : Nesting locator
    C : Pin locator
    D : Internal locator
    Q.no 38. How is material removed in Electro discharge machining?
    A : Melt and evaporate
    B : Corrode and break
    C : Mechanical erosion takes place
    D : Abrassive action
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    Q.no 39. Carbide and ceramic tips are used in
    A : slab mill
    B : face mill
    C : fly mill
    D : Gang Mill
    Q.no 40. Which of the following is not correct about fixture?
    A : It is used to hold the work
    B : It is used to position the work the work
    C : It does not guide cutting tool.
    D : It assures high accuracy of parts
    Q.no 41. Point-to-point systems are used for
    A : Drilling
    B : parting
    C : grooving
    D : facing
    Q.no 42. The usual value of the point angle of a drill is
    A : 70°
    B : 100°
    C : 118°
    D : 130°
    Q.no 43. The system which holds the workpiece against the cutting forces without causing any
    damage to it, is called ?
    A : Clamping
    B : Location
    C : indexing
    D : None of this
    Q.no 44. It is desired to perform the operations like drilling, reaming, counter-boring etc. on a
    work piece. Which of the following machine will be used?
    A : Sensitive drilling machine
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    B : Radial drilling machine
    C : Gang drilling machine
    D : Multiple spindle drilling machine
    Q.no 45. In which of the following methods, an electrolyte is used?
    A : Ultrasonic Machining
    B : Electrochemical Machining
    C : Abrasive Jet Machining
    D : Laser Beam Machining
    Q.no 46. The following type of jig is used for machining in more than one plane
    A : Template jig
    B : Box type jig
    C : indexing jig
    D : Open type jig
    Q.no 47. A grinding ratio of 200 implies that the
    A : grinding wheel wears 200 times the volume of the material removed
    B : grinding wheel wears 0.005 times the volume of the material removed
    C : aspect ratio of abrasive particles used in the grinding wheel is 200
    D : ratio of volume
    of abrasive particle to that of grinding wheel is 200
    Q.no 48. The device which is used to remove workpiece from close-fitting locators, after the
    workpiece has been removed is called as
    A : escaper
    B : blocker
    C : remover
    D : ejector
    Q.no 49. NC contouring is example of
    A : Continuous path positioning
    B : Point-to-point positioning
    C : Absolute positionng
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    D : Incremental positioning
    Q.no 50. Feed control system is responsible for which action in ECM?
    A : Giving feed to tool
    B : Electrolyte supply
    C : Power supply
    D : Workpiece holding
    Q.no 51. Frequency of tool’s oscillation in USM ranges between?
    A : 5-10 kHz
    B : 10-15 kHz
    C : 18-20 kHz
    D : 25-50 kHz
    Q.no 52. In face milling,What is the cutting speed when main axis spindle speed is 350 rpm
    and the cutter diameter is 125 mm ?
    A : 137.4 m/min
    B : 142 m/min
    C : 150.2 m/min
    D : 130 m/min
    Q.no 53. In Abrasive jet machining, what may be the size of the abrasive grains used?
    A : 10 – 40 μm
    B : 50 – 100 μm
    C : 100 – 150 μm
    D : 200 – 300 μm
    Q.no 54. In AJM, surface roughness value will vary between which values?
    A : 0.01 – 0.10 μm
    B : 0.15 – 1.5 μm
    C : 2.0 – 5.0 μm
    D : 7.0 – 10.0 μm
    Q.no 55. In an orthogonal cutting operation, chip thickness ration is 0.61 and rake angle is 20
    degrees, then shear angle approximately equals to
    25/12/2020 Page
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    A : 23 Degrees
    B : 36 Degrees
    C : 43 Degrees
    D : 26 Degrees
    Q.no 56. In an orthogonal machine test on a steel, rake angle 20 degrees, uncut chip thickness
    is 0.1 mm,
    cut chip thickness is 0.25 mm calculate shear angle approximately equals to
    A : 23 Degrees
    B : 33 Degrees
    C : 43 Degrees
    D : 13 Degrees
    Q.no 57. Which are the suitable hole circles from index plate 2 to index 69 divisions by
    compound indexing
    A : 21 and 23
    B : 23 and 27
    C : 23 and 29
    D : 23 and 31
    Q.no 58. In which process the material is removed due to the action of abrasive grains?
    A : Electron Beam Machining (EBM)
    B : Ultrasonic Machining (USM)
    C : Laser Beam Machining (LBM)
    D : Electrical Discharge Machining (EDM)
    Q.no 59. The following type of jig suits best for drilling of holes in hollow cylindrical
    components, with relatively smaller outside and inside diameters, such as bushes
    A : Box type jig
    B : Open type jig
    C : Index jig
    D : Pot type jig
    Q.no 60. Calculate the cutting speed of drilling operation when diameter of drill is 10 mm and
    rotational speed of drill is 200 r.p.m.
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    A : 6.283 m/min
    B : 3.142 m/min
    C : 8.362 m/min
    D : 10.216 m/min
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    https://sppu.wheebox.com/WAC-3/openanswers.obj 1/4
    Answer for Question No 1. is d
    Answer for Question No 2. is d
    Answer for Question No 3. is b
    Answer for Question No 4. is b
    Answer for Question No 5. is b
    Answer for Question No 6. is b
    Answer for Question No 7. is b
    Answer for Question No 8. is b
    Answer for Question No 9. is d
    Answer for Question No 10. is a
    Answer for Question No 11. is d
    Answer for Question No 12. is b
    Answer for Question No 13. is b
    Answer for Question No 14. is b
    Answer for Question No 15. is d
    Answer for Question No 16. is a
    Answer for Question No 17. is b
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    https://sppu.wheebox.com/WAC-3/openanswers.obj 2/4
    Answer for Question No 18. is a
    Answer for Question No 19. is a
    Answer for Question No 20. is b
    Answer for Question No 21. is d
    Answer for Question No 22. is b
    Answer for Question No 23. is d
    Answer for Question No 24. is a
    Answer for Question No 25. is a
    Answer for Question No 26. is a
    Answer for Question No 27. is b
    Answer for Question No 28. is c
    Answer for Question No 29. is b
    Answer for Question No 30. is c
    Answer for Question No 31. is a
    Answer for Question No 32. is b
    Answer for Question No 33. is a
    Answer for Question No 34. is c
    Answer for Question No 35. is a
    25/12/2020 https://sppu.wheebox.com/WAC-3/openanswers.obj
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    Answer for Question No 36. is a
    Answer for Question No 37. is a
    Answer for Question No 38. is a
    Answer for Question No 39. is b
    Answer for Question No 40. is c
    Answer for Question No 41. is a
    Answer for Question No 42. is c
    Answer for Question No 43. is a
    Answer for Question No 44. is c
    Answer for Question No 45. is b
    Answer for Question No 46. is b
    Answer for Question No 47. is b
    Answer for Question No 48. is d
    Answer for Question No 49. is a
    Answer for Question No 50. is a
    Answer for Question No 51. is c
    Answer for Question No 52. is a
    25/12/2020 https://sppu.wheebox.com/WAC-3/openanswers.obj
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    Answer for Question No 53. is a
    Answer for Question No 54. is b
    Answer for Question No 55. is b
    Answer for Question No 56. is a
    Answer for Question No 57. is c
    Answer for Question No 58. is b
    Answer for Question No 59. is d
    Answer for Question No 60. is a
    25/12/2020 Page
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    Seat No –
    Total number of questions : 60
    11668_ MANUFACTURING PROCESS II
    Time : 1hr
    Max Marks : 50
    N.B
    1) All questions are Multiple Choice Questions having single correct option.
    2) Attempt any 50 questions out of 60.
    3) Use of calculator is allowed.
    4) Each question carries 1 Mark.
    5) Specially abled students are allowed 20 minutes extra for examination.
    6) Do not use pencils to darken answer.
    7) Use only black/blue ball point pen to darken the appropriate circle.
    8) No change will be allowed once the answer is marked on OMR Sheet.
    9) Rough work shall not be done on OMR sheet or on question paper.
    10) Darken ONLY ONE CIRCLE for each answer.
    Q.no 1. Jigs are not used in
    A : Drilling
    B : Milling
    C : Reaming
    D : Tapping
    Q.no 2. The tool material best suited for machining of 0.2% Carbon steel at high speed (100-
    300 m/min.) is
    A : Co-WC
    B : Diamond
    C : HSS
    D : CBN
    Q.no 3. With the same tool life, the maximum material per minute is
    removed by
    A : Increasing the cutting speed
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    B : Decreasing the cutting speed
    C : Increasing the feed rate
    D : Increasing the depth of cut
    Q.no 4. The process utilizing mainly thermal energy for removing material is
    A : Ultrasonic Machining
    B : Electrochemical Machining
    C : Abrasive Jet Machining
    D : Laser Beam Machining
    Q.no 5. Which of the following code is used to specify feed per minute in milling and drilling?
    A : G69
    B : G10
    C : G00
    D : G94
    Q.no 6. What happens to the material removal rate when reflectivity is higher in LBM?
    A : Will decrease
    B : Will increase
    C : Will enhance
    D : Remains same
    Q.no 7. Which of the following material cannot be machined using electro chemical
    machining?
    A : Iron
    B : Aluminum
    C : Copper
    D : Wood
    Q.no 8. Which of the following is not a locating device?
    A : nesting
    B : flathead
    C : pins
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    D : strap
    Q.no 9. The use of jigs and fixtures
    A : Facilitates deployment of less skilled labour for production
    B : Eliminates pre-machining operations like marking, measuring, laying out etc.
    C : reduced manual
    handling operation
    D : All of the above
    Q.no 10. Burnishing is a process_______
    .
    A : Cold working
    B : Hot working
    C : Press working
    D : Metal cutting
    Q.no 11. The device which is used to remove workpiece from close-fitting locators, after the
    workpiece has been removed is called as
    A : remover
    B : escaper
    C : ejector
    D : blocker
    Q.no 12. The method of grinding used to produce internal cylindrical
    holes and tapers, is
    A : Internal cylindrical grinding
    B : Form grinding
    C : External cylindrical grinding
    D : Surface grinding
    Q.no 13. The relation between tool life (T) and cutting speed (V) is
    VTn = Constant. In this relation, the value of n depends upon
    A : Work material
    B : Tool material
    C : Type of chip produced
    D : Working conditions
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    Q.no 14. Which of the following code is used in programming in absolute coordinates?
    A : G90
    B : G32
    C : G92
    D : G01
    Q.no 15. The following is(are) the function(s) of a jig
    A : Holding, guiding and locating
    B : only Guiding
    C : only Locating
    D : only holding
    Q.no 16. Return to reference position command is
    A : G28
    B : G40
    C : G41
    D : G42
    Q.no 17. Automatic tool change in CNC Machine code
    A : M05
    B : M06
    C : M07
    D : M09
    Q.no 18. In order to achieve a specific surface finish
    in single point turning the most important factor to be controlled is
    A : Depth of cut
    B : Cutting speed
    C : Feed
    D : Tool rake angle
    Q.no 19. Reflectivity of the materials depends on which of the following factors in LBM?
    A : Wave length
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    B : Properties of material
    C : Surface finish
    D : All of the mentioned
    Q.no 20. Fixtures are not used in
    A : Milling
    B : Shaping
    C : Turning
    D : drilling
    Q.no 21. Which of the following code is used to specify Tool Change in milling and drilling?
    A : M00
    B : M06
    C : M05
    D : M18
    Q.no 22. Diffusion wear is caused because of
    I. High temp. near tool-chip interface
    II. Compositional gradient across the tool-chip interface
    A : Both (I) and (II)
    B : Only (I)
    C : Only (II)
    D : Neither (I) nor (II)
    Q.no 23. When the metal is removed by erosion caused by rapidly recurring spark discharges
    between the tool and work, the process is known as
    A : Electrochemical machining
    B : Electro-discharge machining
    C : Ultrasonic machining
    D : Plasma Machining
    Q.no 24. The operation of producing grooves around the periphery of a cylindrical or conical
    workpiece is called
    A : profile milling
    B : gang milling
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    C : saw milling
    D : helical milling
    Q.no 25. For CNC machining skilled part programmers are needed.
    A : true
    B : false
    C : SOMETIME
    D : NOT AT ALL
    Q.no 26. In centreless grinding, work place centre will be
    A : Above the line joining the two wheel centres
    B : Below the line joining the two wheel centres
    C : On the line joining the two wheel centres
    D : At the intersection of the line joining the wheel centres with the work place pla
    Q.no 27. Which of the following grinding machine will give a better
    result for rough machining?
    A : Fine grain
    B : Very fine grain
    C : Coarse grain
    D : Ultra fine grain
    Q.no 28. Give the locating and clamping principles ?
    A : Reduce operation time
    B : Increase Productivity
    C : Reduce the cost of production
    D : All of the above
    Q.no 29. In Electro discharge machining, materials with low melting point have which type of
    material removal rate?
    A : Very low
    B : Low
    C : Medium
    D : High
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    Q.no 30. Soft materials can not be economically ground due to
    A : High temperature involved
    B : Frequent wheel clogging
    C : Rapid wheel wear
    D : Low work piece stiffness
    Q.no 31. What are the values of currents used in EBM process?
    A : 1 to 20 mA
    B : 20 to 100 mA
    C : 100 to 200 mA
    D : 200 to 400 mA
    Q.no 32. It is desired to perform the operations like drilling, reaming, counter-boring etc. on a
    work piece. Which of the following machine will be used?
    A : Sensitive drilling machine
    B : Radial drilling machine
    C : Gang drilling machine
    D : Multiple spindle drilling machine
    Q.no 33. The tool angle which helps in reducing the rubbing of the machined surface to the
    flank of the tool is
    A : Rake angle
    B : Cutting edge angle
    C : Clearance angle
    D : Nose radius
    Q.no 34. In a shaper, the length of stroke is increased by
    A : Increasing the centre distance of bull gear and crank pin
    B : Decreasing the centre distance of bull gear and crank pin
    C : Increasing the length of the arm
    D : Decreasing the length of the slot in the slotted lever
    Q.no 35. A tool used to withdraw a drill from the sleeve is called
    A : drill remover
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    B : drill puller
    C : drift
    D : drill drawer
    Q.no 36. Which of the following statements about programming of NC machine is correct?
    A : Programming is only possible on cebtral server
    B : Programming can be entered on control panel and can be read from tape
    C : Modification of the programme on the control panel is not possible
    D : Entering the programme is only possible directly on the control panel
    Q.no 37. Which of the following process have the lowest metal
    removal rate?
    A : Drilling
    B : Reaming
    C : Milling
    D : Honing
    Q.no 38. The material removal rate in grinding operation is small due to
    A : only a small
    portion of
    abrasives are
    involved in cutting
    B : positive rake angle
    C : zero rake angle
    D : material removal rate does not depend on the rake angle
    Q.no 39. Consider the following statements: Chipping of a cutting tool is due to
  15. Tool material being too brittle
  16. Hot hardness of the tool material
  17. High positive rake angle of the tool
    Which of these statements are correct?
    A : 1, 2 & 3
    B : 1 & 3
    C : 2 & 3
    D : 1 & 2
    Q.no 40. The usual value of the helix angle of a drill is
    25/12/2020 Page
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    A : 20°
    B : 30°
    C : 45°
    D : 60°
    Q.no 41. Which of the following is a surface finishing operation?
    A : Drilling
    B : Lapping
    C : Milling
    D : Turning
    Q.no 42. Which of the following operation, we can’t perform on drilling machine?
    A : reaming
    B : tapping
    C : lapping
    D : Turning
    Q.no 43. The point angle of a drill, for drilling stainless steel, is
    A : 90°
    B : 118°
    C : 135°
    D : 150°
    Q.no 44. In CNC machine tool, the part program entered into the computer memory
    A : can be used only once
    B : can be used again and again
    C : can be used again but it has to be modified every time
    D : cannot say
    Q.no 45. In NC (Numerical Control) machine tool, the position feedback package is connected
    between
    A : control unit and programmer
    B : programmer and machine tool
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    C : control unit and machine tool
    D : programmer and process planning
    Q.no 46. Which type of mechanism is used in shaper machine?
    A : Indexing mechanism
    B : Four-bar chain mechanism
    C : Quick return mechanism
    D : Crank and Slider Mechanism
    Q.no 47. Which of the following is basically a polishing operation?
    A : Soft grinding
    B : Lapping
    C : Honing
    D : Buffing
    Q.no 48. With the use of Jigs and fixture total cost of production
    A : Decreases
    B : Increases
    C : Remains same
    D : not affected
    Q.no 49. The device which is used to remove workpiece from close-fitting locators, after the
    workpiece has been removed is called as
    A : escaper
    B : blocker
    C : remover
    D : ejector
    Q.no 50. Of the following properties of nozzle, which of them does not influence the MRR in
    AJM?
    A : Size
    B : Wear
    C : Outside temperature
    D : Distance from work piece
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    Q.no 51. As the abrasive flow rate increases, what happens to the volumetric removal rate in
    AJM?
    A : Increases
    B : Decreases
    C : Increase and then decrease
    D : Decrease and then increase
    Q.no 52. In Abrasive jet machining, work piece material of removed by which of the following
    means?
    A : Vaporization
    B : Electro plating
    C : Mechanical abrasion
    D : Corrosion
    Q.no 53. Which are the suitable hole circles to index 87 divisions by compound indexing
    A : 37 and 49
    B : 15 and 33
    C : 23 and 29
    D : 29 and 33
    Q.no 54. Which of the following is not a media of energy transfer on which the advanced
    machining processes are classified?
    A : Reactive atmosphere
    B : Electrons
    C : Electrolyte
    D : Chemical ablation
    Q.no 55. The following type of jig is used to drill a series of equidistant hole along a circle
    A : Plate type jig
    B : Index jig
    C : Open type jig
    D : Pot type jig
    Q.no 56. If n=number of divisions required, then find the number of holes to be moved in
    direct indexing
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    A : 12/n
    B : 24/n
    C : 12n D : 24n
    Q.no 57. The following type of jig is used for machining in more than one plane
    A : Template jig
    B : Plate type jig
    C : Box type jig
    D : Open type jig
    Q.no 58. In Abrasive jet machining, what may be the size of the abrasive grains used?
    A : 10 – 40 μm
    B : 50 – 100 μm
    C : 100 – 150 μm
    D : 200 – 300 μm
    Q.no 59. Which of the following will be better to use for machining of
    soft work piece?
    A : V-bond
    B : R-bond
    C : Both V and R bond
    D : Anyother
    Q.no 60. Restricts the movement a cylinder placed in a V- block for 3-2-1 principle ?
    A : 1 (Translational) 2 (Rotary)
    B : 2 (Translational) 1 (Rotary)
    C : 2 (Translational) 2 (Rotary)
    D : 1 (Translational) 3 (Rotary)
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    Answer for Question No 1. is b
    Answer for Question No 2. is d
    Answer for Question No 3. is d
    Answer for Question No 4. is d
    Answer for Question No 5. is d
    Answer for Question No 6. is a
    Answer for Question No 7. is d
    Answer for Question No 8. is a
    Answer for Question No 9. is d
    Answer for Question No 10. is a
    Answer for Question No 11. is c
    Answer for Question No 12. is a
    Answer for Question No 13. is b
    Answer for Question No 14. is a
    Answer for Question No 15. is d
    Answer for Question No 16. is a
    Answer for Question No 17. is b
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    Answer for Question No 18. is b
    Answer for Question No 19. is d
    Answer for Question No 20. is d
    Answer for Question No 21. is b
    Answer for Question No 22. is a
    Answer for Question No 23. is b
    Answer for Question No 24. is d
    Answer for Question No 25. is a
    Answer for Question No 26. is a
    Answer for Question No 27. is c
    Answer for Question No 28. is d
    Answer for Question No 29. is d
    Answer for Question No 30. is b
    Answer for Question No 31. is b
    Answer for Question No 32. is c
    Answer for Question No 33. is c
    Answer for Question No 34. is a
    Answer for Question No 35. is c
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    Answer for Question No 36. is b
    Answer for Question No 37. is d
    Answer for Question No 38. is a
    Answer for Question No 39. is b
    Answer for Question No 40. is b
    Answer for Question No 41. is b
    Answer for Question No 42. is d
    Answer for Question No 43. is c
    Answer for Question No 44. is b
    Answer for Question No 45. is c
    Answer for Question No 46. is c
    Answer for Question No 47. is d
    Answer for Question No 48. is a
    Answer for Question No 49. is d
    Answer for Question No 50. is c
    Answer for Question No 51. is c
    Answer for Question No 52. is c
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    Answer for Question No 53. is d
    Answer for Question No 54. is d
    Answer for Question No 55. is b
    Answer for Question No 56. is b
    Answer for Question No 57. is c
    Answer for Question No 58. is a
    Answer for Question No 59. is b
    Answer for Question No 60. is c
    25/12/2020 Page
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    Seat No –
    Total number of questions : 60
    11668_ MANUFACTURING PROCESS II
    Time : 1hr
    Max Marks : 50
    N.B
    1) All questions are Multiple Choice Questions having single correct option.
    2) Attempt any 50 questions out of 60.
    3) Use of calculator is allowed.
    4) Each question carries 1 Mark.
    5) Specially abled students are allowed 20 minutes extra for examination.
    6) Do not use pencils to darken answer.
    7) Use only black/blue ball point pen to darken the appropriate circle.
    8) No change will be allowed once the answer is marked on OMR Sheet.
    9) Rough work shall not be done on OMR sheet or on question paper.
    10) Darken ONLY ONE CIRCLE for each answer.
    Q.no 1. Surface grinding is done to produce
    A : tapered surface
    B : flat surface
    C : internal cylindrical
    holes
    D : Threaded
    surfaces
    Q.no 2. Which of the following code is used to specify Coolant ON in milling and drilling?
    A : M30
    B : M07
    C : M02
    D : M09
    Q.no 3. Broaching is not applied for machining
    A : internal and external surfaces
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    B : round or irregular shaped holes
    C : external flat and contoured surfaces
    D : Spherical surfaces
    Q.no 4. In a milling operation, two side milling cutters are mounted with a desired distance
    between them so that both sides of a workpiece can be milled simultaneously. This set up is
    called
    A : gang milling
    B : straddle milling
    C : string milling
    D : side milling
    Q.no 5. The method of grinding used to produce internal cylindrical
    holes and tapers, is
    A : Internal cylindrical grinding
    B : Form grinding
    C : External cylindrical grinding
    D : Surface grinding
    Q.no 6. The tool material best suited for machining of 0.2% Carbon steel at high speed (100-
    300 m/min.) is
    A : Co-WC
    B : Diamond
    C : HSS
    D : CBN
    Q.no 7. Which of the following code is used in programming in incremental coordinates?
    A : G90
    B : G91
    C : G92
    D : G94
    Q.no 8. Twist drills are made of
    A : High speed steel
    B : Carbon steel
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    C : Stainless steel
    D : Either (1) or (2)
    Q.no 9. Chip breakers are used to
    A : Increase tool life
    B : Remove chips from bed
    C : Break the chips into short segments
    D : To minimize heat generation
    Q.no 10. The operation of making a cone-shaped enlargement of the end of a hole is known as
    A : counter-sinking
    B : counter-boring
    C : trepanning
    D : spot facing
    Q.no 11. The following is(are) the function(s) of a jig
    A : Holding, guiding and locating
    B : only Guiding
    C : only Locating
    D : only holding
    Q.no 12. The angle between side cutting edge and end cutting edge is called as
    A : approach angle
    B : nose angle
    C : side relief angle
    D : end relief angle
    Q.no 13. The code for Incremental programming is
    A : G90
    B : G91
    C : M 90
    D : M 91
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    Q.no 14. Which of the following code is used to specify Spindle start forward / Clockwise
    rotation in milling and drilling?
    A : M12
    B : M01
    C : M15
    D : M03
    Q.no 15. The relation between tool life (T) and cutting speed (V) is
    VTn = Constant. In this relation, the value of n depends upon
    A : Work material
    B : Tool material
    C : Type of chip produced
    D : Working conditions
    Q.no 16. The basic purposes of developing and using suitable jigs and fixtures are
    A : to eliminate marking, positioning, alignments etc.
    B : to eliminate maching process
    C : to check the accuracy of workpiece
    D : to resharpem the cutting tool
    Q.no 17. In which of the following machine, the work rotates and the tool is stationary?
    A : Vertical boring machine
    B : Horizontal boring machine
    C : Precision Boring Machine
    D : Jig Boring Machine
    Q.no 18. In which of the following machine, the work is usually rotated while the drill is fed
    into work
    A : Sensitive drilling machine
    B : Radial drilling machine
    C : Gang drilling machine
    D : Deep hole drilling machine
    Q.no 19. Which of the following code is used to specify Coolant OFF in milling and drilling?
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    A : M30
    B : M07
    C : M02
    D : M09
    Q.no 20. Command G00 Means
    A : Feed motion in a circular path
    B : Rapid Motion
    C : Feed motion in Stright line
    D : Slow-motion
    Q.no 21. Diffusion wear is caused because of
    I. High temp. near tool-chip interface
    II. Compositional gradient across the tool-chip interface
    A : Both (I) and (II)
    B : Only (I)
    C : Only (II)
    D : Neither (I) nor (II)
    Q.no 22. Which of the following is not element of Jigs and fixtures
    A : tool guiding frame and bushes
    B : base and body or frame
    C : cutter
    D : indexing plates
    Q.no 23. Surface which face the workpiece is known as…… Of the
    tool.
    A : Flank
    B : Base
    C : Heel
    D : Referance
    Q.no 24. _ is equal to half the diameter of the drill used. A : feed 25/12/2020 Page Page 6/12 B : depth of cut C : machining time D : Spndle Speed Q.no 25. The use of jigs and fixtures A : Facilitates deployment of less skilled labour for production B : Eliminates pre-machining operations like marking, measuring, laying out etc. C : reduced manual handling operation D : All of the above Q.no 26. Several machine tools can be controlled by a central computer in A : NC (Numerical Control) machine tool B : CNC (Computer Numerical Control) machine tool C : DNC (Direct Numerical Control) machine tool D : CCNC (Central-Computer Numerical Control) machine tool Q.no 27. In which type of locator having depression /recess same as the shape of the job ? A : Pin locator B : Nesting locator C : Solid surface D : Adjustable locator Q.no 28. Which of the following process has the lowest cutting speed? A : Slotting B : Lapping C : Milling D : Reaming Q.no 29. In CNC machine tool, the part program entered into the computer memory A : can be used only once B : can be used again and again C : can be used again but it has to be modified every time 25/12/2020 Page Page 7/12 D : cannot say Q.no 30. Several machine tool can be controlled by a central computer in A : CNC B : DNC C : NC D : CCNC Q.no 31. This type of jig is employed on multi-spindle machines A : Index jig B : Universal jig C : Open type jig D : Multi-station jig Q.no 32. The following holds the workpiece securely in a jig or fixture against the cutting forces A : Clamping device B : Locating device C : fixing devices D : Guiding device Q.no 33. In drilling aluminium, a drill with A : zero helix angle is used B : low helix angle is used C : high helix angle is used D : any helix angle can be used Q.no 34. NC contouring is example of A : Continuous path positioning B : Point-to-point positioning C : Absolute positionng D : Incremental positioning Q.no 35. What are the values of material removal rates in EDM? 25/12/2020 Page Page 8/12 A : 0.001 to 0.1 mm3/min B : 0.1 to 400 mm3/min C : 400 to 1000 mm3/min D : 1000 to 5000 mm3/min Q.no 36. The effect of setting a boring tool above center height leads to A : Increase in the effective rake angle and a decrease in the effective clearance angle B : Increase in both effective rake angle and effective clearance angle C : Decrease in the effective rake angle and an increase in the effective clearance angle D : Decrease in both effective rake angle and effective clearance angle Q.no 37. Which of the following specified grinding wheel will have Silicon carbide abrasive? A : Z 46 K 5 B 17 B : C 600 K 5 B 17 C : A 8 K 5 B 17 D : A 80 K 5 B 17 Q.no 38. Which of the following represents the correct symbol of vertified bond in a specification of grinding wheel? A : V B : R C : B D : S Q.no 39. Dovetailing can be performed more effectively by milling machine.
    A : horizontal
    B : vertical
    C : can’t say anything
    D : none of the mentioned
    Q.no 40. In a shaper, the length of stroke is increased by
    A : Increasing the centre distance of bull gear and crank pin
    B : Decreasing the centre distance of bull gear and crank pin
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    C : Increasing the length of the arm
    D : Decreasing the length of the slot in the slotted lever
    Q.no 41. 3-2-1 principle is also known as ?
    A : 6 point location
    B : Principle of holding
    C : x-x-z location of principle
    D : Principle of clamping
    Q.no 42. The process of improving the cutting action of the grinding
    wheel is called
    A : Truing
    B : Dressing
    C : Facing
    D : Clearing
    Q.no 43. Which of the following is basically a polishing operation?
    A : Soft grinding
    B : Lapping
    C : Honing
    D : Buffing
    Q.no 44. The system which holds the workpiece against the cutting forces without causing any
    damage to it, is called ?
    A : Clamping
    B : Location
    C : indexing
    D : None of this
    Q.no 45. It is desired to perform the operations like drilling, reaming, counter-boring etc. on a
    work piece. Which of the following machine will be used?
    A : Sensitive drilling machine
    B : Radial drilling machine
    C : Gang drilling machine
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    D : Multiple spindle drilling machine
    Q.no 46. Generally adjustable locators used to locate which surface ?
    A : grinding
    B : Rough
    C : machined
    D : superfinished
    Q.no 47. If Larger the rake angle, Shear plane length is
    A : Shorter
    B : Larger
    C : Same
    D : Not affected
    Q.no 48. The usual value of the point angle of a drill is
    A : 70°
    B : 100°
    C : 118°
    D : 130°
    Q.no 49. Largest amount of material is used in
    A : Buffing
    B : Lapping
    C : Honing
    D : Superfinishing
    Q.no 50. Carbide and ceramic tips are used in
    A : slab mill
    B : face mill
    C : fly mill
    D : Gang Mill
    Q.no 51. Calculate the cutting speed of drilling operation when diameter of drill is 10 mm and
    rotational speed of drill is 200 r.p.m.
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    A : 6.283 m/min
    B : 3.142 m/min
    C : 8.362 m/min
    D : 10.216 m/min
    Q.no 52. The following type of jig suits best for drilling of holes in hollow cylindrical
    components, with relatively smaller outside and inside diameters, such as bushes
    A : Box type jig
    B : Open type jig
    C : Index jig
    D : Pot type jig
    Q.no 53. The following type of jig is used to drill a series of equidistant hole along a circle
    A : Plate type jig
    B : Index jig
    C : Open type jig
    D : Pot type jig
    Q.no 54. V-blocks (Vee locators) are used for clamping as well as locating when faces are
    inclined upto degrees
    A : 30
    B : 12
    C : 16
    D : 3
    Q.no 55. Maching time for drilling four holes of 16 mm diameter each on a flange of 32 mm
    thickness with cutting speed 24m/min, feed 0.2 mm/rev using radial drilling machine is
    A : 0.54 mins
    B : 2.54 mins
    C : 1.54 mins
    D : 0.74 mins
    Q.no 56. In a drilling operation using a twist drill, the lip angle is 120 degree (standard), the
    spindle speed is 300 rpm, the feed is 0.2 mm/rev and the drill diameter is 10 mm,calculate
    machining time to drill a hole of 30 mm long ?
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    A : 0.88 min
    B : 0.54 min
    C : 1.2 min
    D : 3 min
    Q.no 57. Which of the following will be better to use for machining of
    soft work piece?
    A : V-bond
    B : R-bond
    C : Both V and R bond
    D : Anyother
    Q.no 58. The following material is commonly used for making locating and clamping devices
    A : High carbon steel
    B : Low carbon steel
    C : High speed steel
    D : Die steel
    Q.no 59. In centerless grinders, the regulating wheel is inclined at
    A : 0° to 8°
    B : 9° to 15°
    C : 16° to 20°
    D : 21° to 25°
    Q.no 60. The relief or clearance at the cutting edge of a flat drill varies from
    A : 3° to 8°
    B : 20° to 30°
    C : 60° to 90°
    D : 90° to 120°
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    Answer for Question No 1. is b
    Answer for Question No 2. is b
    Answer for Question No 3. is d
    Answer for Question No 4. is b
    Answer for Question No 5. is a
    Answer for Question No 6. is d
    Answer for Question No 7. is b
    Answer for Question No 8. is d
    Answer for Question No 9. is c
    Answer for Question No 10. is a
    Answer for Question No 11. is d
    Answer for Question No 12. is b
    Answer for Question No 13. is b
    Answer for Question No 14. is d
    Answer for Question No 15. is b
    Answer for Question No 16. is a
    Answer for Question No 17. is a
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    https://sppu.wheebox.com/WAC-3/openanswers.obj 2/4
    Answer for Question No 18. is d
    Answer for Question No 19. is d
    Answer for Question No 20. is b
    Answer for Question No 21. is a
    Answer for Question No 22. is c
    Answer for Question No 23. is a
    Answer for Question No 24. is b
    Answer for Question No 25. is d
    Answer for Question No 26. is c
    Answer for Question No 27. is b
    Answer for Question No 28. is b
    Answer for Question No 29. is b
    Answer for Question No 30. is b
    Answer for Question No 31. is d
    Answer for Question No 32. is a
    Answer for Question No 33. is c
    Answer for Question No 34. is a
    Answer for Question No 35. is b
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    Answer for Question No 36. is a
    Answer for Question No 37. is b
    Answer for Question No 38. is a
    Answer for Question No 39. is b
    Answer for Question No 40. is a
    Answer for Question No 41. is a
    Answer for Question No 42. is b
    Answer for Question No 43. is d
    Answer for Question No 44. is a
    Answer for Question No 45. is c
    Answer for Question No 46. is b
    Answer for Question No 47. is a
    Answer for Question No 48. is c
    Answer for Question No 49. is c
    Answer for Question No 50. is b
    Answer for Question No 51. is a
    Answer for Question No 52. is d
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    Answer for Question No 53. is b
    Answer for Question No 54. is d
    Answer for Question No 55. is c
    Answer for Question No 56. is b
    Answer for Question No 57. is b
    Answer for Question No 58. is a
    Answer for Question No 59. is a
    Answer for Question No 60. is a
    25/12/2020 Page
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    Seat No –
    Total number of questions : 60
    11668
    MANUFACTURING PROCESS II
    Time : 1hr
    Max Marks : 50
    N.B
    1) All questions are Multiple Choice Questions having single correct option.
    2) Attempt any 50 questions out of 60.
    3) Use of calculator is allowed.
    4) Each question carries 1 Mark.
    5) Specially abled students are allowed 20 minutes extra for examination.
    6) Do not use pencils to darken answer.
    7) Use only black/blue ball point pen to darken the appropriate circle.
    8) No change will be allowed once the answer is marked on OMR Sheet.
    9) Rough work shall not be done on OMR sheet or on question paper.
    10) Darken ONLY ONE CIRCLE for each answer.
    Q.no 1. Fixtures are used
    A : for holding and guiding the tool in drilling, reaming or tapping operations
    B : for holding the work in milling, grinding, planing or turning operations
    C : to check the
    accuracy
    of workpiece
    D : only guiding the tool
    Q.no 2. Which of the following code is used to specify feed per revolution in milling and
    drilling?
    A : G69
    B : G10
    C : G00
    D : G95
    Q.no 3. Which of the following is a not a surface finishing process?
    A : Honing
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    B : Buffing
    C : Lapping
    D : Turning
    Q.no 4. In an orthogonal cutting, the depth of cut is halved and the
    feed rate is double. If the chip thickness ratio is unaffected
    with the changed cutting conditions, the actual chip thickness
    will be
    A : halved
    B : doubled
    C : independent
    D : unchanged
    Q.no 5. Jigs and fixtures are
    A : machining tools
    B : precision tools
    C : both
    D : none of the above
    Q.no 6. The code for Incremental programming is
    A : G90
    B : G91
    C : M 90
    D : M 91
    Q.no 7. The time (in minutes) for a drilling a hole is given by t= (depth of hole+
    h)/Feed×RPM, where h is
    A : length of the drill
    B : drill diameter
    C : flute length of the drill
    D : cone height of the drill
    Q.no 8. Broaching is not applied for machining
    A : internal and external surfaces
    B : round or irregular shaped holes
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    C : external flat and contoured surfaces
    D : Spherical surfaces
    Q.no 9. To achieve proper location.
    A : 3-2-1 method
    B : Keep minimum locating points
    C : Make fool proof location
    D : All of the above
    Q.no 10. Continuous chips with built up edge are formed during
    machining of
    A : brittle metals
    B : ductile metals
    C : non metals
    D : hard metals
    Q.no 11. In drilling softer materials, the cutting speed is _
    as compared to harder
    materials
    A : same
    B : low
    C : high
    D : Very low
    Q.no 12. Twist drills are made of
    A : High speed steel
    B : Carbon steel
    C : Stainless steel
    D : Either (1) or (2)
    Q.no 13. A dynamo-meter is a device used for the measurement of
    A : Chip thickness ratio
    B : Forces during metal cutting
    C : Wear of the cutting tool
    D : Deflection of the cutting tool
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    Q.no 14. In CNC programing, block of Information M indicates
    A : Sequence command
    B : Preparatory commandr
    C : Miscellaneous command
    D : Machine type
    Q.no 15. Which of the following code is used to specify Tool Change in milling and drilling?
    A : M00
    B : M06
    C : M05
    D : M18
    Q.no 16. The surface of the single point cutting tool on which the chips formed in cutting
    operation slide is called as
    A : flank
    B : heel
    C : face
    D : shank
    Q.no 17. The operation which is not performed on a shaper machine is
    A : machining horizontal surface
    B : machining vertical surface
    C : machining angular surface
    D : Turning
    Q.no 18. M00 code in part programming stands forA : End of programme
    B : Programme stop
    C : End of tape
    D : Clamp slide
    Q.no 19. Which of the following code is used to specify Coolant ON in milling and drilling?
    A : M30
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    B : M07
    C : M02
    D : M09
    Q.no 20. Surface which face the workpiece is known as…… Of the
    tool.
    A : Flank
    B : Base
    C : Heel
    D : Referance
    Q.no 21. Which of the following code is used in programming in absolute coordinates?
    A : G90
    B : G32
    C : G92
    D : G01
    Q.no 22. In CNC programing, block of Information G indicates
    A : Sequence command
    B : Preparatory commandr
    C : Miscellaneous command
    D : Machine type
    Q.no 23. Automatic tool change in CNC Machine code
    A : M05
    B : M06
    C : M07
    D : M09
    Q.no 24. Jigs are not used in
    A : Drilling
    B : Milling
    C : Reaming
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    D : Tapping
    Q.no 25. Honing is used for finishing________

    A : External
    cylindrical surface
    B : Internal cylindrical
    surface
    C : Flat Surfaces
    D : Curved Surfaces
    Q.no 26. A point to point control system is suitable only for one of the following applications
    A : Milling profile
    B : Turning
    C : Drilling
    D : Grinding
    Q.no 27. The machine tool, in which calculation and setting of the operating conditions like
    depth of cut, feed, speed are done during the machining by the control system itself, is called
    A : Computer Numerical Control System
    B : Direct Numerical Control System
    C : Machining Centre System
    D : Adaptive Control System
    Q.no 28. In direct indexing, the operation may be performed in______
    A : Plain dividing head
    B : universal dividing head
    C : both plain and universal dividing head
    D : Compound Dividing head
    Q.no 29. In Super finishing operation
    A : The work rotates,
    the abrasive
    block reciprocates
    B : The abrasive
    block rotates,
    the work reciprocates
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    C : Both abrasive
    block and
    work rotates
    D : Both abrasive
    block and work
    reciprocates
    Q.no 30. In which type of locator having depression /recess same as the shape of the job ?
    A : Pin locator
    B : Nesting locator
    C : Solid surface
    D : Adjustable locator
    Q.no 31. In drilling aluminium, a drill with
    A : zero helix angle is used
    B : low helix angle is used
    C : high helix angle is used
    D : any helix angle can be used
    Q.no 32. Dielectric medium in EDM is acts as
    A : an electrolyte
    B : To make the medium conducting
    C : To decrease the material removal rate
    D : Insulator till reached to breakdown votlage
    Q.no 33. The material removal rate in grinding operation is small due to
    A : only a small
    portion of
    abrasives are
    involved in cutting
    B : positive rake angle
    C : zero rake angle
    D : material removal rate does not depend on the rake angle
    Q.no 34. Which of the following is not the advantage of CNC machines?
    A : Higher flexibility
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    B : Improved quality
    C : Reduced scrap rate
    D : Improved strength of the components
    Q.no 35. Lapping is an operation of__________
    A : Making a cone-shaped enlargement of the end of a hole
    B : Smoothing and squaring the surface around a hole
    C : Sizing and finishing a small diameter hole
    D : Producing a hole by removing metal along the circumference of a hollow cutting tool
    Q.no 36. Largest amount of material is used in
    A : Buffing
    B : Lapping
    C : Honing
    D : Superfinishing
    Q.no 37. In which of the following operation jigs are preferred over fixture?
    A : Grinding
    B : Milling
    C : Turning
    D : Drilling
    Q.no 38. In centreless grinding, work place centre will be
    A : Above the line joining the two wheel centres
    B : Below the line joining the two wheel centres
    C : On the line joining the two wheel centres
    D : At the intersection of the line joining the wheel centres with the work place pla
    Q.no 39. At high cutting speed, high temperature at tool-chip interface is caused by
  18. Heat generation rate increases with an increase in cutting speed
  19. Friction coefficient (μ) decreases with an increase in cutting speed
  20. The time required to transfer the heat decreases with an increase in cutting speed
  21. Localization of heat takes place with an increase in cutting speed
    A : 1,3 &4
    B : 1,2,3 &4
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    C : 1,2,& 3
    D : 2,3 &4
    Q.no 40. Which of the following material/s cannot be used for making of nozzle in Abrasive
    jet machining?
    A : Tungsten Carbide
    B : Steel alloy
    C : Sapphire
    D : Synthetic sapphire
    Q.no 41. Soft materials can not be economically ground due to
    A : High temperature involved
    B : Frequent wheel clogging
    C : Rapid wheel wear
    D : Low work piece stiffness
    Q.no 42. The type of tool magazines used in CNC machines are
    A : Drum
    B : Pallet
    C : Box
    D : Turret
    Q.no 43. In a shaper, the length of stroke is increased by
    A : Increasing the centre distance of bull gear and crank pin
    B : Decreasing the centre distance of bull gear and crank pin
    C : Increasing the length of the arm
    D : Decreasing the length of the slot in the slotted lever
    Q.no 44. The tungsten filament cathode is heated to what temperatures in EBM?
    A : 1000 to 1500 ᵒC
    B : 1500 to 2000 ᵒC
    C : 2500 to 3000 ᵒC
    D : 3500 to 5000 ᵒC
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    Q.no 45. Removing dull grains in order to make grinding wheel sharp
    is known as
    A : Loading
    B : Glazing
    C : Dressing
    D : Trueing
    Q.no 46. Any number of equal divisions can be obtained on milling machine by
    A : Direct Indexing
    B : Simple Indexing
    C : Compound Indexing
    D : Differential Indexing
    Q.no 47. Which of the following grinding machine will give a better
    result for rough machining?
    A : Fine grain
    B : Very fine grain
    C : Coarse grain
    D : Ultra fine grain
    Q.no 48. The following holds the workpiece securely in a jig or fixture against the cutting
    forces
    A : Clamping device
    B : Locating device
    C : fixing devices
    D : Guiding device
    Q.no 49. Which of the following is the most common bond used in
    grinding wheels?
    A : Vitrified bond
    B : Shellac bond
    C : Rubber bond
    D : Pakelite
    bond
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    Q.no 50. CNC machines are not normally operated. They are controlled by means of a:
    A : Programme
    B : Operator
    C : Cam
    D : Pulg board system
    Q.no 51. In which process the material is removed due to the action of abrasive grains?
    A : Electron Beam Machining (EBM)
    B : Ultrasonic Machining (USM)
    C : Laser Beam Machining (LBM)
    D : Electrical Discharge Machining (EDM)
    Q.no 52. Which are the suitable hole circles to index 87 divisions by compound indexing
    A : 37 and 49
    B : 15 and 33
    C : 23 and 29
    D : 29 and 33
    Q.no 53. The abrasive recommended for grinding materials of low
    tensile strength is
    A : Silicon carbide
    B : Aluminium oxide
    C : Sand stone
    D : Diamond
    Q.no 54. In drilling bakelite and fibrous plastics, the point angle of a drill is
    A : 90°
    B : 118°
    C : 135°
    D : 150°
    Q.no 55. Frequency of tool’s oscillation in USM ranges between?
    A : 5-10 kHz
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    B : 10-15 kHz
    C : 18-20 kHz
    D : 25-50 kHz
    Q.no 56. In CNC program block, N002 G02 G91 X40 Z40….,
    G02 refer to
    A : Circular interpolation in counter clockwise direction
    B : Circular interpolation in clockwise direction
    C : Linear interpolation
    D : Rapid feed
    Q.no 57. In CNC program block, N002 G02 G91 X40 Z40….,
    G91 refer to
    A : Absolute dimension
    B : Incremental dimension
    C : Rapid Feed
    D : Linear interpolation
    Q.no 58. Using the Taylor equation VT^n=c, calculate the percentage increase in tool life
    when the cutting speed is reduced is reduced by 50% (n=0.5 and c=400)
    A : 3
    B : 4
    C : 1
    D : 0.5
    Q.no 59. In centerless grinders, the regulating wheel is inclined at
    A : 0° to 8°
    B : 9° to 15°
    C : 16° to 20°
    D : 21° to 25°
    Q.no 60. The following jig can be used for several different work pieces and operations
    A : Index jig
    B : Template jig
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    C : Universal jig
    D : Multi-station jig
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    Answer for Question No 1. is b
    Answer for Question No 2. is d
    Answer for Question No 3. is d
    Answer for Question No 4. is b
    Answer for Question No 5. is b
    Answer for Question No 6. is b
    Answer for Question No 7. is d
    Answer for Question No 8. is d
    Answer for Question No 9. is d
    Answer for Question No 10. is b
    Answer for Question No 11. is c
    Answer for Question No 12. is d
    Answer for Question No 13. is b
    Answer for Question No 14. is c
    Answer for Question No 15. is b
    Answer for Question No 16. is c
    Answer for Question No 17. is d
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    Answer for Question No 18. is b
    Answer for Question No 19. is b
    Answer for Question No 20. is a
    Answer for Question No 21. is a
    Answer for Question No 22. is b
    Answer for Question No 23. is b
    Answer for Question No 24. is b
    Answer for Question No 25. is b
    Answer for Question No 26. is c
    Answer for Question No 27. is d
    Answer for Question No 28. is c
    Answer for Question No 29. is a
    Answer for Question No 30. is b
    Answer for Question No 31. is c
    Answer for Question No 32. is d
    Answer for Question No 33. is a
    Answer for Question No 34. is d
    Answer for Question No 35. is c
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    Answer for Question No 36. is c
    Answer for Question No 37. is d
    Answer for Question No 38. is a
    Answer for Question No 39. is a
    Answer for Question No 40. is b
    Answer for Question No 41. is b
    Answer for Question No 42. is a
    Answer for Question No 43. is a
    Answer for Question No 44. is c
    Answer for Question No 45. is c
    Answer for Question No 46. is c
    Answer for Question No 47. is c
    Answer for Question No 48. is a
    Answer for Question No 49. is a
    Answer for Question No 50. is a
    Answer for Question No 51. is b
    Answer for Question No 52. is d
    25/12/2020 https://sppu.wheebox.com/WAC-3/openanswers.obj
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    Answer for Question No 53. is a
    Answer for Question No 54. is a
    Answer for Question No 55. is c
    Answer for Question No 56. is b
    Answer for Question No 57. is b
    Answer for Question No 58. is b
    Answer for Question No 59. is a
    Answer for Question No 60. is c
    25/12/2020 Page
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    Seat No –
    Total number of questions : 60
    11668_ MANUFACTURING PROCESS II
    Time : 1hr
    Max Marks : 50
    N.B
    1) All questions are Multiple Choice Questions having single correct option.
    2) Attempt any 50 questions out of 60.
    3) Use of calculator is allowed.
    4) Each question carries 1 Mark.
    5) Specially abled students are allowed 20 minutes extra for examination.
    6) Do not use pencils to darken answer.
    7) Use only black/blue ball point pen to darken the appropriate circle.
    8) No change will be allowed once the answer is marked on OMR Sheet.
    9) Rough work shall not be done on OMR sheet or on question paper.
    10) Darken ONLY ONE CIRCLE for each answer.
    Q.no 1. Which of the following code is used to specify Peck-Drilling Cycle in milling and
    drilling?
    A : G73
    B : G76
    C : G87
    D : G83
    Q.no 2. Which of the following is a not a surface finishing process?
    A : Honing
    B : Buffing
    C : Lapping
    D : Turning
    Q.no 3. A drill bit of 20 mm diameter rotating at 500 r.p.m. with a feed rate of 0.2
    mm/revolution is used to drill a through-hole in a mild steel plate 20 mm thickness. The depth
    of cut in this drilling operation is
    A : 0.2 mm
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    B : 10 mm
    C : 20 mm
    D : 100 mm
    Q.no 4. Small nose radius
    A : increases tool life
    B : produces chipping and decreases tool life
    C : results in excessive stress concentration and greater heat generation
    D : decreases tool life
    Q.no 5. A dynamo-meter is a device used for the measurement of
    A : Chip thickness ratio
    B : Forces during metal cutting
    C : Wear of the cutting tool
    D : Deflection of the cutting tool
    Q.no 6. _ is equal to half the diameter of the drill used. A : feed B : depth of cut C : machining time D : Spndle Speed Q.no 7. The operation of making a cone-shaped enlargement of the end of a hole is known as A : counter-sinking B : counter-boring C : trepanning D : spot facing Q.no 8. As the cutting speed increases, the tool cutting forces A : decreases B : remain constant C : increases D : first increases and then decreases 25/12/2020 Page Page 3/12 Q.no 9. In CNC programing, block of Information G indicates A : Sequence command B : Preparatory commandr C : Miscellaneous command D : Machine type Q.no 10. Jigs are not used in A : Drilling B : Milling C : Reaming D : Tapping Q.no 11. Twist drills are made of A : High speed steel B : Carbon steel C : Stainless steel D : Either (1) or (2) Q.no 12. Reflectivity of the materials depends on which of the following factors in LBM? A : Wave length B : Properties of material C : Surface finish D : All of the mentioned Q.no 13. Lead angle in the single point cutting tool is the angle between A : the end cutting edge and the normal to the tool shank B : . the portion of side shank immediately below the side cutting edge and the line perpendicular to the base of the tool C : the tool face and the parallel to the base of the tool D : side cutting edge and the side of the tool shank Q.no 14. Which of the following code is used to return to a reference point Home position? A : G23 25/12/2020 Page Page 4/12 B : G28 C : G14 D : G19 Q.no 15. The command in CNC machine for straight line A : G00 B : G01 C : G02 D : G04 Q.no 16. Which of the following is un-conventional machining process? A : Grinding B : Milling C : Turning D : Electro chemical machining Q.no 17. In metal cutting operations, secondary deformation occurs at A : Chip-tool interface B : Below tool tip C : In uncut chip away from tool tip D : All of the above Q.no 18. Fixtures are not used in A : Milling B : Shaping C : Turning D : drilling Q.no 19. Grinding wheel Tool signature consists of ___ elements
    A : 4
    B : 5
    C : 2
    D : 7
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    Q.no 20. Which operation can correct hole location, size or alignment of the hole which is
    already drilled in workpiece?
    A : Boring
    B : Rimming
    C : Both a. and b
    D : None of the above
    Q.no 21. Which of the following code will give circular interpolation in Counterclockwise
    direction?
    A : G00
    B : G56
    C : G69
    D : G03
    Q.no 22. Which of the following code is used to specify feed per minute in milling and
    drilling?
    A : G69
    B : G10
    C : G00
    D : G94
    Q.no 23. A process which uses a multi-point cutting tool is
    A : Boring
    B : Hobbing
    C : turning
    D : Necking
    Q.no 24. The angle between side cutting edge and end cutting edge is called as
    A : approach angle
    B : nose angle
    C : side relief angle
    D : end relief angle
    Q.no 25. The use of jigs and fixtures
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    A : Facilitates deployment of less skilled labour for production
    B : Eliminates pre-machining operations like marking, measuring, laying out etc.
    C : reduced manual
    handling operation
    D : All of the above
    Q.no 26. In drilling aluminium, a drill with
    A : zero helix angle is used
    B : low helix angle is used
    C : high helix angle is used
    D : any helix angle can be used
    Q.no 27. The materials are added to cutting tools to increase their properties.
    Match the following
  22. Tungsten a. Hardness
  23. Carbon b. Hot hardness
  24. Vanadium c. Wear resistance
    A : 1-b, 2-a, 3-c
    B : 1-c, 2-a, 3-b
    C : 1-b, 2-c, 3-a
    D : 1-a, 2-b, 3-c
    Q.no 28. The following operation is performed after polishing
    A : Buffing
    B : Superfinishing
    C : Tumbling
    D : Burnishing
    Q.no 29. The system which holds the workpiece against the cutting forces without causing any
    damage to it, is called ?
    A : Clamping
    B : Location
    C : indexing
    D : None of this
    Q.no 30. Which of the following is not true for radial drill?
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    A : it can work with jobs, which are odd shaped
    B : the tubular column is very thick and has small diameters
    C : drill is mounted on drilling spindle
    D : none of the mentioned
    Q.no 31. A coarse grained grinding wheel is used to grind
    A : A coarse grained
    grinding wheel
    is used to grind
    B : Soft and ductile materials
    C : Hard and ductile materials
    D : Soft and brittle materials
    Q.no 32. Side milling cutter is an example of _ milling cutter. A : arbor type B : shank type C : special type D : none of the mentioned Q.no 33. The point angle of a drill, for drilling stainless steel, is A : 90° B : 118° C : 135° D : 150° Q.no 34. A point to point control system is suitable only for one of the following applications A : Milling profile B : Turning C : Drilling D : Grinding Q.no 35. Feed is measured in units of
    A : length/revolution
    B : degree/revolution
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    C : length
    D : velocity
    Q.no 36. A grinding ratio of 200 implies that the
    A : grinding wheel wears 200 times the volume of the material removed
    B : grinding wheel wears 0.005 times the volume of the material removed
    C : aspect ratio of abrasive particles used in the grinding wheel is 200
    D : ratio of volume
    of abrasive particle to that of grinding wheel is 200
    Q.no 37. Which of the following is basically a polishing operation?
    A : Soft grinding
    B : Lapping
    C : Honing
    D : Buffing
    Q.no 38. NC contouring is example of
    A : Continuous path positioning
    B : Point-to-point positioning
    C : Absolute positionng
    D : Incremental positioning
    Q.no 39. This type of jig is employed on multi-spindle machines
    A : Index jig
    B : Universal jig
    C : Open type jig
    D : Multi-station jig
    Q.no 40. Which of the following is not correct about fixture?
    A : It is used to hold the work
    B : It is used to position the work the work
    C : It does not guide cutting tool.
    D : It assures high accuracy of parts
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    Q.no 41. In which type of locator having depression /recess same as the shape of the job ?
    A : Pin locator
    B : Nesting locator
    C : Solid surface
    D : Adjustable locator
    Q.no 42. In machining operation, Uncut chip thickness t0= 0.8 mm and Chip thickness tc=1.2
    mm. The correct option for the chip thickness ratio (r) is
    A : 0.4
    B : 0.66
    C : 1.5
    D : 0.83
    Q.no 43. The process of improving the cutting action of the grinding
    wheel is called
    A : Truing
    B : Dressing
    C : Facing
    D : Clearing
    Q.no 44. Which of the following is not the advantage of CNC machines?
    A : Higher flexibility
    B : Improved quality
    C : Reduced scrap rate
    D : Improved strength of the components
    Q.no 45. Which type of locator generally used to locate cylindrical job ?
    A : V- locator
    B : Nesting locator
    C : Pin locator
    D : Internal locator
    Q.no 46. The tungsten filament cathode is heated to what temperatures in EBM?
    A : 1000 to 1500 ᵒC
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    B : 1500 to 2000 ᵒC
    C : 2500 to 3000 ᵒC
    D : 3500 to 5000 ᵒC
    Q.no 47. In Super finishing operation
    A : The work rotates,
    the abrasive
    block reciprocates
    B : The abrasive
    block rotates,
    the work reciprocates
    C : Both abrasive
    block and
    work rotates
    D : Both abrasive
    block and work
    reciprocates
    Q.no 48. At high cutting speed, high temperature at tool-chip interface is caused by
  25. Heat generation rate increases with an increase in cutting speed
  26. Friction coefficient (μ) decreases with an increase in cutting speed
  27. The time required to transfer the heat decreases with an increase in cutting speed
  28. Localization of heat takes place with an increase in cutting speed
    A : 1,3 &4
    B : 1,2,3 &4
    C : 1,2,& 3
    D : 2,3 &4
    Q.no 49. Which of the following process has the lowest cutting speed?
    A : Slotting
    B : Lapping
    C : Milling
    D : Reaming
    Q.no 50. If Larger the rake angle, Shear plane length is
    A : Shorter
    B : Larger
    C : Same
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    D : Not affected
    Q.no 51. V-blocks (Vee locators) are used for clamping as well as locating when faces are
    inclined upto degrees
    A : 30
    B : 12
    C : 16
    D : 3
    Q.no 52. Circumference of a work piece is to be divided into 60 equal divisions using simple
    indexing method having 40 worm wheel teeth. Indexing movement will be
    A : 12 holes on 18 hole circle
    B : 16 holes on 18 hole circle
    C : 12 holes on 21 hole circle
    D : 16 holes on 21 hole circle
    Q.no 53. If l=length of travel of the drill in mm, n=rpm of the drill, s= feed per revolution of
    the drill in mm. Then machining time can be given as_____
    A : (ln)/s B : (ls)/n
    C : l/(n*s)
    D : (1+n)/s
    Q.no 54. Which of the following range of numbers represents dense
    structure of abrasives?
    A : 0 to 7
    B : 8 to 10
    C : 10 to 12
    D : 12 to 16
    Q.no 55. Which of the following is not a media of energy transfer on which the advanced
    machining processes are classified?
    A : Reactive atmosphere
    B : Electrons
    C : Electrolyte
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    D : Chemical ablation
    Q.no 56. Restricts the movement a cylinder placed in a V- block for 3-2-1 principle ?
    A : 1 (Translational) 2 (Rotary)
    B : 2 (Translational) 1 (Rotary)
    C : 2 (Translational) 2 (Rotary)
    D : 1 (Translational) 3 (Rotary)
    Q.no 57. In an orthogonal machine test on a steel, rake angle 20 degrees, uncut chip thickness
    is 0.1 mm,
    cut chip thickness is 0.25 mm calculate shear angle approximately equals to
    A : 23 Degrees
    B : 33 Degrees
    C : 43 Degrees
    D : 13 Degrees
    Q.no 58. Which are the suitable hole circles to index 51 divisions by compound indexing
    A : 17 and 18
    B : 15 and 16
    C : 16 and 18
    D : 18 and 19
    Q.no 59. The following is a quick acting clamp
    A : Hinged clamp
    B : Cam operated clamp
    C : Bridge clamp
    D : Edge clamp
    Q.no 60. The following type of jig is used for machining in more than one plane
    A : Template jig
    B : Plate type jig
    C : Box type jig
    D : Open type jig
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    https://sppu.wheebox.com/WAC-3/openanswers.obj 1/4
    Answer for Question No 1. is d
    Answer for Question No 2. is d
    Answer for Question No 3. is b
    Answer for Question No 4. is c
    Answer for Question No 5. is b
    Answer for Question No 6. is b
    Answer for Question No 7. is a
    Answer for Question No 8. is a
    Answer for Question No 9. is b
    Answer for Question No 10. is b
    Answer for Question No 11. is d
    Answer for Question No 12. is d
    Answer for Question No 13. is d
    Answer for Question No 14. is b
    Answer for Question No 15. is b
    Answer for Question No 16. is d
    Answer for Question No 17. is a
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    https://sppu.wheebox.com/WAC-3/openanswers.obj 2/4
    Answer for Question No 18. is d
    Answer for Question No 19. is d
    Answer for Question No 20. is b
    Answer for Question No 21. is d
    Answer for Question No 22. is d
    Answer for Question No 23. is b
    Answer for Question No 24. is b
    Answer for Question No 25. is d
    Answer for Question No 26. is c
    Answer for Question No 27. is b
    Answer for Question No 28. is a
    Answer for Question No 29. is a
    Answer for Question No 30. is b
    Answer for Question No 31. is b
    Answer for Question No 32. is c
    Answer for Question No 33. is c
    Answer for Question No 34. is c
    Answer for Question No 35. is a
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    https://sppu.wheebox.com/WAC-3/openanswers.obj 3/4
    Answer for Question No 36. is b
    Answer for Question No 37. is d
    Answer for Question No 38. is a
    Answer for Question No 39. is d
    Answer for Question No 40. is c
    Answer for Question No 41. is b
    Answer for Question No 42. is b
    Answer for Question No 43. is b
    Answer for Question No 44. is d
    Answer for Question No 45. is a
    Answer for Question No 46. is c
    Answer for Question No 47. is a
    Answer for Question No 48. is a
    Answer for Question No 49. is b
    Answer for Question No 50. is a
    Answer for Question No 51. is d
    Answer for Question No 52. is a
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    https://sppu.wheebox.com/WAC-3/openanswers.obj 4/4
    Answer for Question No 53. is c
    Answer for Question No 54. is a
    Answer for Question No 55. is d
    Answer for Question No 56. is c
    Answer for Question No 57. is a
    Answer for Question No 58. is a
    Answer for Question No 59. is b
    Answer for Question No 60. is c
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    Seat No –
    Total number of questions : 60
    11668_ MANUFACTURING PROCESS II
    Time : 1hr
    Max Marks : 50
    N.B
    1) All questions are Multiple Choice Questions having single correct option.
    2) Attempt any 50 questions out of 60.
    3) Use of calculator is allowed.
    4) Each question carries 1 Mark.
    5) Specially abled students are allowed 20 minutes extra for examination.
    6) Do not use pencils to darken answer.
    7) Use only black/blue ball point pen to darken the appropriate circle.
    8) No change will be allowed once the answer is marked on OMR Sheet.
    9) Rough work shall not be done on OMR sheet or on question paper.
    10) Darken ONLY ONE CIRCLE for each answer.
    Q.no 1. For which of the following operations, broaching can be used?
    A : Threading
    B : Grinding
    C : Spline cutting
    D : Increasing the size of the existing hole for a certain length
    Q.no 2. Continuous chips with built up edge are formed during
    machining of
    A : brittle metals
    B : ductile metals
    C : non metals
    D : hard metals
    Q.no 3. Honing is used for finishing_________
    A : External
    cylindrical surface
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    B : Internal cylindrical
    surface
    C : Flat Surfaces
    D : Curved Surfaces
    Q.no 4. Broaching is not applied for machining
    A : internal and external surfaces
    B : round or irregular shaped holes
    C : external flat and contoured surfaces
    D : Spherical surfaces
    Q.no 5. Which of the following is not a locating device?
    A : nesting
    B : flathead
    C : pins
    D : strap
    Q.no 6. For CNC machining skilled part programmers are needed.
    A : true
    B : false
    C : SOMETIME
    D : NOT AT ALL
    Q.no 7. Cutting fluids mostly used for machining steel is…….
    A : Distilled Water
    B : Soluble oil
    C : Hydraulic oil
    D : Heavy oil
    Q.no 8. When cutting face of tool is 90° to the line
    of action of tool then it is known as
    A : Oblique cutting
    B : Orthogonal cutting
    C : face cutting
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    D : inverse cutting
    Q.no 9. The angle between side cutting edge and end cutting edge is called as
    A : approach angle
    B : nose angle
    C : side relief angle
    D : end relief angle
    Q.no 10. Which of the following code will give circular interpolation in Counterclockwise
    direction?
    A : G00
    B : G56
    C : G69
    D : G03
    Q.no 11. In CNC Absolute system command
    A : G90
    B : G91
    C : G92
    D : G93
    Q.no 12. Which of the following code is used to specify Spindle start reverse / Counterclockwise rotation in milling and drilling?
    A : M12
    B : M01
    C : M15
    D : M04
    Q.no 13. Which of the following code is used to specify Coolant ON in milling and drilling?
    A : M30
    B : M07
    C : M02
    D : M09
    Q.no 14. End of program (Reset)
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    A : M33
    B : M31
    C : M32
    D : M30
    Q.no 15. Which of the following code is used to specify feed per minute in milling and
    drilling?
    A : G69
    B : G10
    C : G00
    D : G94
    Q.no 16. The following is(are) the advantage(s) of cast jigs or fixtures
    A : No heat treatments are required for the cast jigs and fixtures
    B : If cast jigs or fixture drops down, they don’t get misaligned or de-shaped, although it may break
    C : It prevents the
    occurrence
    of tool chatter
    in milling
    D : All of the above
    Q.no 17. The method of grinding used to produce internal cylindrical
    holes and tapers, is
    A : Internal cylindrical grinding
    B : Form grinding
    C : External cylindrical grinding
    D : Surface grinding
    Q.no 18. The basic purposes of developing and using suitable jigs and fixtures are
    A : to eliminate marking, positioning, alignments etc.
    B : to eliminate maching process
    C : to check the accuracy of workpiece
    D : to resharpem the cutting tool
    Q.no 19. In an orthogonal cutting, the depth of cut is halved and the
    feed rate is double. If the chip thickness ratio is unaffected
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    with the changed cutting conditions, the actual chip thickness
    will be
    A : halved
    B : doubled
    C : independent
    D : unchanged
    Q.no 20. With the use of Jigs and fixture total cost of production
    A : Increases
    B : Decreases
    C : Remains same
    D : Jigs are not used in any production process
    Q.no 21. In oblique cutting chips are in form of
    A : Long curl
    B : Flat spiral
    C : Brittle
    D : Short & thick
    Q.no 22. In case of tool changer for CNC machines ATC means
    A : Anti Tool changer
    B : Automatic Tool Changer
    C : Automatic Turret Changer
    D : Automatic Tool Command
    Q.no 23. A dynamo-meter is a device used for the measurement of
    A : Chip thickness ratio
    B : Forces during metal cutting
    C : Wear of the cutting tool
    D : Deflection of the cutting tool
    Q.no 24. Which of the following operation is performed to provide
    recess for bolt heads or nuts?
    A : Counterboring
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    B : Spot Facing
    C : Tapping
    D : Countersinking
    Q.no 25. The main purpose of a boring operation, as compared to drilling, is to
    A : Drill a hole
    B : Finish the drilled hole
    C : Correct the hole
    D : Enlarge the existing hole
    Q.no 26. In which of the following methods, an electrolyte is used?
    A : Ultrasonic Machining
    B : Electrochemical Machining
    C : Abrasive Jet Machining
    D : Laser Beam Machining
    Q.no 27. In which of the following operation jigs are preferred over fixture?
    A : Grinding
    B : Milling
    C : Turning
    D : Drilling
    Q.no 28. Consider the following actions:
  29. Mechanical abrasion
  30. Diffusion
  31. Plastic deformation
  32. Oxidation
    Which of the above are the causes of tool wear?
    A : 2 & 3
    B : 1 & 2
    C : 1, 2 & 4
    D : 1 & 3
    Q.no 29. Number of the degree of freedom of a workpiece in space is equal to
    A : 10
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    B : 12
    C : 16
    D : 20
    Q.no 30. Which of the following material/s cannot be used for making of nozzle in Abrasive
    jet machining?
    A : Tungsten Carbide
    B : Steel alloy
    C : Sapphire
    D : Synthetic sapphire
    Q.no 31. Which of the following is not true for radial drill?
    A : it can work with jobs, which are odd shaped
    B : the tubular column is very thick and has small diameters
    C : drill is mounted on drilling spindle
    D : none of the mentioned
    Q.no 32. The point angle of a drill, for drilling stainless steel, is
    A : 90°
    B : 118°
    C : 135°
    D : 150°
    Q.no 33. The tool angle which helps in reducing the rubbing of the machined surface to the
    flank of the tool is
    A : Rake angle
    B : Cutting edge angle
    C : Clearance angle
    D : Nose radius
    Q.no 34. Which of the following is a surface finishing operation?
    A : Drilling
    B : Lapping
    C : Milling
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    D : Turning
    Q.no 35. Cemented carbide tool of straight Co-WC is not suitable for steel cutting, because
    A : Steel has high hardness
    B : Cutting of steel
    generates very
    high temperature
    C : Steel contains Fe
    which reacts with
    C and promote
    diffusive wear
    D : Steel contains
    Fe which reacts
    with Co and
    promote
    abrasive wear
    Q.no 36. In a shaper, the length of stroke is increased by
    A : Increasing the centre distance of bull gear and crank pin
    B : Decreasing the centre distance of bull gear and crank pin
    C : Increasing the length of the arm
    D : Decreasing the length of the slot in the slotted lever
    Q.no 37. In NC (Numerical Control) machine tool, the position feedback package is connected
    between
    A : control unit and programmer
    B : programmer and machine tool
    C : control unit and machine tool
    D : programmer and process planning
    Q.no 38. The machine tool, in which calculation and setting of the operating conditions like
    depth of cut, feed, speed are done during the machining by the control system itself, is called
    A : Computer Numerical Control System
    B : Direct Numerical Control System
    C : Machining Centre System
    D : Adaptive Control System
    Q.no 39. The device, fed to the control unit of NC machine tool which sends the position
    command signals to sideway transmission elements of the machine, is called as
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    A : controller
    B : tape
    C : feedback unit
    D : Leadscrew
    Q.no 40. Side milling cutter is an example of _ milling cutter. A : arbor type B : shank type C : special type D : none of the mentioned Q.no 41. The effect of setting a boring tool above center height leads to A : Increase in the effective rake angle and a decrease in the effective clearance angle B : Increase in both effective rake angle and effective clearance angle C : Decrease in the effective rake angle and an increase in the effective clearance angle D : Decrease in both effective rake angle and effective clearance angle Q.no 42. The tungsten filament cathode is heated to what temperatures in EBM? A : 1000 to 1500 ᵒC B : 1500 to 2000 ᵒC C : 2500 to 3000 ᵒC D : 3500 to 5000 ᵒC Q.no 43. A point to point control system is suitable only for one of the following applications A : Milling profile B : Turning C : Drilling D : Grinding Q.no 44. In ___ operation, the chip thickness is minimum at the beginning of the cut
    and it reaches to the maximum when the cut terminates
    A : conventional milling
    B : climb milling
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    C : face milling
    D : end milling
    Q.no 45. Larger the shear plane length, power required for cutting the same
    material will be
    A : Larger
    B : smaller
    C : Same
    D : Not affected
    Q.no 46. Which of the following grinding machine will give a better
    result for rough machining?
    A : Fine grain
    B : Very fine grain
    C : Coarse grain
    D : Ultra fine grain
    Q.no 47. The device which is used to remove workpiece from close-fitting locators, after the
    workpiece has been removed is called as
    A : escaper
    B : blocker
    C : remover
    D : ejector
    Q.no 48. In centreless grinding, work place centre will be
    A : Above the line joining the two wheel centres
    B : Below the line joining the two wheel centres
    C : On the line joining the two wheel centres
    D : At the intersection of the line joining the wheel centres with the work place pla
    Q.no 49. In Super finishing operation
    A : The work rotates,
    the abrasive
    block reciprocates
    B : The abrasive
    block rotates,
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    the work reciprocates
    C : Both abrasive
    block and
    work rotates
    D : Both abrasive
    block and work
    reciprocates
    Q.no 50. Use of tail stock in cylindrical grinding machine is___________
    A : To drive the
    work piece
    B : To give feed to
    the wheel head
    C : Speed of
    grinding wheel
    D : To support the
    other end of the
    work piece
    Q.no 51. Restricts the movement a cylinder placed in a V- block for 3-2-1 principle ?
    A : 1 (Translational) 2 (Rotary)
    B : 2 (Translational) 1 (Rotary)
    C : 2 (Translational) 2 (Rotary)
    D : 1 (Translational) 3 (Rotary)
    Q.no 52. In face milling,What is the cutting speed when main axis spindle speed is 350 rpm
    and the cutter diameter is 125 mm ?
    A : 137.4 m/min
    B : 142 m/min
    C : 150.2 m/min
    D : 130 m/min
    Q.no 53. In CNC program block, N002 G02 G91 X40 Z40….,
    G91 refer to
    A : Absolute dimension
    B : Incremental dimension
    C : Rapid Feed
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    D : Linear interpolation
    Q.no 54. Frequency of tool’s oscillation in USM ranges between?
    A : 5-10 kHz
    B : 10-15 kHz
    C : 18-20 kHz
    D : 25-50 kHz
    Q.no 55. A mild steel material is being turn for 50 mm length with a feed rate of 0.15 mm/rev
    and spindle speed of 1400 rpm. The time required to cut the material in miniutes is
    A : 0.13
    B : 0.33
    C : 0.23
    D : 0.43
    Q.no 56. As the abrasive flow rate increases, what happens to the volumetric removal rate in
    AJM?
    A : Increases
    B : Decreases
    C : Increase and then decrease
    D : Decrease and then increase
    Q.no 57. Which are the suitable hole circles from index plate 2 to index 69 divisions by
    compound indexing
    A : 21 and 23
    B : 23 and 27
    C : 23 and 29
    D : 23 and 31
    Q.no 58. V-blocks (Vee locators) are used for clamping as well as locating when faces are
    inclined upto degrees
    A : 30
    B : 12
    C : 16
    D : 3
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    Q.no 59. The relief or clearance at the cutting edge of a flat drill varies from
    A : 3° to 8°
    B : 20° to 30°
    C : 60° to 90°
    D : 90° to 120°
    Q.no 60. The device which place the workpiece in the same position, in jig and fixture, cycle
    after cycle is called as
    A : placing device
    B : locating device
    C : Guiding device
    D : fixing device
    25/12/2020 https://sppu.wheebox.com/WAC-3/openanswers.obj
    https://sppu.wheebox.com/WAC-3/openanswers.obj 1/4
    Answer for Question No 1. is c
    Answer for Question No 2. is b
    Answer for Question No 3. is b
    Answer for Question No 4. is d
    Answer for Question No 5. is a
    Answer for Question No 6. is a
    Answer for Question No 7. is b
    Answer for Question No 8. is b
    Answer for Question No 9. is b
    Answer for Question No 10. is d
    Answer for Question No 11. is a
    Answer for Question No 12. is d
    Answer for Question No 13. is b
    Answer for Question No 14. is d
    Answer for Question No 15. is d
    Answer for Question No 16. is d
    Answer for Question No 17. is a
    25/12/2020 https://sppu.wheebox.com/WAC-3/openanswers.obj
    https://sppu.wheebox.com/WAC-3/openanswers.obj 2/4
    Answer for Question No 18. is a
    Answer for Question No 19. is b
    Answer for Question No 20. is b
    Answer for Question No 21. is a
    Answer for Question No 22. is b
    Answer for Question No 23. is b
    Answer for Question No 24. is a
    Answer for Question No 25. is d
    Answer for Question No 26. is b
    Answer for Question No 27. is d
    Answer for Question No 28. is c
    Answer for Question No 29. is b
    Answer for Question No 30. is b
    Answer for Question No 31. is b
    Answer for Question No 32. is c
    Answer for Question No 33. is c
    Answer for Question No 34. is b
    Answer for Question No 35. is c
    25/12/2020 https://sppu.wheebox.com/WAC-3/openanswers.obj
    https://sppu.wheebox.com/WAC-3/openanswers.obj 3/4
    Answer for Question No 36. is a
    Answer for Question No 37. is c
    Answer for Question No 38. is d
    Answer for Question No 39. is b
    Answer for Question No 40. is c
    Answer for Question No 41. is a
    Answer for Question No 42. is c
    Answer for Question No 43. is c
    Answer for Question No 44. is a
    Answer for Question No 45. is a
    Answer for Question No 46. is c
    Answer for Question No 47. is d
    Answer for Question No 48. is a
    Answer for Question No 49. is a
    Answer for Question No 50. is d
    Answer for Question No 51. is c
    Answer for Question No 52. is a
    25/12/2020 https://sppu.wheebox.com/WAC-3/openanswers.obj
    https://sppu.wheebox.com/WAC-3/openanswers.obj 4/4
    Answer for Question No 53. is b
    Answer for Question No 54. is c
    Answer for Question No 55. is c
    Answer for Question No 56. is c
    Answer for Question No 57. is c
    Answer for Question No 58. is d
    Answer for Question No 59. is a
    Answer for Question No 60. is b
    25/12/2020 Page
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    Seat No –
    Total number of questions : 60
    11668_ MANUFACTURING PROCESS II
    Time : 1hr
    Max Marks : 50
    N.B
    1) All questions are Multiple Choice Questions having single correct option.
    2) Attempt any 50 questions out of 60.
    3) Use of calculator is allowed.
    4) Each question carries 1 Mark.
    5) Specially abled students are allowed 20 minutes extra for examination.
    6) Do not use pencils to darken answer.
    7) Use only black/blue ball point pen to darken the appropriate circle.
    8) No change will be allowed once the answer is marked on OMR Sheet.
    9) Rough work shall not be done on OMR sheet or on question paper.
    10) Darken ONLY ONE CIRCLE for each answer.
    Q.no 1. Which of the following code is used to specify Tool Change in milling and drilling?
    A : M00
    B : M06
    C : M05
    D : M18
    Q.no 2. The method of grinding used to produce internal cylindrical
    holes and tapers, is
    A : Internal cylindrical grinding
    B : Form grinding
    C : External cylindrical grinding
    D : Surface grinding
    Q.no 3. When the metal is removed by erosion caused by rapidly recurring spark discharges
    between the tool and work, the process is known as
    A : Electrochemical machining
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    B : Electro-discharge machining
    C : Ultrasonic machining
    D : Plasma Machining
    Q.no 4. Which of the following does not come under the main components of ECM?
    A : Feed control system
    B : Work piece holding devices
    C : Electrolyte supply system
    D : Dielectric flushing
    Q.no 5. In CNC programing, block of Information G indicates
    A : Sequence command
    B : Preparatory commandr
    C : Miscellaneous command
    D : Machine type
    Q.no 6. The cutting speed for counter-boring should be _ that of drilling operation
    A : equal to
    B : less than
    C : greater than
    D : Not have any relation based on operation
    Q.no 7. When using of Jigs and fixture at shop floor
    A : reduced quality
    B : increase machining time
    C : decrese machining time
    D : increase labour expenses
    Q.no 8. Lead angle in the single point cutting tool is the angle between
    A : the end cutting edge and the normal to the tool shank
    B : . the portion of side shank immediately below the side cutting edge and the line perpendicular to
    the base of the tool
    C : the tool face and the parallel to the base of the tool
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    D : side cutting edge and the side of the tool shank
    Q.no 9. Which of the following code is used in programming in absolute coordinates?
    A : G90
    B : G32
    C : G92
    D : G01
    Q.no 10. Continuous chips with built up edge are formed during
    machining of
    A : brittle metals
    B : ductile metals
    C : non metals
    D : hard metals
    Q.no 11. In Electron beam machining, workpiece is held in
    A : vacuum chamber
    B : dielectric medium
    C : electrolyte
    D : air
    Q.no 12. In which of the following machine, the work rotates and the tool is stationary?
    A : Vertical boring machine
    B : Horizontal boring machine
    C : Precision Boring Machine
    D : Jig Boring Machine
    Q.no 13. A process which uses a multi-point cutting tool is
    A : Boring
    B : Hobbing
    C : turning
    D : Necking
    Q.no 14. In CNC Absolute system command
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    A : G90
    B : G91
    C : G92
    D : G93
    Q.no 15. Which of the following code is used to specify feed per revolution in milling and
    drilling?
    A : G69
    B : G10
    C : G00
    D : G95
    Q.no 16. Return to reference position command is
    A : G28
    B : G40
    C : G41
    D : G42
    Q.no 17. Which of the following is un-conventional machining process?
    A : Grinding
    B : Milling
    C : Turning
    D : Electro chemical machining
    Q.no 18. Surface which face the workpiece is known as…… Of the
    tool.
    A : Flank
    B : Base
    C : Heel
    D : Referance
    Q.no 19. In case of tool changer for CNC machines ATC means
    A : Anti Tool changer
    B : Automatic Tool Changer
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    C : Automatic Turret Changer
    D : Automatic Tool Command
    Q.no 20. The surface of the single point cutting tool on which the chips formed in cutting
    operation slide is called as
    A : flank
    B : heel
    C : face
    D : shank
    Q.no 21. Tool life in orthogonal cutting is
    A : more than the tool life in oblique cutting
    B : less than the tool life in oblique cutting
    C : equal to the tool life in oblique cutting
    D : cannot be predicted
    Q.no 22. Which of the following code is used to select x y plane in milling?
    A : G18
    B : G17
    C : G10
    D : G04
    Q.no 23. In drilling softer materials, the cutting speed is _
    as compared to harder
    materials
    A : same
    B : low
    C : high
    D : Very low
    Q.no 24. The process utilizing mainly thermal energy for removing material is
    A : Ultrasonic Machining
    B : Electrochemical Machining
    C : Abrasive Jet Machining
    D : Laser Beam Machining
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    Q.no 25. Which of the following process is based on Faradays law of Electrolysis?
    A : Electrochemical Machining
    B : Abrasive Jet Machining
    C : Ultrasonic Machining
    D : Laser Beam Machining
    Q.no 26. Soft materials can not be economically ground due to
    A : High temperature involved
    B : Frequent wheel clogging
    C : Rapid wheel wear
    D : Low work piece stiffness
    Q.no 27. In direct indexing, the operation may be performed in______
    A : Plain dividing head
    B : universal dividing head
    C : both plain and universal dividing head
    D : Compound Dividing head
    Q.no 28. The process of improving the cutting action of the grinding
    wheel is called
    A : Truing
    B : Dressing
    C : Facing
    D : Clearing
    Q.no 29. In CNC machine tool, the part program entered into the computer memory
    A : can be used only once
    B : can be used again and again
    C : can be used again but it has to be modified every time
    D : cannot say
    Q.no 30. Carbide and ceramic tips are used in
    A : slab mill
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    B : face mill
    C : fly mill
    D : Gang Mill
    Q.no 31. Larger the rake angle, power requirement for cutting the same material is
    A : Larger
    B : smaller
    C : Same
    D : Not affected
    Q.no 32. CNC machines are not normally operated. They are controlled by means of a:
    A : Programme
    B : Operator
    C : Cam
    D : Pulg board system
    Q.no 33. The following holds the workpiece securely in a jig or fixture against the cutting
    forces
    A : Clamping device
    B : Locating device
    C : fixing devices
    D : Guiding device
    Q.no 34. A grinding wheel becomes glazed (i.e. cutting edge takes a
    glass-like appearance) due to
    A : Wear of bond
    B : Breaking of abrasive grains
    C : Wear of abrasive grains
    D : Cracks on grinding wheel
    Q.no 35. Which of the following material/s cannot be used for making of nozzle in Abrasive
    jet machining?
    A : Tungsten Carbide
    B : Steel alloy
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    C : Sapphire
    D : Synthetic sapphire
    Q.no 36. In machining operation, Uncut chip thickness t0= 0.8 mm and Chip thickness tc=1.2
    mm. The correct option for the chip thickness ratio (r) is
    A : 0.4
    B : 0.66
    C : 1.5
    D : 0.83
    Q.no 37. How is material removed in Electro discharge machining?
    A : Melt and evaporate
    B : Corrode and break
    C : Mechanical erosion takes place
    D : Abrassive action
    Q.no 38. Removing dull grains in order to make grinding wheel sharp
    is known as
    A : Loading
    B : Glazing
    C : Dressing
    D : Trueing
    Q.no 39. Which of the following symbol’s range of alphabet represent
    soft grain in grinding wheel?
    A : A – H
    B : I – P
    C : Q – T
    D : T – Z
    Q.no 40. In drilling aluminium, a drill with
    A : zero helix angle is used
    B : low helix angle is used
    C : high helix angle is used
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    D : any helix angle can be used
    Q.no 41. Generally adjustable locators used to locate which surface ?
    A : grinding
    B : Rough
    C : machined
    D : superfinished
    Q.no 42. The type of tool magazines used in CNC machines are
    A : Drum
    B : Pallet
    C : Box
    D : Turret
    Q.no 43. The tungsten filament cathode is heated to what temperatures in EBM?
    A : 1000 to 1500 ᵒC
    B : 1500 to 2000 ᵒC
    C : 2500 to 3000 ᵒC
    D : 3500 to 5000 ᵒC
    Q.no 44. What are the values of currents used in EBM process?
    A : 1 to 20 mA
    B : 20 to 100 mA
    C : 100 to 200 mA
    D : 200 to 400 mA
    Q.no 45. A fixture does not
    A : Holds the workpiece
    B : Locate the workpiece
    C : Guide the tool
    D : All of the above
    Q.no 46. In CNC machine tool, the part program entered into the computer memory
    A : can be used only once
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    B : can be used again and again
    C : can be used again but it has to be modified every time
    D : cannot say
    Q.no 47. A tool used to withdraw a drill from the sleeve is called
    A : drill remover
    B : drill puller
    C : drift
    D : drill drawer
    Q.no 48. Lapping is an operation of________

    A : Making a cone-shaped enlargement of the end of a hole
    B : Smoothing and squaring the surface around a hole
    C : Sizing and finishing a small diameter hole
    D : Producing a hole by removing metal along the circumference of a hollow cutting tool
    Q.no 49. NC contouring is example of
    A : Continuous path positioning
    B : Point-to-point positioning
    C : Absolute positionng
    D : Incremental positioning
    Q.no 50. Point-to-point systems are used for _ A : Drilling B : parting C : grooving D : facing Q.no 51. The abrasive recommended for grinding materials of low tensile strength is A : Silicon carbide B : Aluminium oxide C : Sand stone 25/12/2020 Page Page 11/12 D : Diamond Q.no 52. In an orthogonal cutting operation, chip thickness ration is 0.61 and rake angle is 20 degrees, then shear angle approximately equals to A : 23 Degrees B : 36 Degrees C : 43 Degrees D : 26 Degrees Q.no 53. In drilling bakelite and fibrous plastics, the point angle of a drill is A : 90° B : 118° C : 135° D : 150° Q.no 54. A mild steel material is being turn for 50 mm length with a feed rate of 0.15 mm/rev and spindle speed of 1400 rpm. The time required to cut the material in miniutes is A : 0.13 B : 0.33 C : 0.23 D : 0.43 Q.no 55. Maching time for drilling four holes of 16 mm diameter each on a flange of 32 mm thickness with cutting speed 24m/min, feed 0.2 mm/rev using radial drilling machine is A : 0.54 mins B : 2.54 mins C : 1.54 mins D : 0.74 mins Q.no 56. Frequency of tool’s oscillation in USM ranges between? A : 5-10 kHz B : 10-15 kHz C : 18-20 kHz D : 25-50 kHz 25/12/2020 Page Page 12/12 Q.no 57. The following type of jig suits best for drilling of holes in hollow cylindrical components, with relatively smaller outside and inside diameters, such as bushes A : Box type jig B : Open type jig C : Index jig D : Pot type jig Q.no 58. Which are the suitable hole circles to index 87 divisions by compound indexing A : 37 and 49 B : 15 and 33 C : 23 and 29 D : 29 and 33 Q.no 59. The hardness of a grinding wheel is determined by the A : Hardness of abrasive grains B : Ability of the bond to retain abrasives C : Hardness of the bond D : Ability of the grinding wheel to penetrate the work piece Q.no 60. In an orthogonal machine test on a steel, rake angle 20 degrees, uncut chip thickness is 0.1 mm, cut chip thickness is 0.25 mm calculate shear angle approximately equals to A : 23 Degrees B : 33 Degrees C : 43 Degrees D : 13 Degrees 25/12/2020 https://sppu.wheebox.com/WAC-3/openanswers.obj https://sppu.wheebox.com/WAC-3/openanswers.obj 1/4 Answer for Question No 1. is b Answer for Question No 2. is a Answer for Question No 3. is b Answer for Question No 4. is d Answer for Question No 5. is b Answer for Question No 6. is c Answer for Question No 7. is c Answer for Question No 8. is d Answer for Question No 9. is a Answer for Question No 10. is b Answer for Question No 11. is a Answer for Question No 12. is a Answer for Question No 13. is b Answer for Question No 14. is a Answer for Question No 15. is d Answer for Question No 16. is a Answer for Question No 17. is d 25/12/2020 https://sppu.wheebox.com/WAC-3/openanswers.obj https://sppu.wheebox.com/WAC-3/openanswers.obj 2/4 Answer for Question No 18. is a Answer for Question No 19. is b Answer for Question No 20. is c Answer for Question No 21. is b Answer for Question No 22. is b Answer for Question No 23. is c Answer for Question No 24. is d Answer for Question No 25. is a Answer for Question No 26. is b Answer for Question No 27. is c Answer for Question No 28. is b Answer for Question No 29. is b Answer for Question No 30. is b Answer for Question No 31. is b Answer for Question No 32. is a Answer for Question No 33. is a Answer for Question No 34. is c Answer for Question No 35. is b 25/12/2020 https://sppu.wheebox.com/WAC-3/openanswers.obj https://sppu.wheebox.com/WAC-3/openanswers.obj 3/4 Answer for Question No 36. is b Answer for Question No 37. is a Answer for Question No 38. is c Answer for Question No 39. is a Answer for Question No 40. is c Answer for Question No 41. is b Answer for Question No 42. is a Answer for Question No 43. is c Answer for Question No 44. is b Answer for Question No 45. is c Answer for Question No 46. is b Answer for Question No 47. is c Answer for Question No 48. is c Answer for Question No 49. is a Answer for Question No 50. is a Answer for Question No 51. is a Answer for Question No 52. is b 25/12/2020 https://sppu.wheebox.com/WAC-3/openanswers.obj https://sppu.wheebox.com/WAC-3/openanswers.obj 4/4 Answer for Question No 53. is a Answer for Question No 54. is c Answer for Question No 55. is c Answer for Question No 56. is c Answer for Question No 57. is d Answer for Question No 58. is d Answer for Question No 59. is b Answer for Question No 60. is a 25/12/2020 Page Page 1/13 Seat No – Total number of questions : 60 11668 MANUFACTURING PROCESS II Time : 1hr Max Marks : 50 N.B 1) All questions are Multiple Choice Questions having single correct option. 2) Attempt any 50 questions out of 60. 3) Use of calculator is allowed. 4) Each question carries 1 Mark. 5) Specially abled students are allowed 20 minutes extra for examination. 6) Do not use pencils to darken answer. 7) Use only black/blue ball point pen to darken the appropriate circle. 8) No change will be allowed once the answer is marked on OMR Sheet. 9) Rough work shall not be done on OMR sheet or on question paper. 10) Darken ONLY ONE CIRCLE for each answer. Q.no 1. Which of the following code is used in programming in absolute coordinates? A : G90 B : G32 C : G92 D : G01 Q.no 2. is equal to half the diameter of the drill used.
    A : feed
    B : depth of cut
    C : machining time
    D : Spndle Speed
    Q.no 3. Lead angle in the single point cutting tool is the angle between
    A : the end cutting edge and the normal to the tool shank
    B : . the portion of side shank immediately below the side cutting edge and the line perpendicular to
    the base of the tool
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    C : the tool face and the parallel to the base of the tool
    D : side cutting edge and the side of the tool shank
    Q.no 4. A drill bit of 20 mm diameter rotating at 500 r.p.m. with a feed rate of 0.2
    mm/revolution is used to drill a through-hole in a mild steel plate 20 mm thickness. The depth
    of cut in this drilling operation is
    A : 0.2 mm
    B : 10 mm
    C : 20 mm
    D : 100 mm
    Q.no 5. The material which on machining produces chips with built
    up edge is
    A : Brittle material
    B : Tough material
    C : Hard material
    D : Ductile material
    Q.no 6. With the use of Jigs and fixture total cost of production
    A : Increases
    B : Decreases
    C : Remains same
    D : Jigs are not used in any production process
    Q.no 7. Which of the following is not a locating device?
    A : nesting
    B : flathead
    C : pins
    D : strap
    Q.no 8. Chip breakers are used to
    A : Increase tool life
    B : Remove chips from bed
    C : Break the chips into short segments
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    D : To minimize heat generation
    Q.no 9. Which type of chips form while machining of brittle materials?
    A : continuous chips
    B : discontinuous chips
    C : Built-up chips
    D : intricate
    Q.no 10. Rough grinding process is commonly used for
    A : removing
    excess material
    from casting
    B : cutting materials
    that are too
    hard to be
    machined by
    other
    conventional tools
    C : producing surfaces
    on parts to higher
    dimensional accuracy
    D : obtaining
    finer finish
    Q.no 11. Which of the following code is used to specify Tool Change in milling and drilling?
    A : M00
    B : M06
    C : M05
    D : M18
    Q.no 12. Diffusion wear is caused because of
    I. High temp. near tool-chip interface
    II. Compositional gradient across the tool-chip interface
    A : Both (I) and (II)
    B : Only (I)
    C : Only (II)
    D : Neither (I) nor (II)
    Q.no 13. Tool compensation off command is
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    A : G28
    B : G40
    C : G41
    D : G42
    Q.no 14. The process utilizing mainly thermal energy for removing material is
    A : Ultrasonic Machining
    B : Electrochemical Machining
    C : Abrasive Jet Machining
    D : Laser Beam Machining
    Q.no 15. What is broaching?
    A : A machining process used for increasing the size of the existing hole
    B : A machining process used for grinding hardened steel
    C : A machining process used for making intricate holes accurately
    D : A machining process for removal of a layer of material of desired width and depth
    Q.no 16. Jigs and fixture
    A : decrease interchangeability of parts
    B : decreases rate of production
    C : decreases the accuracy of the parts.
    D : increases the accuracy of the parts.
    Q.no 17. Which of the following operation is performed to provide
    recess for bolt heads or nuts?
    A : Counterboring
    B : Spot Facing
    C : Tapping
    D : Countersinking
    Q.no 18. Honing is used for finishing______

    A : External
    cylindrical surface
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    B : Internal cylindrical
    surface
    C : Flat Surfaces
    D : Curved Surfaces
    Q.no 19. The device which is used to remove workpiece from close-fitting locators, after the
    workpiece has been removed is called as
    A : remover
    B : escaper
    C : ejector
    D : blocker
    Q.no 20. What happens to the material removal rate when reflectivity is higher in LBM?
    A : Will decrease
    B : Will increase
    C : Will enhance
    D : Remains same
    Q.no 21. In CNC programing, block of Information G indicates
    A : Sequence command
    B : Preparatory commandr
    C : Miscellaneous command
    D : Machine type
    Q.no 22. Small nose radius
    A : increases tool life
    B : produces chipping and decreases tool life
    C : results in excessive stress concentration and greater heat generation
    D : decreases tool life
    Q.no 23. In oblique cutting chips are in form of
    A : Long curl
    B : Flat spiral
    C : Brittle
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    D : Short & thick
    Q.no 24. Jigs and Fixtures are used for
    A : variable parts production
    B : Identical parts production
    C : only in inspection
    D : sharpening of cutting tool
    Q.no 25. A dynamo-meter is a device used for the measurement of
    A : Chip thickness ratio
    B : Forces during metal cutting
    C : Wear of the cutting tool
    D : Deflection of the cutting tool
    Q.no 26. Side milling cutter is an example of _ milling cutter. A : arbor type B : shank type C : special type D : none of the mentioned Q.no 27. A grinding ratio of 200 implies that the A : grinding wheel wears 200 times the volume of the material removed B : grinding wheel wears 0.005 times the volume of the material removed C : aspect ratio of abrasive particles used in the grinding wheel is 200 D : ratio of volume of abrasive particle to that of grinding wheel is 200 Q.no 28. Dovetailing can be performed more effectively by _ milling machine.
    A : horizontal
    B : vertical
    C : can’t say anything
    D : none of the mentioned
    Q.no 29. The system which holds the workpiece against the cutting forces without causing any
    damage to it, is called ?
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    A : Clamping
    B : Location
    C : indexing
    D : None of this
    Q.no 30. Which of the following is not true for radial drill?
    A : it can work with jobs, which are odd shaped
    B : the tubular column is very thick and has small diameters
    C : drill is mounted on drilling spindle
    D : none of the mentioned
    Q.no 31. The jigs and fixtures can be constructed through
    A : Casting
    B : Fabrication
    C : Welding
    D : All of the above
    Q.no 32. How is material removed in Electro discharge machining?
    A : Melt and evaporate
    B : Corrode and break
    C : Mechanical erosion takes place
    D : Abrassive action
    Q.no 33. In CNC machine tool, the part program entered into the computer memory
    A : can be used only once
    B : can be used again and again
    C : can be used again but it has to be modified every time
    D : cannot say
    Q.no 34. The angle formed by the leading edge of the land with a plane having the axis of the
    drill, is called
    A : helix or rake angle
    B : point angle
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    C : chisel edge angle
    D : lip clearance angle
    Q.no 35. Several machine tools can be controlled by a central computer in
    A : NC (Numerical Control) machine tool
    B : CNC (Computer Numerical Control) machine tool
    C : DNC (Direct Numerical Control) machine tool
    D : CCNC (Central-Computer Numerical Control) machine tool
    Q.no 36. Which of the following is a surface finishing operation?
    A : Drilling
    B : Lapping
    C : Milling
    D : Turning
    Q.no 37. The following holds the workpiece securely in a jig or fixture against the cutting
    forces
    A : Clamping device
    B : Guiding device
    C : Locating device
    D : Indexing device
    Q.no 38. The usual value of the helix angle of a drill is
    A : 20°
    B : 30°
    C : 45°
    D : 60°
    Q.no 39. Which type of locator generally used to locate cylindrical job ?
    A : V- locator
    B : Nesting locator
    C : Pin locator
    D : Internal locator
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    Q.no 40. At high cutting speed, high temperature at tool-chip interface is caused by
  33. Heat generation rate increases with an increase in cutting speed
  34. Friction coefficient (μ) decreases with an increase in cutting speed
  35. The time required to transfer the heat decreases with an increase in cutting speed
  36. Localization of heat takes place with an increase in cutting speed
    A : 1,3 &4
    B : 1,2,3 &4
    C : 1,2,& 3
    D : 2,3 &4
    Q.no 41. Part-programming mistakes can be avoided in
    A : NC (Numerical Control) machine tool
    B : CNC (Computer Numerical Control) machine tool
    C : Both a. and b
    D : Conventional machining
    Q.no 42. Which of the following operation, we can’t perform on drilling machine?
    A : reaming
    B : tapping
    C : lapping
    D : Turning
    Q.no 43. This type of jig is employed on multi-spindle machines
    A : Index jig
    B : Universal jig
    C : Open type jig
    D : Multi-station jig
    Q.no 44. Crack in grinding wheel is developed due to
    A : High temperature developed at the contact of the wheel face and work
    B : Grinding hard work
    C : Low speed of wheel
    D : High speed of whee
    Q.no 45. Feed is measured in units of _ 25/12/2020 Page Page 10/13 A : length/revolution B : degree/revolution C : length D : velocity Q.no 46. The usual value of the point angle of a drill is A : 70° B : 100° C : 118° D : 130° Q.no 47. In Super finishing operation A : The work rotates, the abrasive block reciprocates B : The abrasive block rotates, the work reciprocates C : Both abrasive block and work rotates D : Both abrasive block and work reciprocates Q.no 48. A better machinable metal is one which gives A : lower chip-tool contact area and larger shear angle B : higher chip-tool contact area and smaller shear angle C : lower chip-tool contact area and smaller shear angle D : higher chip-tool contact area and larger shear angle Q.no 49. Number of the degree of freedom of a workpiece in space is equal to A : 10 B : 12 C : 16 D : 20 25/12/2020 Page Page 11/13 Q.no 50. The device, fed to the control unit of NC machine tool which sends the position command signals to sideway transmission elements of the machine, is called as A : controller B : tape C : feedback unit D : Leadscrew Q.no 51. Which are the suitable hole circles to index 87 divisions by compound indexing A : 37 and 49 B : 15 and 33 C : 23 and 29 D : 29 and 33 Q.no 52. In Abrasive jet machining, work piece material of removed by which of the following means? A : Vaporization B : Electro plating C : Mechanical abrasion D : Corrosion Q.no 53. The hardness of a grinding wheel is determined by the A : Hardness of abrasive grains B : Ability of the bond to retain abrasives C : Hardness of the bond D : Ability of the grinding wheel to penetrate the work piece Q.no 54. V-blocks (Vee locators) are used for clamping as well as locating when faces are inclined upto degrees A : 30 B : 12 C : 16 D : 3 Q.no 55. Which are the suitable hole circles to index 51 divisions by compound indexing 25/12/2020 Page Page 12/13 A : 17 and 18 B : 15 and 16 C : 16 and 18 D : 18 and 19 Q.no 56. What is the value of abrasive grain flow rate in Abrasive jet machining? A : 0.1 – 2 g/min B : 3 – 20 g/min C : 30 – 56 g/min D : 68 – 85 g/min Q.no 57. In the Taylor’s tool life equation, VT^n = C, the value of n=0.5. The tool life has a life of 180 minutes at a cutting speed of 18 m/min. If the tool life is reduced to 45 minutes, then the cutting speed will be A : 9 m/min B : 18 m/min C : 36 m/min D : 72 m/min Q.no 58. In an orthogonal cutting operation, chip thickness ration is 0.61 and rake angle is 20 degrees, then shear angle approximately equals to A : 23 Degrees B : 36 Degrees C : 43 Degrees D : 26 Degrees Q.no 59. Using the Taylor equation VT^n=c, calculate the percentage increase in tool life when the cutting speed is reduced is reduced by 50% (n=0.5 and c=400) A : 3 B : 4 C : 1 D : 0.5 Q.no 60. Lapping is not suitable for A : Tungsten 25/12/2020 Page Page 13/13 B : Lead C : Brass D : Copper 25/12/2020 https://sppu.wheebox.com/WAC-3/openanswers.obj https://sppu.wheebox.com/WAC-3/openanswers.obj 1/4 Answer for Question No 1. is a Answer for Question No 2. is b Answer for Question No 3. is d Answer for Question No 4. is b Answer for Question No 5. is d Answer for Question No 6. is b Answer for Question No 7. is a Answer for Question No 8. is c Answer for Question No 9. is b Answer for Question No 10. is a Answer for Question No 11. is b Answer for Question No 12. is a Answer for Question No 13. is b Answer for Question No 14. is d Answer for Question No 15. is d Answer for Question No 16. is d Answer for Question No 17. is a 25/12/2020 https://sppu.wheebox.com/WAC-3/openanswers.obj https://sppu.wheebox.com/WAC-3/openanswers.obj 2/4 Answer for Question No 18. is b Answer for Question No 19. is c Answer for Question No 20. is a Answer for Question No 21. is b Answer for Question No 22. is c Answer for Question No 23. is a Answer for Question No 24. is b Answer for Question No 25. is b Answer for Question No 26. is c Answer for Question No 27. is b Answer for Question No 28. is b Answer for Question No 29. is a Answer for Question No 30. is b Answer for Question No 31. is d Answer for Question No 32. is a Answer for Question No 33. is b Answer for Question No 34. is a Answer for Question No 35. is c 25/12/2020 https://sppu.wheebox.com/WAC-3/openanswers.obj https://sppu.wheebox.com/WAC-3/openanswers.obj 3/4 Answer for Question No 36. is b Answer for Question No 37. is a Answer for Question No 38. is b Answer for Question No 39. is a Answer for Question No 40. is a Answer for Question No 41. is b Answer for Question No 42. is d Answer for Question No 43. is d Answer for Question No 44. is d Answer for Question No 45. is a Answer for Question No 46. is c Answer for Question No 47. is a Answer for Question No 48. is a Answer for Question No 49. is b Answer for Question No 50. is b Answer for Question No 51. is d Answer for Question No 52. is c 25/12/2020 https://sppu.wheebox.com/WAC-3/openanswers.obj https://sppu.wheebox.com/WAC-3/openanswers.obj 4/4 Answer for Question No 53. is b Answer for Question No 54. is d Answer for Question No 55. is a Answer for Question No 56. is b Answer for Question No 57. is c Answer for Question No 58. is b Answer for Question No 59. is b Answer for Question No 60. is a 25/12/2020 Page Page 1/12 Seat No – Total number of questions : 60 11668 MANUFACTURING PROCESS II Time : 1hr Max Marks : 50 N.B 1) All questions are Multiple Choice Questions having single correct option. 2) Attempt any 50 questions out of 60. 3) Use of calculator is allowed. 4) Each question carries 1 Mark. 5) Specially abled students are allowed 20 minutes extra for examination. 6) Do not use pencils to darken answer. 7) Use only black/blue ball point pen to darken the appropriate circle. 8) No change will be allowed once the answer is marked on OMR Sheet. 9) Rough work shall not be done on OMR sheet or on question paper. 10) Darken ONLY ONE CIRCLE for each answer. Q.no 1. Which of the following code is used to specify Coolant ON in milling and drilling? A : M30 B : M07 C : M02 D : M09 Q.no 2. Work material tends to adhere or cold weld with the cutting edge in case of A : Continuous chips B : Discontinuous chips C : Segmented chips D : Continuous chips with built up edges Q.no 3. When cutting face of tool is 90° to the line of action of tool then it is known as A : Oblique cutting B : Orthogonal cutting 25/12/2020 Page Page 2/12 C : face cutting D : inverse cutting Q.no 4. Which of the following is un-conventional machining process? A : Grinding B : Milling C : Turning D : Electro chemical machining Q.no 5. Automatic tool change in CNC Machine code A : M05 B : M06 C : M07 D : M09 Q.no 6. Jigs are not used in A : Drilling B : Milling C : Reaming D : Tapping Q.no 7. Jigs and fixture A : decrease interchangeability of parts B : decreases rate of production C : decreases the accuracy of the parts. D : increases the accuracy of the parts. Q.no 8. The cutting speed for counter-boring should be _ that of drilling operation
    A : equal to
    B : less than
    C : greater than
    D : Not have any relation based on operation
    Q.no 9. _ is equal to half the diameter of the drill used. 25/12/2020 Page Page 3/12 A : feed B : depth of cut C : machining time D : Spndle Speed Q.no 10. Grinding wheel Tool signature consists of ___ elements
    A : 4
    B : 5
    C : 2
    D : 7
    Q.no 11. Lead angle in the single point cutting tool is the angle between
    A : the end cutting edge and the normal to the tool shank
    B : . the portion of side shank immediately below the side cutting edge and the line perpendicular to
    the base of the tool
    C : the tool face and the parallel to the base of the tool
    D : side cutting edge and the side of the tool shank
    Q.no 12. DNC stands for_____
    A : Digital Numerical control
    B : Direct Numerical Control
    C : Double Numerical Control
    D : Direct Numerical Code
    Q.no 13. The use of jigs and fixtures
    A : Facilitates deployment of less skilled labour for production
    B : Eliminates pre-machining operations like marking, measuring, laying out etc.
    C : reduced manual
    handling operation
    D : All of the above
    Q.no 14. Continuous chips with built up edge are formed during
    machining of
    A : brittle metals
    25/12/2020 Page
    Page 4/12
    B : ductile metals
    C : non metals
    D : hard metals
    Q.no 15. The jigs and fixtures reduces
    A : unskilled labor
    B : pre-machining operations like marking, measuring, laying out, etc.
    C : manual
    handling operations
    D : set-up time
    Q.no 16. In metal cutting operations, secondary deformation occurs at
    A : Chip-tool interface
    B : Below tool tip
    C : In uncut chip away from tool tip
    D : All of the above
    Q.no 17. When the metal is removed by erosion caused by rapidly recurring spark discharges
    between the tool and work, the process is known as
    A : Electrochemical machining
    B : Electro-discharge machining
    C : Ultrasonic machining
    D : Plasma Machining
    Q.no 18. What is broaching?
    A : A machining process used for increasing the size of the existing hole
    B : A machining process used for grinding hardened steel
    C : A machining process used for making intricate holes accurately
    D : A machining process for removal of a layer of material of desired width and depth
    Q.no 19. Which of the following is not element of Jigs and fixtures
    A : tool guiding frame and bushes
    B : base and body or frame
    C : cutter
    25/12/2020 Page
    Page 5/12
    D : indexing plates
    Q.no 20. In case of tool changer for CNC machines ATC means
    A : Anti Tool changer
    B : Automatic Tool Changer
    C : Automatic Turret Changer
    D : Automatic Tool Command
    Q.no 21. The angle between side cutting edge and end cutting edge is called as
    A : approach angle
    B : nose angle
    C : side relief angle
    D : end relief angle
    Q.no 22. The surface of the single point cutting tool on which the chips formed in cutting
    operation slide is called as
    A : flank
    B : heel
    C : face
    D : shank
    Q.no 23. Which of the following operation is performed to provide
    recess for bolt heads or nuts?
    A : Counterboring
    B : Spot Facing
    C : Tapping
    D : Countersinking
    Q.no 24. The time (in minutes) for a drilling a hole is given by t= (depth of hole+
    h)/Feed×RPM, where h is
    A : length of the drill
    B : drill diameter
    C : flute length of the drill
    D : cone height of the drill
    25/12/2020 Page
    Page 6/12
    Q.no 25. Which of the following does not come under the main components of ECM?
    A : Feed control system
    B : Work piece holding devices
    C : Electrolyte supply system
    D : Dielectric flushing
    Q.no 26. Any number of equal divisions can be obtained on milling machine by
    A : Direct Indexing
    B : Simple Indexing
    C : Compound Indexing
    D : Differential Indexing
    Q.no 27. The following holds the workpiece securely in a jig or fixture against the cutting
    forces
    A : Clamping device
    B : Guiding device
    C : Locating device
    D : Indexing device
    Q.no 28. In Electro discharge machining, materials with low melting point have which type of
    material removal rate?
    A : Very low
    B : Low
    C : Medium
    D : High
    Q.no 29. Which of the following is not true for radial drill?
    A : it can work with jobs, which are odd shaped
    B : the tubular column is very thick and has small diameters
    C : drill is mounted on drilling spindle
    D : none of the mentioned
    Q.no 30. What are the values of material removal rates in EDM?
    A : 0.001 to 0.1 mm3/min
    25/12/2020 Page
    Page 7/12
    B : 0.1 to 400 mm3/min
    C : 400 to 1000 mm3/min
    D : 1000 to 5000 mm3/min
    Q.no 31. Dielectric medium in EDM is acts as
    A : an electrolyte
    B : To make the medium conducting
    C : To decrease the material removal rate
    D : Insulator till reached to breakdown votlage
    Q.no 32. Which type of locator generally used to locate cylindrical job ?
    A : V- locator
    B : Nesting locator
    C : Pin locator
    D : Internal locator
    Q.no 33. Feed is measured in units of _ A : length/revolution B : degree/revolution C : length D : velocity Q.no 34. The correct sequence of the following parameters in order of their maximum to minimum influence on tool life is A : Feed rate, depth of cut, cutting speed B : Depth of cut, cutting speed, feed rate C : Cutting speed, feed rate, depth of cut D : Feed rate, cutting speed, depth of cut Q.no 35. The material removal rate in grinding operation is small due to A : only a small portion of abrasives are involved in cutting B : positive rake angle 25/12/2020 Page Page 8/12 C : zero rake angle D : material removal rate does not depend on the rake angle Q.no 36. Which of the following is basically a polishing operation? A : Soft grinding B : Lapping C : Honing D : Buffing Q.no 37. The point angle of a drill, for drilling stainless steel, is A : 90° B : 118° C : 135° D : 150° Q.no 38. The type of tool magazines used in CNC machines are A : Drum B : Pallet C : Box D : Turret Q.no 39. What are the values of currents used in EBM process? A : 1 to 20 mA B : 20 to 100 mA C : 100 to 200 mA D : 200 to 400 mA Q.no 40. The usual value of the helix angle of a drill is A : 20° B : 30° C : 45° D : 60° Q.no 41. Side milling cutter is an example of milling cutter.
    25/12/2020 Page
    Page 9/12
    A : arbor type
    B : shank type
    C : special type
    D : none of the mentioned
    Q.no 42. Lapping is an operation of________

    A : Making a cone-shaped enlargement of the end of a hole
    B : Smoothing and squaring the surface around a hole
    C : Sizing and finishing a small diameter hole
    D : Producing a hole by removing metal along the circumference of a hollow cutting tool
    Q.no 43. Part-programming mistakes can be avoided in
    A : NC (Numerical Control) machine tool
    B : CNC (Computer Numerical Control) machine tool
    C : Both a. and b
    D : Conventional machining
    Q.no 44. Dovetailing can be performed more effectively by _ milling machine. A : horizontal B : vertical C : can’t say anything D : none of the mentioned Q.no 45. The process of improving the cutting action of the grinding wheel is called A : Truing B : Dressing C : Facing D : Clearing Q.no 46. Larger the rake angle, power requirement for cutting the same material is A : Larger B : smaller 25/12/2020 Page Page 10/12 C : Same D : Not affected Q.no 47. The system which holds the workpiece against the cutting forces without causing any damage to it, is called ? A : Clamping B : Location C : indexing D : None of this Q.no 48. Cemented carbide tool of straight Co-WC is not suitable for steel cutting, because A : Steel has high hardness B : Cutting of steel generates very high temperature C : Steel contains Fe which reacts with C and promote diffusive wear D : Steel contains Fe which reacts with Co and promote abrasive wear Q.no 49. 3-2-1 principle is also known as ? A : 6 point location B : Principle of holding C : x-x-z location of principle D : Principle of clamping Q.no 50. In drilling aluminium, a drill with A : zero helix angle is used B : low helix angle is used C : high helix angle is used D : any helix angle can be used 25/12/2020 Page Page 11/12 Q.no 51. In Abrasive jet machining, work piece material of removed by which of the following means? A : Vaporization B : Electro plating C : Mechanical abrasion D : Corrosion Q.no 52. Frequency of tool’s oscillation in USM ranges between? A : 5-10 kHz B : 10-15 kHz C : 18-20 kHz D : 25-50 kHz Q.no 53. Which of the following range of numbers represents dense structure of abrasives? A : 0 to 7 B : 8 to 10 C : 10 to 12 D : 12 to 16 Q.no 54. Lapping is not suitable for A : Tungsten B : Lead C : Brass D : Copper Q.no 55. Calculate the cutting speed of drilling operation when diameter of drill is 10 mm and rotational speed of drill is 200 r.p.m. A : 6.283 m/min B : 3.142 m/min C : 8.362 m/min D : 10.216 m/min Q.no 56. Maching time for drilling four holes of 16 mm diameter each on a flange of 32 mm thickness with cutting speed 24m/min, feed 0.2 mm/rev using radial drilling machine is 25/12/2020 Page Page 12/12 A : 0.54 mins B : 2.54 mins C : 1.54 mins D : 0.74 mins Q.no 57. Which are the suitable hole circles from index plate 2 to index 69 divisions by compound indexing A : 21 and 23 B : 23 and 27 C : 23 and 29 D : 23 and 31 Q.no 58. Restricts the movement a cylinder placed in a V- block for 3-2-1 principle ? A : 1 (Translational) 2 (Rotary) B : 2 (Translational) 1 (Rotary) C : 2 (Translational) 2 (Rotary) D : 1 (Translational) 3 (Rotary) Q.no 59. Glazing in grinding wheels takes place when the A : Wheel is too hard or wheel revolves at a very high speed B : Wheel is too soft or wheel revolves at a very slow speed C : Wheel is too hard and wheel revolves at very slow speed D : Wheel is too soft and wheel revolves at a very high speed Q.no 60. The following is a quick acting clamp A : Hinged clamp B : Cam operated clamp C : Bridge clamp D : Edge clamp 25/12/2020 https://sppu.wheebox.com/WAC-3/openanswers.obj https://sppu.wheebox.com/WAC-3/openanswers.obj 1/4 Answer for Question No 1. is b Answer for Question No 2. is d Answer for Question No 3. is b Answer for Question No 4. is d Answer for Question No 5. is b Answer for Question No 6. is b Answer for Question No 7. is d Answer for Question No 8. is c Answer for Question No 9. is b Answer for Question No 10. is d Answer for Question No 11. is d Answer for Question No 12. is b Answer for Question No 13. is d Answer for Question No 14. is b Answer for Question No 15. is a Answer for Question No 16. is a Answer for Question No 17. is b 25/12/2020 https://sppu.wheebox.com/WAC-3/openanswers.obj https://sppu.wheebox.com/WAC-3/openanswers.obj 2/4 Answer for Question No 18. is d Answer for Question No 19. is c Answer for Question No 20. is b Answer for Question No 21. is b Answer for Question No 22. is c Answer for Question No 23. is a Answer for Question No 24. is d Answer for Question No 25. is d Answer for Question No 26. is c Answer for Question No 27. is a Answer for Question No 28. is d Answer for Question No 29. is b Answer for Question No 30. is b Answer for Question No 31. is d Answer for Question No 32. is a Answer for Question No 33. is a Answer for Question No 34. is c Answer for Question No 35. is a 25/12/2020 https://sppu.wheebox.com/WAC-3/openanswers.obj https://sppu.wheebox.com/WAC-3/openanswers.obj 3/4 Answer for Question No 36. is d Answer for Question No 37. is c Answer for Question No 38. is a Answer for Question No 39. is b Answer for Question No 40. is b Answer for Question No 41. is c Answer for Question No 42. is c Answer for Question No 43. is b Answer for Question No 44. is b Answer for Question No 45. is b Answer for Question No 46. is b Answer for Question No 47. is a Answer for Question No 48. is c Answer for Question No 49. is a Answer for Question No 50. is c Answer for Question No 51. is c Answer for Question No 52. is c 25/12/2020 https://sppu.wheebox.com/WAC-3/openanswers.obj https://sppu.wheebox.com/WAC-3/openanswers.obj 4/4 Answer for Question No 53. is a Answer for Question No 54. is a Answer for Question No 55. is a Answer for Question No 56. is c Answer for Question No 57. is c Answer for Question No 58. is c Answer for Question No 59. is a Answer for Question No 60. is b Seat No – Total number of questions : 60 1001438_T1 MANUFACTURING PROCESS II Time : 1hr Max Marks : 50 N.B 1) All questions are Multiple Choice Questions having single correct option. 2) Attempt any 50 questions out of 60. 3) Use of calculator is allowed. 4) Each question carries 1 Mark. 5) Specially abled students are allowed 20 minutes extra for examination. 6) Do not use pencils to darken answer. 7) Use only black/blue ball point pen to darken the appropriate circle. 8) No change will be allowed once the answer is marked on OMR Sheet. 9) Rough work shall not be done on OMR sheet or on question paper. 10) Darken ONLY ONE CIRCLE for each answer. Q.no 1. Which type of adjustment required for gap voltages in ECM? A : Continuous adjustment B : Discontinuous adjustment C : Periodic adjustment D : All of the mentioned Q.no 2. The main purpose of a boring operation, as compared to drilling, is to A : Drill a hole B : Finish the drilled hole C : Correct the hole D : Enlarge the existing hole Q.no 3. The operation of producing grooves around the periphery of a cylindrical or conical workpiece is called A : profile milling B : Gang milling C : Saw milling D : Helical milling Q.no 4. The operation of making a cone-shaped enlargement of the end of a hole is known as A : counter-sinking B : Counter-boring C : Treppaning D : Spot facing Q.no 5. Which of the following processes is generally applied for dentistry work like to drill fine holes of particular shape in teeth? A : Electrical Discharge Machining (EDM) B : Electron Beam Machining (EBM) C : Laser Beam Machining (LBM) D : Ultrasonic Machining (USM) Q.no 6. In centreless grinding, workpiece centre will be A : Above the line joining the two wheel centres B : Below the line joining the two wheel centres C : On the line joining the two wheel centres D : At the intersection of the line joining the wheel centres with the workpiece Q.no 7. Twist drills are made of A : High speed steel B : Mild Steel C : Stainless steel D : High Carbon Steel Q.no 8. Which of the following method is not used for holding tool in drilling machine? A : by a sleeve B : by four jaw chucks C : by a socket D : By tool holder Q.no 9. In ___ operation, the chip thickness is minimum at the beginning of
    the
    A : conventional milling
    B : climb milling
    C : face milling
    D : end milling
    Q.no 10. Use of tail stock in cylindrical grinding machine is
    A : To drive the work piece
    B : To give feed to the wheel head
    C : To provide Speed to
    grinding wheel
    D : To support the
    other end of the
    work piece
    Q.no 11. A dynamo-meter is a device used for the measurement of
    A : Chip thickness ratio
    B : Forces during metal cutting
    C : Wear of the cutting tool
    D : Deflection of the cutting tool
    Q.no 12. Grinding wheel Tool signature consists of _ elements
    A : 4
    B : 5
    C : 6
    D : 7
    Q.no 13. Lapping is an operation of______

    A : Making a cone-shaped enlargement
    of the end of a hole
    B : Smoothing and squaring the
    surface around a hole
    C : Sizing and finishing a
    small diameter hole
    D : Producing a hole by
    removing metal along
    the circumference of
    a hollow cutting tool
    Q.no 14. Which of the following process have the lowest metal removal rate?
    A : Drilling
    B : Milling
    C : Reaming
    D : Honning
    Q.no 15. In oblique cutting of metals, the cutting edge of the tools is.
    A : Perpendicular to the workpiece
    B : Perpendicular to the direction of
    tool travel
    C : Parallel to the direction of
    tool travel
    D : Inclined at an angle less
    than 90 to the direction of tool travel
    Q.no 16. When the metal is removed by erosion caused by rapidly recurring spark
    discharges between the tool and work, the process is known as
    A : Electrochemical machining
    B : Electro-discharge machining
    C : Ultrasonic machining
    D : None of these
    Q.no 17. A grinding wheel is said to be of _ if it holds the abrasive grains
    more securely
    A : Soft grade
    B : Medium grade
    C : Hard grade
    D : very soft grade
    Q.no 18. The hardness of a grinding wheel is determined by the
    A : Hardness of abrasive grains
    B : Ability of the bond to retain abrasives
    C : Hardness of the bond
    D : Ability of the grinding wheel to penetrate the work piece
    Q.no 19. Tool life in turning will decrease by maximum extent if we double the….
    A : Depth of cut
    B : Feed
    C : Cutting Velocity
    D : Tool rake angle
    Q.no 20. Which of the following symbol’s range of alphabet represent soft grain in
    grinding wheel?
    A : A – H
    B : I – P
    C : Q – T
    D : T – Z
    Q.no 21. Which of the following is a not a surface finishing process?
    A : Honing
    B : Buffing
    C : Lapping
    D : Turning
    Q.no 22. Shear angle varies with
    A : Cutting speed
    B : Feed
    C : Depth of cut
    D : Work piece materials and
    tool geometry
    Q.no 23. The angle between the face and flank of the single point cutting tool is
    known as
    A : Rake angle
    B : Clearance angle
    C : Lip angle
    D : Point angle
    Q.no 24. For which of the following operations, broaching can be used?
    A : Threading
    B : Grinding
    C : Spline cutting
    D : Increasing the size of the
    existing hole for a certain
    length
    Q.no 25. The usual value of the point angle of a drill is
    A : 70°
    B : 100°
    C : 118°
    D : 130°
    Q.no 26. Discontinuous chips are formed during machine of
    A : Brittle metals
    B : Ductile metals
    C : Soft metals
    D : Tough metals
    Q.no 27. In Abrasive jet machining, work piece material of removed by which of
    the following means?
    A : Vaporization
    B : Electro plating
    C : Mechanical abrasion
    D : Corrosion
    Q.no 28. Of the following properties of nozzle, which of them does not influence
    the MRR in AJM?
    A : Size
    B : Material
    C : Outside temperature
    D : Distance from work piece
    Q.no 29. A coarse grained grinding wheel is used to grind
    A : Soft and Hard materials
    B : Soft and ductile materials
    C : Hard Material
    D : Tough Material
    Q.no 30. Which of the following come under the main components of ECM?
    A : Feed control system
    B : Work piece holding devices
    C : Electrolyte supply system
    D : All of the mentioned
    Q.no 31. The tail stock set over required to turn a taper on the entire length of a
    workpiece having diameters D and d is
    A : D-d / (2L)
    B : D-d /(L)
    C : D-d /(2)
    D : D-d
    Q.no 32. Which of the following specified grinding wheel will have Aluminum
    oxide abrasive?
    A : Z 46 K 5 B 17
    B : C 600 K 5 B 17
    C : C 8 K 5 B 17
    D : A 80 K 5 B 17
    Q.no 33. It is desired to perform the operations like drilling, reaming, counterboring etc. on a work piece. Which of the following machine will be used?
    A : Sensitive drilling machine
    B : Radial drilling machine
    C : Gang drilling machine
    D : Multiple spindle drilling
    machine
    Q.no 34. In machining operation, Uncut chip thickness t0= 0.8 mm and Chip
    thickness tc=1.2 mm. The correct option for the chip thickness ratio (r) is
    A : 0.4
    B : 0.66
    C : 0.84
    D : 1.5
    Q.no 35. What is the general life of Tungsten carbide material nozzle in AJM?
    A : 1 – 8 hrs
    B : 2 – 5 hrs
    C : 10 – 15 hrs
    D : 25 – 40 hrs
    Q.no 36. Amplitude of oscillation of tool in USM ranges between?
    A : 0.1-10 μm
    B : 10-40 μm
    C : 50-100 μm
    D : 100-1000 μm
    Q.no 37. Which one of the following is a hybrid non-conventional machinig
    process
    A : ECM
    B : EDM
    C : AWJM
    D : LBM
    Q.no 38. Which of the following is not a media of energy transfer on which the
    advanced machining processes are classified?
    A : Reactive atmosphere
    B : Electrons
    C : Electrolyte
    D : Chemical ablation
    Q.no 39. What is the value of abrasive grain flow rate in Abrasive jet machining?
    A : 0.1 – 2 g/min
    B : 3 – 20 g/min
    C : 30 – 56 g/min
    D : 68 – 85 g/min
    Q.no 40. Find the angle at which the compound rest should be set up to turn taper
    on the workpiece having a length of 20mm, larger diameter 45mm and the
    smaller diameter 30mm.
    A : 2 Degree 9 Minutes
    B : 3 Degree 9 Minutes
    C : 4 Degree 9 Minutes
    D : 5 Degree 9 Minutes
    Q.no 41. If n=number of divisions required, then find the number of holes to be
    moved in direct indexing
    A : 12/n
    B : 24/n
    C : 40/n
    D : 120/n
    Q.no 42. Grinding wheel is specified as “A 46 K 5 B 17”. Grain size of a wheel will be
    A : Coarse
    B : Medium
    C : Fine
    D : Very Fine
    Q.no 43. In an orthogonal cutting the depth of cut is halved and the feed is double.
    If the chip thickness ratio is unaffected with the changed cutting conditions the
    actual chip thickness will be
    A : Doubled
    B : Halved
    C : Quadrupled
    D : unchanged
    Q.no 44. In AJM, surface roughness value will vary between which values?
    A : 0.01 – 0.10 μm
    B : 0.15 – 1.5 μm
    C : 2.0 – 5.0 μm
    D : 7.0 – 10.0 μm
    Q.no 45. Which one of the following process is worked on principle of Mechanical
    errosion
    A : AJM
    B : EDM
    C : ECM
    D : PAM
    Q.no 46. At high cutting speed, high temperature at tool-chip interface is caused
    by
  37. Heat generation rate increases with an increase in cutting speed
  38. Friction coefficient (μ) decreases with an increase in cutting speed
  39. The time required to transfer the heat decreases with an increase in cutting
    speed
  40. Localization of heat takes place with an increase in cutting speed
    A : 1,3 &4
    B : 1,2,3 &4
    C : 1,2,& 3
    D : 2,3 &4
    Q.no 47. Which one of the following is not a hybrid non-conventional machinig
    process
    A : ECDM
    B : AWJM
    C : Ultrasonic assisted EDM
    D : EBM
    Q.no 48. Frequency of tool’s oscillation in USM ranges between?
    A : 5-10 kHz
    B : 10-15 kHz
    C : 18-20 kHz
    D : 25-50 kHz
    Q.no 49. In Abrasive jet machining, what may be the size of the abrasive grains
    used?
    A : 10 – 40 μm
    B : 50 – 100 μm
    C : 100 – 150 μm
    D : 200 – 300 μm
    Q.no 50. Which one of the following process is worked on principle of electrolysis
    using eletrolyte
    A : EDM
    B : USM
    C : AJM
    D : ECM
    Q.no 51. In orthogonal cutting feed is 0.2 mm/rev, Chip thickness is 0.3 mm, Rake
    angle is 15 degrees. Then the shear plane angle in degrees is
    A : 27.9
    B : 17.9
    C : 37.9
    D : 47.9
    Q.no 52. Calculate the cutting speed of drilling operation when diameter of drill is
    10 mm and rotational speed of drill is 200 r.p.m.
    A : 6.283 m/min
    B : 3.142 m/min
    C : 8.362 m/min
    D : 10.216 m/min
    Q.no 53. In Face Milling,What is the feed per tooth when the main axis spindle
    speed is 500 rpm, number of insert is 10, and table feed is 500mm/min
    A : 0.1 mm/tooth
    B : 0.7 mm/tooth
    C : 1 mm/tooth
    D : 7 mm/tooth
    Q.no 54. A shaft 1200 mm long has a taper of 1:100 for a length of 600 mm. The
    maximum diameter of the shaft to be 80 mm. Determine the minimum diameter
    of staft and amount of setover
    A : 78 mm & 22 mm
    B : 60 mm & 20 mm
    C : 65 mm & 15 mm
    D : 68 mm & 12 mm
    Q.no 55. In the Taylor’s tool life equation, VT^n = C, the value of n=0.5. The tool life
    has a life of 180 minutes at a cutting speed of 18 m/min. If the tool life is reduced
    to 45 minutes, then the cutting speed will be
    A : 9 m/min
    B : 18 m/min
    C : 36 m/min
    D : 72 m/min
    Q.no 56. The time required for machining a workpiece 50 mm dianeter 350 mm
    length, turn all over in four passes. The approach length is 12 mm, Overtravel
    10mm, the feed = 0.5 mm/rev, and cutting speed is 35m/min.
    A : 13.016 min
    B : 10.016 min
    C : 11.016 min
    D : 12.016 min
    Q.no 57. In orthogonal turning of MS bar of 65 mm diameter machined on a lathe
    with a feed of 0.8 mm was used. A continuous chip of 1.4 mm thickness was
    removed at a rotational speed of 85 rpm. The Chip thickness ratio, Chip reduction
    ratio and Total length of the Chip in One Minute respectively is
    A : 0.5714, 1.75, 9918 mm
    B : 1.75, 0.5714, 9915 mm
    C : 1.75, 9999 mm, 05714,
    D : 57.14, 1.75, 9999 mm
    Q.no 58. In an orthogonal cutting if the feed is 1.25 mm/rev, the chip thickness
    after cutting is 2 mm, then the chip thickness ratio and shear angle (for rake
    angle 10 Degrees) respectively are
    A : 0.525, 36.62 Degrees
    B : 0.625, 34.62 Degrees
    C : 0.425, 36.42 Degrees
    D : 0.325, 34.62 Degrees
    Q.no 59. In face milling,What is the cutting speed when main axis spindle speed is
    350 rpm and the cutter diameter is 125 mm ?
    A : 137.4 m/min
    B : 142 m/min
    C : 150.2 m/min
    D : 130 m/min
    Q.no 60. A tapered pin is to be prepared on a lathe machine. If the larger diameter
    is 90 mm, smaller diameter is 80 mm, length of the pin is 100 mm, Find the angle
    of taper at which the compound rest to be swivelled around
    A : 3 Degrees and 51 Minutes
    B : 2 Degrees and 15 Minutes
    C : 4 Degrees and 51 Minutes
    D : 2 Degrees and 51 Minutes
    Q.no 1. Removing dull grains in order to make grinding wheel sharp is known as
    A : Loading
    B : Glazing
    C : Dressing
    D : Trueing
    Q.no 2. If a cutting tool is designed as 8°-14°-6°-8°-8°-19°-1mm what is the side Rake
    angle of the tool
    A : 14°
    B : 19°
    C : 6°
    D : 8°
    Q.no 3. In Electro discharge machining, materials with low melting point have
    which type of material removal rate?
    A : Very low
    B : Low
    C : Medium
    D : High
    Q.no 4. Burnishing is a process of
    A : Cold working
    B : Hot working
    C : Press working
    D : Metal Cutting
    Q.no 5. Steady rest is
    A : An additional support provided for long jobs
    B : Used while turning unsymmetrical
    objects
    C : Used during Plain cutting only
    D : Used when a lathe is
    subject to vibrations
    Q.no 6. As the abrasive flow rate increases, what happens to the volumetric
    removal rate in AJM?
    A : Increases
    B : Decreases
    C : Increase and then decrease
    D : Decrease and then increase
    Q.no 7. How is material removed in Electro discharge machining?
    A : Melt and evaporate
    B : Corrode and break
    C : Mechanical erosion takes place
    D : None of the mentioned
    Q.no 8. In which process the material is removed due to the action of abrasive
    grains?
    A : Electron Beam Machining (EBM)
    B : Ultrasonic Machining (USM)
    C : Laser Beam Machining (LBM)
    D : Electrical Discharge Machining (EDM)
    Q.no 9. The tool life is said to be over if
    A : Poor surface finish is obtained
    B : There is sudden increase in cutting
    forces and power consumption
    C : Overheating and fuming due to
    heat of friction starts
    D : All of the above
    Q.no 10. In a milling operation, two side milling cutters are mounted with a
    desired distance between them so that both sides of a workpiece can be milled
    simultaneously. This set up is called
    A : Gang milling
    B : Straddle milling
    C : Face milling
    D : Side milling
    Q.no 11. Which of the following range of numbers represents dense structure of
    abrasives?
    A : 0-7
    B : 8-10
    C : 10-12
    D : 12-16
    Q.no 12. Carbide tipped tools usually have
    A : Negative rake angle
    B : Positive rake angle
    C : Any rake angle
    D : No rake angle
    Q.no 13. Feed control system is responsible for which action in ECM?
    A : Giving feed to tool
    B : Electrolyte supply
    C : Power supply
    D : None of the mentioned
    Q.no 14. Which of the following material/s cannot be used for making of nozzle in
    Abrasive jet machining?
    A : Tungsten Carbide
    B : Steel alloy
    C : Sapphire
    D : Synthetic sapphire
    Q.no 15. If l=length of travel of the drill in mm, n=rpm of the drill, s= feed per
    revolution of the drill in mm. Then machining time can be given as_____
    A : (ln)/s B : (ls)/n
    C : l/(n*s)
    D : (1+n)/s
    Q.no 16. A half nut is
    A : Damaged nut
    B : Nut manufactured in parts
    C : Nut with half the standard pitch
    D : Mechanism that locks the
    lathe carriage to the load
    screw for thread cutting
    Q.no 17. In centerless grinders, the regulating wheel is inclined at
    A : 0° to 8°
    B : 9° to 15°
    C : 16° to 20°
    D : 21° to 25°
    Q.no 18. A grinding ratio of 200 implies that the
    A : Grinding wheel wears 200 times the
    volume of the material removed
    B : grinding wheel wears 0.005 times
    the volume of the material removed
    C : aspect ratio of abrasive
    particles used in the
    grinding wheel is 200
    D : ratio of volume
    of abrasive particle
    to that of grinding
    wheel is 200
    Q.no 19. Cast iron during machining produces
    A : Continuous chips
    B : Dis-Continuous chips
    C : Continuous chips with
    built-up-edge
    D : None of these
    Q.no 20. Which of the following process has highest rate of metal removal
    A : Electric Discharge Machining (EDM)
    B : Electro-Chemical Machining (ECM)
    C : Ultrasonic Machining (USM)
    D : Laser Beam Machining (LBM)
    Q.no 21. The operation of making a cone-shaped enlargement of the end of a hole
    is known as
    A : counter-sinking
    B : Counter-boring
    C : Treppaning
    D : Spot facing
    Q.no 22. Twist drills are made of
    A : High speed steel
    B : Mild Steel
    C : Stainless steel
    D : High Carbon Steel
    Q.no 23. Which of the following come under the main components of ECM?
    A : Feed control system
    B : Work piece holding devices
    C : Electrolyte supply system
    D : All of the mentioned
    Q.no 24. The usual value of the point angle of a drill is
    A : 70°
    B : 100°
    C : 118°
    D : 130°
    Q.no 25. A grinding wheel is said to be of if it holds the abrasive grains
    more securely
    A : Soft grade
    B : Medium grade
    C : Hard grade
    D : very soft grade
    Q.no 26. Which of the following method is not used for holding tool in drilling
    machine?
    A : by a sleeve
    B : by four jaw chucks
    C : by a socket
    D : By tool holder
    Q.no 27. When the metal is removed by erosion caused by rapidly recurring spark
    discharges between the tool and work, the process is known as
    A : Electrochemical machining
    B : Electro-discharge machining
    C : Ultrasonic machining
    D : None of these
    Q.no 28. In centreless grinding, workpiece centre will be
    A : Above the line joining the two
    wheel centres
    B : Below the line joining the two
    wheel centres
    C : On the line joining the two
    wheel centres
    D : At the intersection of the
    line joining the wheel
    centres with the workpiece
    Q.no 29. The hardness of a grinding wheel is determined by the
    A : Hardness of abrasive grains
    B : Ability of the bond to retain abrasives
    C : Hardness of the bond
    D : Ability of the grinding wheel to penetrate the work piece
    Q.no 30. Which of the following process have the lowest metal removal rate?
    A : Drilling
    B : Milling
    C : Reaming
    D : Honning
    Q.no 31. The swing diameter over the bed is………the height of the center
    measured from the bed of the lathe
    A : Equal to
    B : Twice
    C : Thrice
    D : One -half
    Q.no 32. The useful life of a HSS tool machining mild steel at18 m/min is 3 hr.
    Calculate the tool life when the tool operate at 24 m/min.
    A : 12 min
    B : 18 min
    C : 20 min
    D : 24 min
    Q.no 33. Which of the following specified grinding wheel will have Silicon carbide
    abrasive?
    A : Z 46 K 5 B 17
    B : C 600 K 5 B 17
    C : A 8 K 5 B 17
    D : A 80 K 5 B 17
    Q.no 34. It is desired to perform the operations like drilling, reaming, counterboring etc. on a work piece. Which of the following machine will be used?
    A : Sensitive drilling machine
    B : Radial drilling machine
    C : Gang drilling machine
    D : Multiple spindle drilling
    machine
    Q.no 35. In Abrasive jet machining, what may be the size of the abrasive grains
    used?
    A : 10 – 40 μm
    B : 50 – 100 μm
    C : 100 – 150 μm
    D : 200 – 300 μm
    Q.no 36. What is the value of abrasive grain flow rate in Abrasive jet machining?
    A : 0.1 – 2 g/min
    B : 3 – 20 g/min
    C : 30 – 56 g/min
    D : 68 – 85 g/min
    Q.no 37. Grinding wheel is specified as “A 46 K 5 B 17”. Grain size of a wheel will be
    A : Coarse
    B : Medium
    C : Fine
    D : Very Fine
    Q.no 38. What is the general life of Tungsten carbide material nozzle in AJM?
    A : 1 – 8 hrs
    B : 2 – 5 hrs
    C : 10 – 15 hrs
    D : 25 – 40 hrs
    Q.no 39. In machining operation, Uncut chip thickness t0= 0.8 mm and Chip
    thickness tc=1.2 mm. The correct option for the chip thickness ratio (r) is
    A : 0.4
    B : 0.66
    C : 0.84
    D : 1.5
    Q.no 40. Which one of the following process is worked on principle of Mechanical
    errosion
    A : AJM
    B : EDM
    C : ECM
    D : PAM
    Q.no 41. Amplitude of oscillation of tool in USM ranges between?
    A : 0.1-10 μm
    B : 10-40 μm
    C : 50-100 μm
    D : 100-1000 μm
    Q.no 42. Which one of the following process is worked on principle of electrolysis
    using eletrolyte
    A : EDM
    B : USM
    C : AJM
    D : ECM
    Q.no 43. In an orthogonal cutting the depth of cut is halved and the feed is double.
    If the chip thickness ratio is unaffected with the changed cutting conditions the
    actual chip thickness will be
    A : Doubled
    B : Halved
    C : Quadrupled
    D : unchanged
    Q.no 44. The tail stock set over required to turn a taper on the entire length of a
    workpiece having diameters D and d is
    A : D-d / (2L)
    B : D-d /(L)
    C : D-d /(2)
    D : D-d
    Q.no 45. Which one of the following is not a hybrid non-conventional machinig
    process
    A : ECDM
    B : AWJM
    C : Ultrasonic assisted EDM
    D : EBM
    Q.no 46. In AJM, surface roughness value will vary between which values?
    A : 0.01 – 0.10 μm
    B : 0.15 – 1.5 μm
    C : 2.0 – 5.0 μm
    D : 7.0 – 10.0 μm
    Q.no 47. Frequency of tool’s oscillation in USM ranges between?
    A : 5-10 kHz
    B : 10-15 kHz
    C : 18-20 kHz
    D : 25-50 kHz
    Q.no 48. Which one of the following is a hybrid non-conventional machinig
    process
    A : ECM
    B : EDM
    C : AWJM
    D : LBM
    Q.no 49. Which of the following is not a media of energy transfer on which the
    advanced machining processes are classified?
    A : Reactive atmosphere
    B : Electrons
    C : Electrolyte
    D : Chemical ablation
    Q.no 50. If n=number of divisions required, then find the number of holes to be
    moved in direct indexing
    A : 12/n
    B : 24/n
    C : 40/n
    D : 120/n
    Q.no 51. In a drilling operation using a twist drill, the lip angle is 120 degree
    (standard), the spindle speed is 300 rpm, the feed is 0.2 mm/rev and the drill
    diameter is 10 mm,calculate machining time to drill a hole of 30 mm long ?
    A : 0.88 min
    B : 0.54 min
    C : 1.2 min
    D : 3 min
    Q.no 52. A mild steel material is being turn for 50 mm length with a feed rate of
    0.15 mm/rev and spindle speed of 1400 rpm. The time required to cut the material
    in miniutes is
    A : 0.13
    B : 0.23
    C : 0.33
    D : 0.43
    Q.no 53. Time required for one complete cut on the piece of work 350 mm long
    and 50 mm in diameter. the cutting speed is 35 m/min and feed is 0.5 mm/rev.
    A : 2.1 Min
    B : 3.1 Min
    C : 3.5 Min
    D : 3.6 Min
    Q.no 54. Using the Taylor equation VT^n=c, calculate the percentage increase in
    tool life when the cutting speed is reduced is reduced by 50% (n=0.5 and c=400)
    A : 300%
    B : 400%
    C : 100%
    D : 200%
    Q.no 55. A tapered pin is to be prepared on a lathe machine. If the larger diameter
    is 90 mm, smaller diameter is 80 mm, length of the pin is 100 mm, Find the angle
    of taper at which the compound rest to be swivelled around
    A : 3 Degrees and 51 Minutes
    B : 2 Degrees and 15 Minutes
    C : 4 Degrees and 51 Minutes
    D : 2 Degrees and 51 Minutes
    Q.no 56. In Face Milling,What is the feed per tooth when the main axis spindle
    speed is 500 rpm, number of insert is 10, and table feed is 500mm/min
    A : 0.1 mm/tooth
    B : 0.7 mm/tooth
    C : 1 mm/tooth
    D : 7 mm/tooth
    Q.no 57. In face milling,What is the cutting speed when main axis spindle speed is
    350 rpm and the cutter diameter is 125 mm ?
    A : 137.4 m/min
    B : 142 m/min
    C : 150.2 m/min
    D : 130 m/min
    Q.no 58. The time required for machining a workpiece 50 mm dianeter 350 mm
    length, turn all over in four passes. The approach length is 12 mm, Overtravel
    10mm, the feed = 0.5 mm/rev, and cutting speed is 35m/min.
    A : 13.016 min
    B : 10.016 min
    C : 11.016 min
    D : 12.016 min
    Q.no 59. In orthogonal turning of MS bar of 65 mm diameter machined on a lathe
    with a feed of 0.8 mm was used. A continuous chip of 1.4 mm thickness was
    removed at a rotational speed of 85 rpm. The Chip thickness ratio, Chip reduction
    ratio and Total length of the Chip in One Minute respectively is
    A : 0.5714, 1.75, 9918 mm
    B : 1.75, 0.5714, 9915 mm
    C : 1.75, 9999 mm, 05714,
    D : 57.14, 1.75, 9999 mm
    Q.no 60. Calculate the cutting speed of drilling operation when diameter of drill is
    10 mm and rotational speed of drill is 200 r.p.m.
    A : 6.283 m/min
    B : 3.142 m/min
    C : 8.362 m/min
    D : 10.216 m/min
    Q.no 1. In _
    operation, the chip thickness is minimum at the beginning of
    the
    A : conventional milling
    B : climb milling
    C : face milling
    D : end milling
    Q.no 2. Lapping is an operation of_________
    A : Making a cone-shaped enlargement
    of the end of a hole
    B : Smoothing and squaring the
    surface around a hole
    C : Sizing and finishing a
    small diameter hole
    D : Producing a hole by
    removing metal along
    the circumference of
    a hollow cutting tool
    Q.no 3. In which process the material is removed due to the action of abrasive
    grains?
    A : Electron Beam Machining (EBM)
    B : Ultrasonic Machining (USM)
    C : Laser Beam Machining (LBM)
    D : Electrical Discharge Machining (EDM)
    Q.no 4. A coarse grained grinding wheel is used to grind
    A : Soft and Hard materials
    B : Soft and ductile materials
    C : Hard Material
    D : Tough Material
    Q.no 5. The angle between the face and flank of the single point cutting tool is
    known as
    A : Rake angle
    B : Clearance angle
    C : Lip angle
    D : Point angle
    Q.no 6. In Electro discharge machining, materials with low melting point have
    which type of material removal rate?
    A : Very low
    B : Low
    C : Medium
    D : High
    Q.no 7. In oblique cutting of metals, the cutting edge of the tools is.
    A : Perpendicular to the workpiece
    B : Perpendicular to the direction of
    tool travel
    C : Parallel to the direction of
    tool travel
    D : Inclined at an angle less
    than 90 to the direction of tool travel
    Q.no 8. Use of tail stock in cylindrical grinding machine is
    A : To drive the work piece
    B : To give feed to the wheel head
    C : To provide Speed to
    grinding wheel
    D : To support the
    other end of the
    work piece
    Q.no 9. As the abrasive flow rate increases, what happens to the volumetric
    removal rate in AJM?
    A : Increases
    B : Decreases
    C : Increase and then decrease
    D : Decrease and then increase
    Q.no 10. Which of the following processes is generally applied for dentistry work
    like to drill fine holes of particular shape in teeth?
    A : Electrical Discharge Machining (EDM)
    B : Electron Beam Machining (EBM)
    C : Laser Beam Machining (LBM)
    D : Ultrasonic Machining (USM)
    Q.no 11. Steady rest is
    A : An additional support provided for long jobs
    B : Used while turning unsymmetrical
    objects
    C : Used during Plain cutting only
    D : Used when a lathe is
    subject to vibrations
    Q.no 12. In a milling operation, two side milling cutters are mounted with a
    desired distance between them so that both sides of a workpiece can be milled
    simultaneously. This set up is called
    A : Gang milling
    B : Straddle milling
    C : Face milling
    D : Side milling
    Q.no 13. Which of the following is a not a surface finishing process?
    A : Honing
    B : Buffing
    C : Lapping
    D : Turning
    Q.no 14. Discontinuous chips are formed during machine of
    A : Brittle metals
    B : Ductile metals
    C : Soft metals
    D : Tough metals
    Q.no 15. The operation of producing grooves around the periphery of a cylindrical
    or conical workpiece is called
    A : profile milling
    B : Gang milling
    C : Saw milling
    D : Helical milling
    Q.no 16. In Abrasive jet machining, work piece material of removed by which of
    the following means?
    A : Vaporization
    B : Electro plating
    C : Mechanical abrasion
    D : Corrosion
    Q.no 17. How is material removed in Electro discharge machining?
    A : Melt and evaporate
    B : Corrode and break
    C : Mechanical erosion takes place
    D : None of the mentioned
    Q.no 18. Tool life in turning will decrease by maximum extent if we double the….
    A : Depth of cut
    B : Feed
    C : Cutting Velocity
    D : Tool rake angle
    Q.no 19. Removing dull grains in order to make grinding wheel sharp is known as
    A : Loading
    B : Glazing
    C : Dressing
    D : Trueing
    Q.no 20. A dynamo-meter is a device used for the measurement of
    A : Chip thickness ratio
    B : Forces during metal cutting
    C : Wear of the cutting tool
    D : Deflection of the cutting tool
    Q.no 21. Of the following properties of nozzle, which of them does not influence
    the MRR in AJM?
    A : Size
    B : Material
    C : Outside temperature
    D : Distance from work piece
    Q.no 22. Which of the following symbol’s range of alphabet represent soft grain in
    grinding wheel?
    A : A – H
    B : I – P
    C : Q – T
    D : T – Z
    Q.no 23. Grinding wheel Tool signature consists of __ elements
    A : 4
    B : 5
    C : 6
    D : 7
    Q.no 24. If a cutting tool is designed as 8°-14°-6°-8°-8°-19°-1mm what is the side
    Rake angle of the tool
    A : 14°
    B : 19°
    C : 6°
    D : 8°
    Q.no 25. Which type of adjustment required for gap voltages in ECM?
    A : Continuous adjustment
    B : Discontinuous adjustment
    C : Periodic adjustment
    D : All of the mentioned
    Q.no 26. For which of the following operations, broaching can be used?
    A : Threading
    B : Grinding
    C : Spline cutting
    D : Increasing the size of the
    existing hole for a certain
    length
    Q.no 27. The main purpose of a boring operation, as compared to drilling, is to
    A : Drill a hole
    B : Finish the drilled hole
    C : Correct the hole
    D : Enlarge the existing hole
    Q.no 28. Shear angle varies with
    A : Cutting speed
    B : Feed
    C : Depth of cut
    D : Work piece materials and
    tool geometry
    Q.no 29. Burnishing is a process of
    A : Cold working
    B : Hot working
    C : Press working
    D : Metal Cutting
    Q.no 30. The tool life is said to be over if
    A : Poor surface finish is obtained
    B : There is sudden increase in cutting
    forces and power consumption
    C : Overheating and fuming due to
    heat of friction starts
    D : All of the above
    Q.no 31. At high cutting speed, high temperature at tool-chip interface is caused
    by
  41. Heat generation rate increases with an increase in cutting speed
  42. Friction coefficient (μ) decreases with an increase in cutting speed
  43. The time required to transfer the heat decreases with an increase in cutting
    speed
  44. Localization of heat takes place with an increase in cutting speed
    A : 1,3 &4
    B : 1,2,3 &4
    C : 1,2,& 3
    D : 2,3 &4
    Q.no 32. Which of the following specified grinding wheel will have Silicon carbide
    abrasive?
    A : Z 46 K 5 B 17
    B : C 600 K 5 B 17
    C : A 8 K 5 B 17
    D : A 80 K 5 B 17
    Q.no 33. Which of the following specified grinding wheel will have Aluminum
    oxide abrasive?
    A : Z 46 K 5 B 17
    B : C 600 K 5 B 17
    C : C 8 K 5 B 17
    D : A 80 K 5 B 17
    Q.no 34. The useful life of a HSS tool machining mild steel at18 m/min is 3 hr.
    Calculate the tool life when the tool operate at 24 m/min.
    A : 12 min
    B : 18 min
    C : 20 min
    D : 24 min
    Q.no 35. The swing diameter over the bed is………the height of the center
    measured from the bed of the lathe
    A : Equal to
    B : Twice
    C : Thrice
    D : One -half
    Q.no 36. Find the angle at which the compound rest should be set up to turn taper
    on the workpiece having a length of 20mm, larger diameter 45mm and the
    smaller diameter 30mm.
    A : 2 Degree 9 Minutes
    B : 3 Degree 9 Minutes
    C : 4 Degree 9 Minutes
    D : 5 Degree 9 Minutes
    Q.no 37. Which one of the following is a hybrid non-conventional machinig
    process
    A : ECM
    B : EDM
    C : AWJM
    D : LBM
    Q.no 38. In Abrasive jet machining, what may be the size of the abrasive grains
    used?
    A : 10 – 40 μm
    B : 50 – 100 μm
    C : 100 – 150 μm
    D : 200 – 300 μm
    Q.no 39. If n=number of divisions required, then find the number of holes to be
    moved in direct indexing
    A : 12/n
    B : 24/n
    C : 40/n
    D : 120/n
    Q.no 40. In an orthogonal cutting the depth of cut is halved and the feed is double.
    If the chip thickness ratio is unaffected with the changed cutting conditions the
    actual chip thickness will be
    A : Doubled
    B : Halved
    C : Quadrupled
    D : unchanged
    Q.no 41. It is desired to perform the operations like drilling, reaming, counterboring etc. on a work piece. Which of the following machine will be used?
    A : Sensitive drilling machine
    B : Radial drilling machine
    C : Gang drilling machine
    D : Multiple spindle drilling
    machine
    Q.no 42. Amplitude of oscillation of tool in USM ranges between?
    A : 0.1-10 μm
    B : 10-40 μm
    C : 50-100 μm
    D : 100-1000 μm
    Q.no 43. What is the value of abrasive grain flow rate in Abrasive jet machining?
    A : 0.1 – 2 g/min
    B : 3 – 20 g/min
    C : 30 – 56 g/min
    D : 68 – 85 g/min
    Q.no 44. Which one of the following process is worked on principle of electrolysis
    using eletrolyte
    A : EDM
    B : USM
    C : AJM
    D : ECM
    Q.no 45. The tail stock set over required to turn a taper on the entire length of a
    workpiece having diameters D and d is
    A : D-d / (2L)
    B : D-d /(L)
    C : D-d /(2)
    D : D-d
    Q.no 46. In machining operation, Uncut chip thickness t0= 0.8 mm and Chip
    thickness tc=1.2 mm. The correct option for the chip thickness ratio (r) is
    A : 0.4
    B : 0.66
    C : 0.84
    D : 1.5
    Q.no 47. Frequency of tool’s oscillation in USM ranges between?
    A : 5-10 kHz
    B : 10-15 kHz
    C : 18-20 kHz
    D : 25-50 kHz
    Q.no 48. Which one of the following process is worked on principle of Mechanical
    errosion
    A : AJM
    B : EDM
    C : ECM
    D : PAM
    Q.no 49. What is the general life of Tungsten carbide material nozzle in AJM?
    A : 1 – 8 hrs
    B : 2 – 5 hrs
    C : 10 – 15 hrs
    D : 25 – 40 hrs
    Q.no 50. Which one of the following is not a hybrid non-conventional machinig
    process
    A : ECDM
    B : AWJM
    C : Ultrasonic assisted EDM
    D : EBM
    Q.no 51. A shaft 1200 mm long has a taper of 1:100 for a length of 600 mm. The
    maximum diameter of the shaft to be 80 mm. Determine the minimum diameter
    of staft and amount of setover
    A : 78 mm & 22 mm
    B : 60 mm & 20 mm
    C : 65 mm & 15 mm
    D : 68 mm & 12 mm
    Q.no 52. In an orthogonal cutting if the feed is 1.25 mm/rev, the chip thickness
    after cutting is 2 mm, then the chip thickness ratio and shear angle (for rake
    angle 10 Degrees) respectively are
    A : 0.525, 36.62 Degrees
    B : 0.625, 34.62 Degrees
    C : 0.425, 36.42 Degrees
    D : 0.325, 34.62 Degrees
    Q.no 53. In a drilling operation using a twist drill, the lip angle is 120 degree
    (standard), the spindle speed is 300 rpm, the feed is 0.2 mm/rev and the drill
    diameter is 10 mm,calculate machining time to drill a hole of 30 mm long ?
    A : 0.88 min
    B : 0.54 min
    C : 1.2 min
    D : 3 min
    Q.no 54. A mild steel material is being turn for 50 mm length with a feed rate of
    0.15 mm/rev and spindle speed of 1400 rpm. The time required to cut the material
    in miniutes is
    A : 0.13
    B : 0.23
    C : 0.33
    D : 0.43
    Q.no 55. In orthogonal cutting feed is 0.2 mm/rev, Chip thickness is 0.3 mm, Rake
    angle is 15 degrees. Then the shear plane angle in degrees is
    A : 27.9
    B : 17.9
    C : 37.9
    D : 47.9
    Q.no 56. Time required for one complete cut on the piece of work 350 mm long
    and 50 mm in diameter. the cutting speed is 35 m/min and feed is 0.5 mm/rev.
    A : 2.1 Min
    B : 3.1 Min
    C : 3.5 Min
    D : 3.6 Min
    Q.no 57. In the Taylor’s tool life equation, VT^n = C, the value of n=0.5. The tool life
    has a life of 180 minutes at a cutting speed of 18 m/min. If the tool life is reduced
    to 45 minutes, then the cutting speed will be
    A : 9 m/min
    B : 18 m/min
    C : 36 m/min
    D : 72 m/min
    Q.no 58. Using the Taylor equation VT^n=c, calculate the percentage increase in
    tool life when the cutting speed is reduced is reduced by 50% (n=0.5 and c=400)
    A : 300%
    B : 400%
    C : 100%
    D : 200%
    Q.no 59. In face milling,What is the cutting speed when main axis spindle speed is
    350 rpm and the cutter diameter is 125 mm ?
    A : 137.4 m/min
    B : 142 m/min
    C : 150.2 m/min
    D : 130 m/min
    Q.no 60. The time required for machining a workpiece 50 mm dianeter 350 mm
    length, turn all over in four passes. The approach length is 12 mm, Overtravel
    10mm, the feed = 0.5 mm/rev, and cutting speed is 35m/min.
    A : 13.016 min
    B : 10.016 min
    C : 11.016 min
    D : 12.016 min
    Q.no 1. A grinding ratio of 200 implies that the
    A : Grinding wheel wears 200 times the
    volume of the material removed
    B : grinding wheel wears 0.005 times
    the volume of the material removed
    C : aspect ratio of abrasive
    particles used in the
    grinding wheel is 200
    D : ratio of volume
    of abrasive particle
    to that of grinding
    wheel is 200
    Q.no 2. The hardness of a grinding wheel is determined by the
    A : Hardness of abrasive grains
    B : Ability of the bond to retain abrasives
    C : Hardness of the bond
    D : Ability of the grinding wheel to penetrate the work piece
    Q.no 3. A grinding wheel is said to be of if it holds the abrasive grains
    more securely
    A : Soft grade
    B : Medium grade
    C : Hard grade
    D : very soft grade
    Q.no 4. Which of the following process has highest rate of metal removal
    A : Electric Discharge Machining (EDM)
    B : Electro-Chemical Machining (ECM)
    C : Ultrasonic Machining (USM)
    D : Laser Beam Machining (LBM)
    Q.no 5. Which of the following range of numbers represents dense structure of
    abrasives?
    A : 0-7
    B : 8-10
    C : 10-12
    D : 12-16
    Q.no 6. In centreless grinding, workpiece centre will be
    A : Above the line joining the two
    wheel centres
    B : Below the line joining the two
    wheel centres
    C : On the line joining the two
    wheel centres
    D : At the intersection of the
    line joining the wheel
    centres with the workpiece
    Q.no 7. Which of the following process have the lowest metal removal rate?
    A : Drilling
    B : Milling
    C : Reaming
    D : Honning
    Q.no 8. When the metal is removed by erosion caused by rapidly recurring spark
    discharges between the tool and work, the process is known as
    A : Electrochemical machining
    B : Electro-discharge machining
    C : Ultrasonic machining
    D : None of these
    Q.no 9. Which of the following method is not used for holding tool in drilling
    machine?
    A : by a sleeve
    B : by four jaw chucks
    C : by a socket
    D : By tool holder
    Q.no 10. The usual value of the point angle of a drill is
    A : 70°
    B : 100°
    C : 118°
    D : 130°
    Q.no 11. Twist drills are made of
    A : High speed steel
    B : Mild Steel
    C : Stainless steel
    D : High Carbon Steel
    Q.no 12. Cast iron during machining produces
    A : Continuous chips
    B : Dis-Continuous chips
    C : Continuous chips with
    built-up-edge
    D : None of these
    Q.no 13. In centerless grinders, the regulating wheel is inclined at
    A : 0° to 8°
    B : 9° to 15°
    C : 16° to 20°
    D : 21° to 25°
    Q.no 14. Which of the following material/s cannot be used for making of nozzle in
    Abrasive jet machining?
    A : Tungsten Carbide
    B : Steel alloy
    C : Sapphire
    D : Synthetic sapphire
    Q.no 15. The operation of making a cone-shaped enlargement of the end of a hole
    is known as
    A : counter-sinking
    B : Counter-boring
    C : Treppaning
    D : Spot facing
    Q.no 16. If l=length of travel of the drill in mm, n=rpm of the drill, s= feed per
    revolution of the drill in mm. Then machining time can be given as__

    A : (ln)/s B : (ls)/n
    C : l/(n*s)
    D : (1+n)/s
    Q.no 17. Carbide tipped tools usually have
    A : Negative rake angle
    B : Positive rake angle
    C : Any rake angle
    D : No rake angle
    Q.no 18. Feed control system is responsible for which action in ECM?
    A : Giving feed to tool
    B : Electrolyte supply
    C : Power supply
    D : None of the mentioned
    Q.no 19. Which of the following come under the main components of ECM?
    A : Feed control system
    B : Work piece holding devices
    C : Electrolyte supply system
    D : All of the mentioned
    Q.no 20. A half nut is
    A : Damaged nut
    B : Nut manufactured in parts
    C : Nut with half the standard pitch
    D : Mechanism that locks the
    lathe carriage to the load
    screw for thread cutting
    Q.no 21. How is material removed in Electro discharge machining?
    A : Melt and evaporate
    B : Corrode and break
    C : Mechanical erosion takes place
    D : None of the mentioned
    Q.no 22. In __ operation, the chip thickness is minimum at the beginning of
    the
    A : conventional milling
    B : climb milling
    C : face milling
    D : end milling
    Q.no 23. For which of the following operations, broaching can be used?
    A : Threading
    B : Grinding
    C : Spline cutting
    D : Increasing the size of the
    existing hole for a certain
    length
    Q.no 24. In Electro discharge machining, materials with low melting point have
    which type of material removal rate?
    A : Very low
    B : Low
    C : Medium
    D : High
    Q.no 25. The main purpose of a boring operation, as compared to drilling, is to
    A : Drill a hole
    B : Finish the drilled hole
    C : Correct the hole
    D : Enlarge the existing hole
    Q.no 26. Tool life in turning will decrease by maximum extent if we double the….
    A : Depth of cut
    B : Feed
    C : Cutting Velocity
    D : Tool rake angle
    Q.no 27. In which process the material is removed due to the action of abrasive
    grains?
    A : Electron Beam Machining (EBM)
    B : Ultrasonic Machining (USM)
    C : Laser Beam Machining (LBM)
    D : Electrical Discharge Machining (EDM)
    Q.no 28. Which type of adjustment required for gap voltages in ECM?
    A : Continuous adjustment
    B : Discontinuous adjustment
    C : Periodic adjustment
    D : All of the mentioned
    Q.no 29. Of the following properties of nozzle, which of them does not influence
    the MRR in AJM?
    A : Size
    B : Material
    C : Outside temperature
    D : Distance from work piece
    Q.no 30. A dynamo-meter is a device used for the measurement of
    A : Chip thickness ratio
    B : Forces during metal cutting
    C : Wear of the cutting tool
    D : Deflection of the cutting tool
    Q.no 31. Grinding wheel is specified as “A 46 K 5 B 17”. Grain size of a wheel will be
    A : Coarse
    B : Medium
    C : Fine
    D : Very Fine
    Q.no 32. Which of the following is not a media of energy transfer on which the
    advanced machining processes are classified?
    A : Reactive atmosphere
    B : Electrons
    C : Electrolyte
    D : Chemical ablation
    Q.no 33. In AJM, surface roughness value will vary between which values?
    A : 0.01 – 0.10 μm
    B : 0.15 – 1.5 μm
    C : 2.0 – 5.0 μm
    D : 7.0 – 10.0 μm
    Q.no 34. Which of the following specified grinding wheel will have Aluminum
    oxide abrasive?
    A : Z 46 K 5 B 17
    B : C 600 K 5 B 17
    C : C 8 K 5 B 17
    D : A 80 K 5 B 17
    Q.no 35. Which of the following specified grinding wheel will have Silicon carbide
    abrasive?
    A : Z 46 K 5 B 17
    B : C 600 K 5 B 17
    C : A 8 K 5 B 17
    D : A 80 K 5 B 17
    Q.no 36. The swing diameter over the bed is………the height of the center
    measured from the bed of the lathe
    A : Equal to
    B : Twice
    C : Thrice
    D : One -half
    Q.no 37. The useful life of a HSS tool machining mild steel at18 m/min is 3 hr.
    Calculate the tool life when the tool operate at 24 m/min.
    A : 12 min
    B : 18 min
    C : 20 min
    D : 24 min
    Q.no 38. At high cutting speed, high temperature at tool-chip interface is caused
    by
  45. Heat generation rate increases with an increase in cutting speed
  46. Friction coefficient (μ) decreases with an increase in cutting speed
  47. The time required to transfer the heat decreases with an increase in cutting
    speed
  48. Localization of heat takes place with an increase in cutting speed
    A : 1,3 &4
    B : 1,2,3 &4
    C : 1,2,& 3
    D : 2,3 &4
    Q.no 39. Amplitude of oscillation of tool in USM ranges between?
    A : 0.1-10 μm
    B : 10-40 μm
    C : 50-100 μm
    D : 100-1000 μm
    Q.no 40. Which one of the following process is worked on principle of Mechanical
    errosion
    A : AJM
    B : EDM
    C : ECM
    D : PAM
    Q.no 41. If n=number of divisions required, then find the number of holes to be
    moved in direct indexing
    A : 12/n
    B : 24/n
    C : 40/n
    D : 120/n
    Q.no 42. What is the value of abrasive grain flow rate in Abrasive jet machining?
    A : 0.1 – 2 g/min
    B : 3 – 20 g/min
    C : 30 – 56 g/min
    D : 68 – 85 g/min
    Q.no 43. In an orthogonal cutting the depth of cut is halved and the feed is double.
    If the chip thickness ratio is unaffected with the changed cutting conditions the
    actual chip thickness will be
    A : Doubled
    B : Halved
    C : Quadrupled
    D : unchanged
    Q.no 44. What is the general life of Tungsten carbide material nozzle in AJM?
    A : 1 – 8 hrs
    B : 2 – 5 hrs
    C : 10 – 15 hrs
    D : 25 – 40 hrs
    Q.no 45. Find the angle at which the compound rest should be set up to turn taper
    on the workpiece having a length of 20mm, larger diameter 45mm and the
    smaller diameter 30mm.
    A : 2 Degree 9 Minutes
    B : 3 Degree 9 Minutes
    C : 4 Degree 9 Minutes
    D : 5 Degree 9 Minutes
    Q.no 46. Which one of the following process is worked on principle of electrolysis
    using eletrolyte
    A : EDM
    B : USM
    C : AJM
    D : ECM
    Q.no 47. Which one of the following is not a hybrid non-conventional machinig
    process
    A : ECDM
    B : AWJM
    C : Ultrasonic assisted EDM
    D : EBM
    Q.no 48. Which one of the following is a hybrid non-conventional machinig
    process
    A : ECM
    B : EDM
    C : AWJM
    D : LBM
    Q.no 49. It is desired to perform the operations like drilling, reaming, counterboring etc. on a work piece. Which of the following machine will be used?
    A : Sensitive drilling machine
    B : Radial drilling machine
    C : Gang drilling machine
    D : Multiple spindle drilling
    machine
    Q.no 50. In Abrasive jet machining, what may be the size of the abrasive grains
    used?
    A : 10 – 40 μm
    B : 50 – 100 μm
    C : 100 – 150 μm
    D : 200 – 300 μm
    Q.no 51. In orthogonal cutting feed is 0.2 mm/rev, Chip thickness is 0.3 mm, Rake
    angle is 15 degrees. Then the shear plane angle in degrees is
    A : 27.9
    B : 17.9
    C : 37.9
    D : 47.9
    Q.no 52. In a drilling operation using a twist drill, the lip angle is 120 degree
    (standard), the spindle speed is 300 rpm, the feed is 0.2 mm/rev and the drill
    diameter is 10 mm,calculate machining time to drill a hole of 30 mm long ?
    A : 0.88 min
    B : 0.54 min
    C : 1.2 min
    D : 3 min
    Q.no 53. Calculate the cutting speed of drilling operation when diameter of drill is
    10 mm and rotational speed of drill is 200 r.p.m.
    A : 6.283 m/min
    B : 3.142 m/min
    C : 8.362 m/min
    D : 10.216 m/min
    Q.no 54. A shaft 1200 mm long has a taper of 1:100 for a length of 600 mm. The
    maximum diameter of the shaft to be 80 mm. Determine the minimum diameter
    of staft and amount of setover
    A : 78 mm & 22 mm
    B : 60 mm & 20 mm
    C : 65 mm & 15 mm
    D : 68 mm & 12 mm
    Q.no 55. A tapered pin is to be prepared on a lathe machine. If the larger diameter
    is 90 mm, smaller diameter is 80 mm, length of the pin is 100 mm, Find the angle
    of taper at which the compound rest to be swivelled around
    A : 3 Degrees and 51 Minutes
    B : 2 Degrees and 15 Minutes
    C : 4 Degrees and 51 Minutes
    D : 2 Degrees and 51 Minutes
    Q.no 56. In orthogonal turning of MS bar of 65 mm diameter machined on a lathe
    with a feed of 0.8 mm was used. A continuous chip of 1.4 mm thickness was
    removed at a rotational speed of 85 rpm. The Chip thickness ratio, Chip reduction
    ratio and Total length of the Chip in One Minute respectively is
    A : 0.5714, 1.75, 9918 mm
    B : 1.75, 0.5714, 9915 mm
    C : 1.75, 9999 mm, 05714,
    D : 57.14, 1.75, 9999 mm
    Q.no 57. A mild steel material is being turn for 50 mm length with a feed rate of
    0.15 mm/rev and spindle speed of 1400 rpm. The time required to cut the material
    in miniutes is
    A : 0.13
    B : 0.23
    C : 0.33
    D : 0.43
    Q.no 58. In Face Milling,What is the feed per tooth when the main axis spindle
    speed is 500 rpm, number of insert is 10, and table feed is 500mm/min
    A : 0.1 mm/tooth
    B : 0.7 mm/tooth
    C : 1 mm/tooth
    D : 7 mm/tooth
    Q.no 59. In an orthogonal cutting if the feed is 1.25 mm/rev, the chip thickness
    after cutting is 2 mm, then the chip thickness ratio and shear angle (for rake
    angle 10 Degrees) respectively are
    A : 0.525, 36.62 Degrees
    B : 0.625, 34.62 Degrees
    C : 0.425, 36.42 Degrees
    D : 0.325, 34.62 Degrees
    Q.no 60. Time required for one complete cut on the piece of work 350 mm long
    and 50 mm in diameter. the cutting speed is 35 m/min and feed is 0.5 mm/rev.
    A : 2.1 Min
    B : 3.1 Min
    C : 3.5 Min
    D : 3.6 Min
    Q.no 1. Steady rest is
    A : An additional support provided for long jobs
    B : Used while turning unsymmetrical
    objects
    C : Used during Plain cutting only
    D : Used when a lathe is
    subject to vibrations
    Q.no 2. The tool life is said to be over if
    A : Poor surface finish is obtained
    B : There is sudden increase in cutting
    forces and power consumption
    C : Overheating and fuming due to
    heat of friction starts
    D : All of the above
    Q.no 3. Which of the following symbol’s range of alphabet represent soft grain in
    grinding wheel?
    A : A – H
    B : I – P
    C : Q – T
    D : T – Z
    Q.no 4. Lapping is an operation of_________
    A : Making a cone-shaped enlargement
    of the end of a hole
    B : Smoothing and squaring the
    surface around a hole
    C : Sizing and finishing a
    small diameter hole
    D : Producing a hole by
    removing metal along
    the circumference of
    a hollow cutting tool
    Q.no 5. In a milling operation, two side milling cutters are mounted with a desired
    distance between them so that both sides of a workpiece can be milled
    simultaneously. This set up is called
    A : Gang milling
    B : Straddle milling
    C : Face milling
    D : Side milling
    Q.no 6. In Abrasive jet machining, work piece material of removed by which of
    the following means?
    A : Vaporization
    B : Electro plating
    C : Mechanical abrasion
    D : Corrosion
    Q.no 7. The operation of producing grooves around the periphery of a cylindrical
    or conical workpiece is called
    A : profile milling
    B : Gang milling
    C : Saw milling
    D : Helical milling
    Q.no 8. Burnishing is a process of
    A : Cold working
    B : Hot working
    C : Press working
    D : Metal Cutting
    Q.no 9. Grinding wheel Tool signature consists of _ elements
    A : 4
    B : 5
    C : 6
    D : 7
    Q.no 10. The hardness of a grinding wheel is determined by the
    A : Hardness of abrasive grains
    B : Ability of the bond to retain abrasives
    C : Hardness of the bond
    D : Ability of the grinding wheel to penetrate the work piece
    Q.no 11. Use of tail stock in cylindrical grinding machine is
    A : To drive the work piece
    B : To give feed to the wheel head
    C : To provide Speed to
    grinding wheel
    D : To support the
    other end of the
    work piece
    Q.no 12. Which of the following range of numbers represents dense structure of
    abrasives?
    A : 0-7
    B : 8-10
    C : 10-12
    D : 12-16
    Q.no 13. Removing dull grains in order to make grinding wheel sharp is known as
    A : Loading
    B : Glazing
    C : Dressing
    D : Trueing
    Q.no 14. Which of the following is a not a surface finishing process?
    A : Honing
    B : Buffing
    C : Lapping
    D : Turning
    Q.no 15. A coarse grained grinding wheel is used to grind
    A : Soft and Hard materials
    B : Soft and ductile materials
    C : Hard Material
    D : Tough Material
    Q.no 16. In oblique cutting of metals, the cutting edge of the tools is.
    A : Perpendicular to the workpiece
    B : Perpendicular to the direction of
    tool travel
    C : Parallel to the direction of
    tool travel
    D : Inclined at an angle less
    than 90 to the direction of tool travel
    Q.no 17. Which of the following process has highest rate of metal removal
    A : Electric Discharge Machining (EDM)
    B : Electro-Chemical Machining (ECM)
    C : Ultrasonic Machining (USM)
    D : Laser Beam Machining (LBM)
    Q.no 18. Shear angle varies with
    A : Cutting speed
    B : Feed
    C : Depth of cut
    D : Work piece materials and
    tool geometry
    Q.no 19. A grinding ratio of 200 implies that the
    A : Grinding wheel wears 200 times the
    volume of the material removed
    B : grinding wheel wears 0.005 times
    the volume of the material removed
    C : aspect ratio of abrasive
    particles used in the
    grinding wheel is 200
    D : ratio of volume
    of abrasive particle
    to that of grinding
    wheel is 200
    Q.no 20. Which of the following processes is generally applied for dentistry work
    like to drill fine holes of particular shape in teeth?
    A : Electrical Discharge Machining (EDM)
    B : Electron Beam Machining (EBM)
    C : Laser Beam Machining (LBM)
    D : Ultrasonic Machining (USM)
    Q.no 21. As the abrasive flow rate increases, what happens to the volumetric
    removal rate in AJM?
    A : Increases
    B : Decreases
    C : Increase and then decrease
    D : Decrease and then increase
    Q.no 22. A grinding wheel is said to be of
    if it holds the abrasive grains
    more securely
    A : Soft grade
    B : Medium grade
    C : Hard grade
    D : very soft grade
    Q.no 23. The angle between the face and flank of the single point cutting tool is
    known as
    A : Rake angle
    B : Clearance angle
    C : Lip angle
    D : Point angle
    Q.no 24. In centreless grinding, workpiece centre will be
    A : Above the line joining the two
    wheel centres
    B : Below the line joining the two
    wheel centres
    C : On the line joining the two
    wheel centres
    D : At the intersection of the
    line joining the wheel
    centres with the workpiece
    Q.no 25. Discontinuous chips are formed during machine of
    A : Brittle metals
    B : Ductile metals
    C : Soft metals
    D : Tough metals
    Q.no 26. If a cutting tool is designed as 8°-14°-6°-8°-8°-19°-1mm what is the side
    Rake angle of the tool
    A : 14°
    B : 19°
    C : 6°
    D : 8°
    Q.no 27. A dynamo-meter is a device used for the measurement of
    A : Chip thickness ratio
    B : Forces during metal cutting
    C : Wear of the cutting tool
    D : Deflection of the cutting tool
    Q.no 28. In Electro discharge machining, materials with low melting point have
    which type of material removal rate?
    A : Very low
    B : Low
    C : Medium
    D : High
    Q.no 29. In which process the material is removed due to the action of abrasive
    grains?
    A : Electron Beam Machining (EBM)
    B : Ultrasonic Machining (USM)
    C : Laser Beam Machining (LBM)
    D : Electrical Discharge Machining (EDM)
    Q.no 30. Twist drills are made of
    A : High speed steel
    B : Mild Steel
    C : Stainless steel
    D : High Carbon Steel
    Q.no 31. Which of the following is not a media of energy transfer on which the
    advanced machining processes are classified?
    A : Reactive atmosphere
    B : Electrons
    C : Electrolyte
    D : Chemical ablation
    Q.no 32. Frequency of tool’s oscillation in USM ranges between?
    A : 5-10 kHz
    B : 10-15 kHz
    C : 18-20 kHz
    D : 25-50 kHz
    Q.no 33. Which of the following specified grinding wheel will have Silicon carbide
    abrasive?
    A : Z 46 K 5 B 17
    B : C 600 K 5 B 17
    C : A 8 K 5 B 17
    D : A 80 K 5 B 17
    Q.no 34. Grinding wheel is specified as “A 46 K 5 B 17”. Grain size of a wheel will be
    A : Coarse
    B : Medium
    C : Fine
    D : Very Fine
    Q.no 35. In AJM, surface roughness value will vary between which values?
    A : 0.01 – 0.10 μm
    B : 0.15 – 1.5 μm
    C : 2.0 – 5.0 μm
    D : 7.0 – 10.0 μm
    Q.no 36. In machining operation, Uncut chip thickness t0= 0.8 mm and Chip
    thickness tc=1.2 mm. The correct option for the chip thickness ratio (r) is
    A : 0.4
    B : 0.66
    C : 0.84
    D : 1.5
    Q.no 37. The tail stock set over required to turn a taper on the entire length of a
    workpiece having diameters D and d is
    A : D-d / (2L)
    B : D-d /(L)
    C : D-d /(2)
    D : D-d
    Q.no 38. Which of the following specified grinding wheel will have Aluminum
    oxide abrasive?
    A : Z 46 K 5 B 17
    B : C 600 K 5 B 17
    C : C 8 K 5 B 17
    D : A 80 K 5 B 17
    Q.no 39. Which one of the following process is worked on principle of Mechanical
    errosion
    A : AJM
    B : EDM
    C : ECM
    D : PAM
    Q.no 40. Which one of the following is not a hybrid non-conventional machinig
    process
    A : ECDM
    B : AWJM
    C : Ultrasonic assisted EDM
    D : EBM
    Q.no 41. At high cutting speed, high temperature at tool-chip interface is caused
    by
  49. Heat generation rate increases with an increase in cutting speed
  50. Friction coefficient (μ) decreases with an increase in cutting speed
  51. The time required to transfer the heat decreases with an increase in cutting
    speed
  52. Localization of heat takes place with an increase in cutting speed
    A : 1,3 &4
    B : 1,2,3 &4
    C : 1,2,& 3
    D : 2,3 &4
    Q.no 42. If n=number of divisions required, then find the number of holes to be
    moved in direct indexing
    A : 12/n
    B : 24/n
    C : 40/n
    D : 120/n
    Q.no 43. Find the angle at which the compound rest should be set up to turn taper
    on the workpiece having a length of 20mm, larger diameter 45mm and the
    smaller diameter 30mm.
    A : 2 Degree 9 Minutes
    B : 3 Degree 9 Minutes
    C : 4 Degree 9 Minutes
    D : 5 Degree 9 Minutes
    Q.no 44. The swing diameter over the bed is………the height of the center
    measured from the bed of the lathe
    A : Equal to
    B : Twice
    C : Thrice
    D : One -half
    Q.no 45. What is the general life of Tungsten carbide material nozzle in AJM?
    A : 1 – 8 hrs
    B : 2 – 5 hrs
    C : 10 – 15 hrs
    D : 25 – 40 hrs
    Q.no 46. Which one of the following is a hybrid non-conventional machinig
    process
    A : ECM
    B : EDM
    C : AWJM
    D : LBM
    Q.no 47. Which one of the following process is worked on principle of electrolysis
    using eletrolyte
    A : EDM
    B : USM
    C : AJM
    D : ECM
    Q.no 48. In an orthogonal cutting the depth of cut is halved and the feed is double.
    If the chip thickness ratio is unaffected with the changed cutting conditions the
    actual chip thickness will be
    A : Doubled
    B : Halved
    C : Quadrupled
    D : unchanged
    Q.no 49. In Abrasive jet machining, what may be the size of the abrasive grains
    used?
    A : 10 – 40 μm
    B : 50 – 100 μm
    C : 100 – 150 μm
    D : 200 – 300 μm
    Q.no 50. Amplitude of oscillation of tool in USM ranges between?
    A : 0.1-10 μm
    B : 10-40 μm
    C : 50-100 μm
    D : 100-1000 μm
    Q.no 51. The time required for machining a workpiece 50 mm dianeter 350 mm
    length, turn all over in four passes. The approach length is 12 mm, Overtravel
    10mm, the feed = 0.5 mm/rev, and cutting speed is 35m/min.
    A : 13.016 min
    B : 10.016 min
    C : 11.016 min
    D : 12.016 min
    Q.no 52. Using the Taylor equation VT^n=c, calculate the percentage increase in
    tool life when the cutting speed is reduced is reduced by 50% (n=0.5 and c=400)
    A : 300%
    B : 400%
    C : 100%
    D : 200%
    Q.no 53. In face milling,What is the cutting speed when main axis spindle speed is
    350 rpm and the cutter diameter is 125 mm ?
    A : 137.4 m/min
    B : 142 m/min
    C : 150.2 m/min
    D : 130 m/min
    Q.no 54. In the Taylor’s tool life equation, VT^n = C, the value of n=0.5. The tool life
    has a life of 180 minutes at a cutting speed of 18 m/min. If the tool life is reduced
    to 45 minutes, then the cutting speed will be
    A : 9 m/min
    B : 18 m/min
    C : 36 m/min
    D : 72 m/min
    Q.no 55. In orthogonal cutting feed is 0.2 mm/rev, Chip thickness is 0.3 mm, Rake
    angle is 15 degrees. Then the shear plane angle in degrees is
    A : 27.9
    B : 17.9
    C : 37.9
    D : 47.9
    Q.no 56. In an orthogonal cutting if the feed is 1.25 mm/rev, the chip thickness
    after cutting is 2 mm, then the chip thickness ratio and shear angle (for rake
    angle 10 Degrees) respectively are
    A : 0.525, 36.62 Degrees
    B : 0.625, 34.62 Degrees
    C : 0.425, 36.42 Degrees
    D : 0.325, 34.62 Degrees
    Q.no 57. Time required for one complete cut on the piece of work 350 mm long
    and 50 mm in diameter. the cutting speed is 35 m/min and feed is 0.5 mm/rev.
    A : 2.1 Min
    B : 3.1 Min
    C : 3.5 Min
    D : 3.6 Min
    Q.no 58. In Face Milling,What is the feed per tooth when the main axis spindle
    speed is 500 rpm, number of insert is 10, and table feed is 500mm/min
    A : 0.1 mm/tooth
    B : 0.7 mm/tooth
    C : 1 mm/tooth
    D : 7 mm/tooth
    Q.no 59. In orthogonal turning of MS bar of 65 mm diameter machined on a lathe
    with a feed of 0.8 mm was used. A continuous chip of 1.4 mm thickness was
    removed at a rotational speed of 85 rpm. The Chip thickness ratio, Chip reduction
    ratio and Total length of the Chip in One Minute respectively is
    A : 0.5714, 1.75, 9918 mm
    B : 1.75, 0.5714, 9915 mm
    C : 1.75, 9999 mm, 05714,
    D : 57.14, 1.75, 9999 mm
    Q.no 60. Calculate the cutting speed of drilling operation when diameter of drill is
    10 mm and rotational speed of drill is 200 r.p.m.
    A : 6.283 m/min
    B : 3.142 m/min
    C : 8.362 m/min
    D : 10.216 m/min
    Q.no 1. The usual value of the point angle of a drill is
    A : 70°
    B : 100°
    C : 118°
    D : 130°
    Q.no 2. In centerless grinders, the regulating wheel is inclined at
    A : 0° to 8°
    B : 9° to 15°
    C : 16° to 20°
    D : 21° to 25°
    Q.no 3. In _ operation, the chip thickness is minimum at the beginning of
    the
    A : conventional milling
    B : climb milling
    C : face milling
    D : end milling
    Q.no 4. Feed control system is responsible for which action in ECM?
    A : Giving feed to tool
    B : Electrolyte supply
    C : Power supply
    D : None of the mentioned
    Q.no 5. A half nut is
    A : Damaged nut
    B : Nut manufactured in parts
    C : Nut with half the standard pitch
    D : Mechanism that locks the
    lathe carriage to the load
    screw for thread cutting
    Q.no 6. For which of the following operations, broaching can be used?
    A : Threading
    B : Grinding
    C : Spline cutting
    D : Increasing the size of the
    existing hole for a certain
    length
    Q.no 7. When the metal is removed by erosion caused by rapidly recurring spark
    discharges between the tool and work, the process is known as
    A : Electrochemical machining
    B : Electro-discharge machining
    C : Ultrasonic machining
    D : None of these
    Q.no 8. The main purpose of a boring operation, as compared to drilling, is to
    A : Drill a hole
    B : Finish the drilled hole
    C : Correct the hole
    D : Enlarge the existing hole
    Q.no 9. Which of the following material/s cannot be used for making of nozzle in
    Abrasive jet machining?
    A : Tungsten Carbide
    B : Steel alloy
    C : Sapphire
    D : Synthetic sapphire
    Q.no 10. Which of the following method is not used for holding tool in drilling
    machine?
    A : by a sleeve
    B : by four jaw chucks
    C : by a socket
    D : By tool holder
    Q.no 11. Carbide tipped tools usually have
    A : Negative rake angle
    B : Positive rake angle
    C : Any rake angle
    D : No rake angle
    Q.no 12. Which of the following process have the lowest metal removal rate?
    A : Drilling
    B : Milling
    C : Reaming
    D : Honning
    Q.no 13. Tool life in turning will decrease by maximum extent if we double the….
    A : Depth of cut
    B : Feed
    C : Cutting Velocity
    D : Tool rake angle
    Q.no 14. Which type of adjustment required for gap voltages in ECM?
    A : Continuous adjustment
    B : Discontinuous adjustment
    C : Periodic adjustment
    D : All of the mentioned
    Q.no 15. How is material removed in Electro discharge machining?
    A : Melt and evaporate
    B : Corrode and break
    C : Mechanical erosion takes place
    D : None of the mentioned
    Q.no 16. Cast iron during machining produces
    A : Continuous chips
    B : Dis-Continuous chips
    C : Continuous chips with
    built-up-edge
    D : None of these
    Q.no 17. If l=length of travel of the drill in mm, n=rpm of the drill, s= feed per
    revolution of the drill in mm. Then machining time can be given as__

    A : (ln)/s B : (ls)/n
    C : l/(n*s)
    D : (1+n)/s
    Q.no 18. Of the following properties of nozzle, which of them does not influence
    the MRR in AJM?
    A : Size
    B : Material
    C : Outside temperature
    D : Distance from work piece
    Q.no 19. The operation of making a cone-shaped enlargement of the end of a hole
    is known as
    A : counter-sinking
    B : Counter-boring
    C : Treppaning
    D : Spot facing
    Q.no 20. Which of the following come under the main components of ECM?
    A : Feed control system
    B : Work piece holding devices
    C : Electrolyte supply system
    D : All of the mentioned
    Q.no 21. The operation of producing grooves around the periphery of a cylindrical
    or conical workpiece is called
    A : profile milling
    B : Gang milling
    C : Saw milling
    D : Helical milling
    Q.no 22. Use of tail stock in cylindrical grinding machine is
    A : To drive the work piece
    B : To give feed to the wheel head
    C : To provide Speed to
    grinding wheel
    D : To support the
    other end of the
    work piece
    Q.no 23. In a milling operation, two side milling cutters are mounted with a
    desired distance between them so that both sides of a workpiece can be milled
    simultaneously. This set up is called
    A : Gang milling
    B : Straddle milling
    C : Face milling
    D : Side milling
    Q.no 24. Lapping is an operation of_________
    A : Making a cone-shaped enlargement
    of the end of a hole
    B : Smoothing and squaring the
    surface around a hole
    C : Sizing and finishing a
    small diameter hole
    D : Producing a hole by
    removing metal along
    the circumference of
    a hollow cutting tool
    Q.no 25. Which of the following symbol’s range of alphabet represent soft grain in
    grinding wheel?
    A : A – H
    B : I – P
    C : Q – T
    D : T – Z
    Q.no 26. Twist drills are made of
    A : High speed steel
    B : Mild Steel
    C : Stainless steel
    D : High Carbon Steel
    Q.no 27. Burnishing is a process of
    A : Cold working
    B : Hot working
    C : Press working
    D : Metal Cutting
    Q.no 28. A grinding ratio of 200 implies that the
    A : Grinding wheel wears 200 times the
    volume of the material removed
    B : grinding wheel wears 0.005 times
    the volume of the material removed
    C : aspect ratio of abrasive
    particles used in the
    grinding wheel is 200
    D : ratio of volume
    of abrasive particle
    to that of grinding
    wheel is 200
    Q.no 29. Which of the following processes is generally applied for dentistry work
    like to drill fine holes of particular shape in teeth?
    A : Electrical Discharge Machining (EDM)
    B : Electron Beam Machining (EBM)
    C : Laser Beam Machining (LBM)
    D : Ultrasonic Machining (USM)
    Q.no 30. The hardness of a grinding wheel is determined by the
    A : Hardness of abrasive grains
    B : Ability of the bond to retain abrasives
    C : Hardness of the bond
    D : Ability of the grinding wheel to penetrate the work piece
    Q.no 31. Which of the following is not a media of energy transfer on which the
    advanced machining processes are classified?
    A : Reactive atmosphere
    B : Electrons
    C : Electrolyte
    D : Chemical ablation
    Q.no 32. The useful life of a HSS tool machining mild steel at18 m/min is 3 hr.
    Calculate the tool life when the tool operate at 24 m/min.
    A : 12 min
    B : 18 min
    C : 20 min
    D : 24 min
    Q.no 33. In AJM, surface roughness value will vary between which values?
    A : 0.01 – 0.10 μm
    B : 0.15 – 1.5 μm
    C : 2.0 – 5.0 μm
    D : 7.0 – 10.0 μm
    Q.no 34. In machining operation, Uncut chip thickness t0= 0.8 mm and Chip
    thickness tc=1.2 mm. The correct option for the chip thickness ratio (r) is
    A : 0.4
    B : 0.66
    C : 0.84
    D : 1.5
    Q.no 35. Frequency of tool’s oscillation in USM ranges between?
    A : 5-10 kHz
    B : 10-15 kHz
    C : 18-20 kHz
    D : 25-50 kHz
    Q.no 36. Which of the following specified grinding wheel will have Silicon carbide
    abrasive?
    A : Z 46 K 5 B 17
    B : C 600 K 5 B 17
    C : A 8 K 5 B 17
    D : A 80 K 5 B 17
    Q.no 37. What is the value of abrasive grain flow rate in Abrasive jet machining?
    A : 0.1 – 2 g/min
    B : 3 – 20 g/min
    C : 30 – 56 g/min
    D : 68 – 85 g/min
    Q.no 38. Grinding wheel is specified as “A 46 K 5 B 17”. Grain size of a wheel will be
    A : Coarse
    B : Medium
    C : Fine
    D : Very Fine
    Q.no 39. It is desired to perform the operations like drilling, reaming, counterboring etc. on a work piece. Which of the following machine will be used?
    A : Sensitive drilling machine
    B : Radial drilling machine
    C : Gang drilling machine
    D : Multiple spindle drilling
    machine
    Q.no 40. Which of the following specified grinding wheel will have Aluminum
    oxide abrasive?
    A : Z 46 K 5 B 17
    B : C 600 K 5 B 17
    C : C 8 K 5 B 17
    D : A 80 K 5 B 17
    Q.no 41. Which one of the following is a hybrid non-conventional machinig
    process
    A : ECM
    B : EDM
    C : AWJM
    D : LBM
    Q.no 42. Find the angle at which the compound rest should be set up to turn taper
    on the workpiece having a length of 20mm, larger diameter 45mm and the
    smaller diameter 30mm.
    A : 2 Degree 9 Minutes
    B : 3 Degree 9 Minutes
    C : 4 Degree 9 Minutes
    D : 5 Degree 9 Minutes
    Q.no 43. In an orthogonal cutting the depth of cut is halved and the feed is double.
    If the chip thickness ratio is unaffected with the changed cutting conditions the
    actual chip thickness will be
    A : Doubled
    B : Halved
    C : Quadrupled
    D : unchanged
    Q.no 44. The tail stock set over required to turn a taper on the entire length of a
    workpiece having diameters D and d is
    A : D-d / (2L)
    B : D-d /(L)
    C : D-d /(2)
    D : D-d
    Q.no 45. Amplitude of oscillation of tool in USM ranges between?
    A : 0.1-10 μm
    B : 10-40 μm
    C : 50-100 μm
    D : 100-1000 μm
    Q.no 46. Which one of the following process is worked on principle of electrolysis
    using eletrolyte
    A : EDM
    B : USM
    C : AJM
    D : ECM
    Q.no 47. In Abrasive jet machining, what may be the size of the abrasive grains
    used?
    A : 10 – 40 μm
    B : 50 – 100 μm
    C : 100 – 150 μm
    D : 200 – 300 μm
    Q.no 48. The swing diameter over the bed is………the height of the center
    measured from the bed of the lathe
    A : Equal to
    B : Twice
    C : Thrice
    D : One -half
    Q.no 49. What is the general life of Tungsten carbide material nozzle in AJM?
    A : 1 – 8 hrs
    B : 2 – 5 hrs
    C : 10 – 15 hrs
    D : 25 – 40 hrs
    Q.no 50. Which one of the following process is worked on principle of Mechanical
    errosion
    A : AJM
    B : EDM
    C : ECM
    D : PAM
    Q.no 51. The time required for machining a workpiece 50 mm dianeter 350 mm
    length, turn all over in four passes. The approach length is 12 mm, Overtravel
    10mm, the feed = 0.5 mm/rev, and cutting speed is 35m/min.
    A : 13.016 min
    B : 10.016 min
    C : 11.016 min
    D : 12.016 min
    Q.no 52. A tapered pin is to be prepared on a lathe machine. If the larger diameter
    is 90 mm, smaller diameter is 80 mm, length of the pin is 100 mm, Find the angle
    of taper at which the compound rest to be swivelled around
    A : 3 Degrees and 51 Minutes
    B : 2 Degrees and 15 Minutes
    C : 4 Degrees and 51 Minutes
    D : 2 Degrees and 51 Minutes
    Q.no 53. A shaft 1200 mm long has a taper of 1:100 for a length of 600 mm. The
    maximum diameter of the shaft to be 80 mm. Determine the minimum diameter
    of staft and amount of setover
    A : 78 mm & 22 mm
    B : 60 mm & 20 mm
    C : 65 mm & 15 mm
    D : 68 mm & 12 mm
    Q.no 54. Using the Taylor equation VT^n=c, calculate the percentage increase in
    tool life when the cutting speed is reduced is reduced by 50% (n=0.5 and c=400)
    A : 300%
    B : 400%
    C : 100%
    D : 200%
    Q.no 55. A mild steel material is being turn for 50 mm length with a feed rate of
    0.15 mm/rev and spindle speed of 1400 rpm. The time required to cut the material
    in miniutes is
    A : 0.13
    B : 0.23
    C : 0.33
    D : 0.43
    Q.no 56. In a drilling operation using a twist drill, the lip angle is 120 degree
    (standard), the spindle speed is 300 rpm, the feed is 0.2 mm/rev and the drill
    diameter is 10 mm,calculate machining time to drill a hole of 30 mm long ?
    A : 0.88 min
    B : 0.54 min
    C : 1.2 min
    D : 3 min
    Q.no 57. In face milling,What is the cutting speed when main axis spindle speed is
    350 rpm and the cutter diameter is 125 mm ?
    A : 137.4 m/min
    B : 142 m/min
    C : 150.2 m/min
    D : 130 m/min
    Q.no 58. Time required for one complete cut on the piece of work 350 mm long
    and 50 mm in diameter. the cutting speed is 35 m/min and feed is 0.5 mm/rev.
    A : 2.1 Min
    B : 3.1 Min
    C : 3.5 Min
    D : 3.6 Min
    Q.no 59. In orthogonal cutting feed is 0.2 mm/rev, Chip thickness is 0.3 mm, Rake
    angle is 15 degrees. Then the shear plane angle in degrees is
    A : 27.9
    B : 17.9
    C : 37.9
    D : 47.9
    Q.no 60. Calculate the cutting speed of drilling operation when diameter of drill is
    10 mm and rotational speed of drill is 200 r.p.m.
    A : 6.283 m/min
    B : 3.142 m/min
    C : 8.362 m/min
    D : 10.216 m/min
    Q.no 1. In which process the material is removed due to the action of abrasive
    grains?
    A : Electron Beam Machining (EBM)
    B : Ultrasonic Machining (USM)
    C : Laser Beam Machining (LBM)
    D : Electrical Discharge Machining (EDM)
    Q.no 2. Which of the following is a not a surface finishing process?
    A : Honing
    B : Buffing
    C : Lapping
    D : Turning
    Q.no 3. In Electro discharge machining, materials with low melting point have
    which type of material removal rate?
    A : Very low
    B : Low
    C : Medium
    D : High
    Q.no 4. Discontinuous chips are formed during machine of
    A : Brittle metals
    B : Ductile metals
    C : Soft metals
    D : Tough metals
    Q.no 5. Shear angle varies with
    A : Cutting speed
    B : Feed
    C : Depth of cut
    D : Work piece materials and
    tool geometry
    Q.no 6. In centerless grinders, the regulating wheel is inclined at
    A : 0° to 8°
    B : 9° to 15°
    C : 16° to 20°
    D : 21° to 25°
    Q.no 7. For which of the following operations, broaching can be used?
    A : Threading
    B : Grinding
    C : Spline cutting
    D : Increasing the size of the
    existing hole for a certain
    length
    Q.no 8. A half nut is
    A : Damaged nut
    B : Nut manufactured in parts
    C : Nut with half the standard pitch
    D : Mechanism that locks the
    lathe carriage to the load
    screw for thread cutting
    Q.no 9. In Abrasive jet machining, work piece material of removed by which of
    the following means?
    A : Vaporization
    B : Electro plating
    C : Mechanical abrasion
    D : Corrosion
    Q.no 10. As the abrasive flow rate increases, what happens to the volumetric
    removal rate in AJM?
    A : Increases
    B : Decreases
    C : Increase and then decrease
    D : Decrease and then increase
    Q.no 11. A grinding wheel is said to be of if it holds the abrasive grains
    more securely
    A : Soft grade
    B : Medium grade
    C : Hard grade
    D : very soft grade
    Q.no 12. The angle between the face and flank of the single point cutting tool is
    known as
    A : Rake angle
    B : Clearance angle
    C : Lip angle
    D : Point angle
    Q.no 13. The tool life is said to be over if
    A : Poor surface finish is obtained
    B : There is sudden increase in cutting
    forces and power consumption
    C : Overheating and fuming due to
    heat of friction starts
    D : All of the above
    Q.no 14. Which of the following process has highest rate of metal removal
    A : Electric Discharge Machining (EDM)
    B : Electro-Chemical Machining (ECM)
    C : Ultrasonic Machining (USM)
    D : Laser Beam Machining (LBM)
    Q.no 15. In oblique cutting of metals, the cutting edge of the tools is.
    A : Perpendicular to the workpiece
    B : Perpendicular to the direction of
    tool travel
    C : Parallel to the direction of
    tool travel
    D : Inclined at an angle less
    than 90 to the direction of tool travel
    Q.no 16. Which of the following range of numbers represents dense structure of
    abrasives?
    A : 0-7
    B : 8-10
    C : 10-12
    D : 12-16
    Q.no 17. Feed control system is responsible for which action in ECM?
    A : Giving feed to tool
    B : Electrolyte supply
    C : Power supply
    D : None of the mentioned
    Q.no 18. A dynamo-meter is a device used for the measurement of
    A : Chip thickness ratio
    B : Forces during metal cutting
    C : Wear of the cutting tool
    D : Deflection of the cutting tool
    Q.no 19. In centreless grinding, workpiece centre will be
    A : Above the line joining the two
    wheel centres
    B : Below the line joining the two
    wheel centres
    C : On the line joining the two
    wheel centres
    D : At the intersection of the
    line joining the wheel
    centres with the workpiece
    Q.no 20. Steady rest is
    A : An additional support provided for long jobs
    B : Used while turning unsymmetrical
    objects
    C : Used during Plain cutting only
    D : Used when a lathe is
    subject to vibrations
    Q.no 21. In _
    operation, the chip thickness is minimum at the beginning of
    the
    A : conventional milling
    B : climb milling
    C : face milling
    D : end milling
    Q.no 22. The usual value of the point angle of a drill is
    A : 70°
    B : 100°
    C : 118°
    D : 130°
    Q.no 23. If a cutting tool is designed as 8°-14°-6°-8°-8°-19°-1mm what is the side
    Rake angle of the tool
    A : 14°
    B : 19°
    C : 6°
    D : 8°
    Q.no 24. A coarse grained grinding wheel is used to grind
    A : Soft and Hard materials
    B : Soft and ductile materials
    C : Hard Material
    D : Tough Material
    Q.no 25. Removing dull grains in order to make grinding wheel sharp is known as
    A : Loading
    B : Glazing
    C : Dressing
    D : Trueing
    Q.no 26. Grinding wheel Tool signature consists of _ elements
    A : 4
    B : 5
    C : 6
    D : 7
    Q.no 27. Which of the following processes is generally applied for dentistry work
    like to drill fine holes of particular shape in teeth?
    A : Electrical Discharge Machining (EDM)
    B : Electron Beam Machining (EBM)
    C : Laser Beam Machining (LBM)
    D : Ultrasonic Machining (USM)
    Q.no 28. Lapping is an operation of______

    A : Making a cone-shaped enlargement
    of the end of a hole
    B : Smoothing and squaring the
    surface around a hole
    C : Sizing and finishing a
    small diameter hole
    D : Producing a hole by
    removing metal along
    the circumference of
    a hollow cutting tool
    Q.no 29. The main purpose of a boring operation, as compared to drilling, is to
    A : Drill a hole
    B : Finish the drilled hole
    C : Correct the hole
    D : Enlarge the existing hole
    Q.no 30. When the metal is removed by erosion caused by rapidly recurring spark
    discharges between the tool and work, the process is known as
    A : Electrochemical machining
    B : Electro-discharge machining
    C : Ultrasonic machining
    D : None of these
    Q.no 31. Which one of the following is not a hybrid non-conventional machinig
    process
    A : ECDM
    B : AWJM
    C : Ultrasonic assisted EDM
    D : EBM
    Q.no 32. Grinding wheel is specified as “A 46 K 5 B 17”. Grain size of a wheel will be
    A : Coarse
    B : Medium
    C : Fine
    D : Very Fine
    Q.no 33. If n=number of divisions required, then find the number of holes to be
    moved in direct indexing
    A : 12/n
    B : 24/n
    C : 40/n
    D : 120/n
    Q.no 34. At high cutting speed, high temperature at tool-chip interface is caused
    by
  53. Heat generation rate increases with an increase in cutting speed
  54. Friction coefficient (μ) decreases with an increase in cutting speed
  55. The time required to transfer the heat decreases with an increase in cutting
    speed
  56. Localization of heat takes place with an increase in cutting speed
    A : 1,3 &4
    B : 1,2,3 &4
    C : 1,2,& 3
    D : 2,3 &4
    Q.no 35. The useful life of a HSS tool machining mild steel at18 m/min is 3 hr.
    Calculate the tool life when the tool operate at 24 m/min.
    A : 12 min
    B : 18 min
    C : 20 min
    D : 24 min
    Q.no 36. In machining operation, Uncut chip thickness t0= 0.8 mm and Chip
    thickness tc=1.2 mm. The correct option for the chip thickness ratio (r) is
    A : 0.4
    B : 0.66
    C : 0.84
    D : 1.5
    Q.no 37. In AJM, surface roughness value will vary between which values?
    A : 0.01 – 0.10 μm
    B : 0.15 – 1.5 μm
    C : 2.0 – 5.0 μm
    D : 7.0 – 10.0 μm
    Q.no 38. Which of the following specified grinding wheel will have Silicon carbide
    abrasive?
    A : Z 46 K 5 B 17
    B : C 600 K 5 B 17
    C : A 8 K 5 B 17
    D : A 80 K 5 B 17
    Q.no 39. Which of the following is not a media of energy transfer on which the
    advanced machining processes are classified?
    A : Reactive atmosphere
    B : Electrons
    C : Electrolyte
    D : Chemical ablation
    Q.no 40. What is the value of abrasive grain flow rate in Abrasive jet machining?
    A : 0.1 – 2 g/min
    B : 3 – 20 g/min
    C : 30 – 56 g/min
    D : 68 – 85 g/min
    Q.no 41. Frequency of tool’s oscillation in USM ranges between?
    A : 5-10 kHz
    B : 10-15 kHz
    C : 18-20 kHz
    D : 25-50 kHz
    Q.no 42. Which one of the following process is worked on principle of Mechanical
    errosion
    A : AJM
    B : EDM
    C : ECM
    D : PAM
    Q.no 43. Which one of the following is a hybrid non-conventional machinig
    process
    A : ECM
    B : EDM
    C : AWJM
    D : LBM
    Q.no 44. In an orthogonal cutting the depth of cut is halved and the feed is double.
    If the chip thickness ratio is unaffected with the changed cutting conditions the
    actual chip thickness will be
    A : Doubled
    B : Halved
    C : Quadrupled
    D : unchanged
    Q.no 45. The swing diameter over the bed is………the height of the center
    measured from the bed of the lathe
    A : Equal to
    B : Twice
    C : Thrice
    D : One -half
    Q.no 46. Find the angle at which the compound rest should be set up to turn taper
    on the workpiece having a length of 20mm, larger diameter 45mm and the
    smaller diameter 30mm.
    A : 2 Degree 9 Minutes
    B : 3 Degree 9 Minutes
    C : 4 Degree 9 Minutes
    D : 5 Degree 9 Minutes
    Q.no 47. It is desired to perform the operations like drilling, reaming, counterboring etc. on a work piece. Which of the following machine will be used?
    A : Sensitive drilling machine
    B : Radial drilling machine
    C : Gang drilling machine
    D : Multiple spindle drilling
    machine
    Q.no 48. The tail stock set over required to turn a taper on the entire length of a
    workpiece having diameters D and d is
    A : D-d / (2L)
    B : D-d /(L)
    C : D-d /(2)
    D : D-d
    Q.no 49. Amplitude of oscillation of tool in USM ranges between?
    A : 0.1-10 μm
    B : 10-40 μm
    C : 50-100 μm
    D : 100-1000 μm
    Q.no 50. Which one of the following process is worked on principle of electrolysis
    using eletrolyte
    A : EDM
    B : USM
    C : AJM
    D : ECM
    Q.no 51. In an orthogonal cutting if the feed is 1.25 mm/rev, the chip thickness
    after cutting is 2 mm, then the chip thickness ratio and shear angle (for rake
    angle 10 Degrees) respectively are
    A : 0.525, 36.62 Degrees
    B : 0.625, 34.62 Degrees
    C : 0.425, 36.42 Degrees
    D : 0.325, 34.62 Degrees
    Q.no 52. A tapered pin is to be prepared on a lathe machine. If the larger diameter
    is 90 mm, smaller diameter is 80 mm, length of the pin is 100 mm, Find the angle
    of taper at which the compound rest to be swivelled around
    A : 3 Degrees and 51 Minutes
    B : 2 Degrees and 15 Minutes
    C : 4 Degrees and 51 Minutes
    D : 2 Degrees and 51 Minutes
    Q.no 53. In orthogonal turning of MS bar of 65 mm diameter machined on a lathe
    with a feed of 0.8 mm was used. A continuous chip of 1.4 mm thickness was
    removed at a rotational speed of 85 rpm. The Chip thickness ratio, Chip reduction
    ratio and Total length of the Chip in One Minute respectively is
    A : 0.5714, 1.75, 9918 mm
    B : 1.75, 0.5714, 9915 mm
    C : 1.75, 9999 mm, 05714,
    D : 57.14, 1.75, 9999 mm
    Q.no 54. In Face Milling,What is the feed per tooth when the main axis spindle
    speed is 500 rpm, number of insert is 10, and table feed is 500mm/min
    A : 0.1 mm/tooth
    B : 0.7 mm/tooth
    C : 1 mm/tooth
    D : 7 mm/tooth
    Q.no 55. In the Taylor’s tool life equation, VT^n = C, the value of n=0.5. The tool life
    has a life of 180 minutes at a cutting speed of 18 m/min. If the tool life is reduced
    to 45 minutes, then the cutting speed will be
    A : 9 m/min
    B : 18 m/min
    C : 36 m/min
    D : 72 m/min
    Q.no 56. A shaft 1200 mm long has a taper of 1:100 for a length of 600 mm. The
    maximum diameter of the shaft to be 80 mm. Determine the minimum diameter
    of staft and amount of setover
    A : 78 mm & 22 mm
    B : 60 mm & 20 mm
    C : 65 mm & 15 mm
    D : 68 mm & 12 mm
    Q.no 57. The time required for machining a workpiece 50 mm dianeter 350 mm
    length, turn all over in four passes. The approach length is 12 mm, Overtravel
    10mm, the feed = 0.5 mm/rev, and cutting speed is 35m/min.
    A : 13.016 min
    B : 10.016 min
    C : 11.016 min
    D : 12.016 min
    Q.no 58. In a drilling operation using a twist drill, the lip angle is 120 degree
    (standard), the spindle speed is 300 rpm, the feed is 0.2 mm/rev and the drill
    diameter is 10 mm,calculate machining time to drill a hole of 30 mm long ?
    A : 0.88 min
    B : 0.54 min
    C : 1.2 min
    D : 3 min
    Q.no 59. A mild steel material is being turn for 50 mm length with a feed rate of
    0.15 mm/rev and spindle speed of 1400 rpm. The time required to cut the material
    in miniutes is
    A : 0.13
    B : 0.23
    C : 0.33
    D : 0.43
    Q.no 60. In face milling,What is the cutting speed when main axis spindle speed is
    350 rpm and the cutter diameter is 125 mm ?
    A : 137.4 m/min
    B : 142 m/min
    C : 150.2 m/min
    D : 130 m/min
    Q.no 1. Which of the following material/s cannot be used for making of nozzle in
    Abrasive jet machining?
    A : Tungsten Carbide
    B : Steel alloy
    C : Sapphire
    D : Synthetic sapphire
    Q.no 2. The hardness of a grinding wheel is determined by the
    A : Hardness of abrasive grains
    B : Ability of the bond to retain abrasives
    C : Hardness of the bond
    D : Ability of the grinding wheel to penetrate the work piece
    Q.no 3. Twist drills are made of
    A : High speed steel
    B : Mild Steel
    C : Stainless steel
    D : High Carbon Steel
    Q.no 4. In Electro discharge machining, materials with low melting point have
    which type of material removal rate?
    A : Very low
    B : Low
    C : Medium
    D : High
    Q.no 5. In which process the material is removed due to the action of abrasive
    grains?
    A : Electron Beam Machining (EBM)
    B : Ultrasonic Machining (USM)
    C : Laser Beam Machining (LBM)
    D : Electrical Discharge Machining (EDM)
    Q.no 6. Which of the following process have the lowest metal removal rate?
    A : Drilling
    B : Milling
    C : Reaming
    D : Honning
    Q.no 7. The operation of producing grooves around the periphery of a cylindrical
    or conical workpiece is called
    A : profile milling
    B : Gang milling
    C : Saw milling
    D : Helical milling
    Q.no 8. In a milling operation, two side milling cutters are mounted with a desired
    distance between them so that both sides of a workpiece can be milled
    simultaneously. This set up is called
    A : Gang milling
    B : Straddle milling
    C : Face milling
    D : Side milling
    Q.no 9. Which of the following method is not used for holding tool in drilling
    machine?
    A : by a sleeve
    B : by four jaw chucks
    C : by a socket
    D : By tool holder
    Q.no 10. How is material removed in Electro discharge machining?
    A : Melt and evaporate
    B : Corrode and break
    C : Mechanical erosion takes place
    D : None of the mentioned
    Q.no 11. Which of the following is a not a surface finishing process?
    A : Honing
    B : Buffing
    C : Lapping
    D : Turning
    Q.no 12. Carbide tipped tools usually have
    A : Negative rake angle
    B : Positive rake angle
    C : Any rake angle
    D : No rake angle
    Q.no 13. Of the following properties of nozzle, which of them does not influence
    the MRR in AJM?
    A : Size
    B : Material
    C : Outside temperature
    D : Distance from work piece
    Q.no 14. Which of the following come under the main components of ECM?
    A : Feed control system
    B : Work piece holding devices
    C : Electrolyte supply system
    D : All of the mentioned
    Q.no 15. Tool life in turning will decrease by maximum extent if we double the….
    A : Depth of cut
    B : Feed
    C : Cutting Velocity
    D : Tool rake angle
    Q.no 16. Which type of adjustment required for gap voltages in ECM?
    A : Continuous adjustment
    B : Discontinuous adjustment
    C : Periodic adjustment
    D : All of the mentioned
    Q.no 17. A grinding ratio of 200 implies that the
    A : Grinding wheel wears 200 times the
    volume of the material removed
    B : grinding wheel wears 0.005 times
    the volume of the material removed
    C : aspect ratio of abrasive
    particles used in the
    grinding wheel is 200
    D : ratio of volume
    of abrasive particle
    to that of grinding
    wheel is 200
    Q.no 18. If l=length of travel of the drill in mm, n=rpm of the drill, s= feed per
    revolution of the drill in mm. Then machining time can be given as_____
    A : (ln)/s B : (ls)/n
    C : l/(n*s)
    D : (1+n)/s
    Q.no 19. Use of tail stock in cylindrical grinding machine is
    A : To drive the work piece
    B : To give feed to the wheel head
    C : To provide Speed to
    grinding wheel
    D : To support the
    other end of the
    work piece
    Q.no 20. The operation of making a cone-shaped enlargement of the end of a hole
    is known as
    A : counter-sinking
    B : Counter-boring
    C : Treppaning
    D : Spot facing
    Q.no 21. Which of the following symbol’s range of alphabet represent soft grain in
    grinding wheel?
    A : A – H
    B : I – P
    C : Q – T
    D : T – Z
    Q.no 22. Cast iron during machining produces
    A : Continuous chips
    B : Dis-Continuous chips
    C : Continuous chips with
    built-up-edge
    D : None of these
    Q.no 23. Burnishing is a process of
    A : Cold working
    B : Hot working
    C : Press working
    D : Metal Cutting
    Q.no 24. Lapping is an operation of_________
    A : Making a cone-shaped enlargement
    of the end of a hole
    B : Smoothing and squaring the
    surface around a hole
    C : Sizing and finishing a
    small diameter hole
    D : Producing a hole by
    removing metal along
    the circumference of
    a hollow cutting tool
    Q.no 25. Discontinuous chips are formed during machine of
    A : Brittle metals
    B : Ductile metals
    C : Soft metals
    D : Tough metals
    Q.no 26. A dynamo-meter is a device used for the measurement of
    A : Chip thickness ratio
    B : Forces during metal cutting
    C : Wear of the cutting tool
    D : Deflection of the cutting tool
    Q.no 27. In oblique cutting of metals, the cutting edge of the tools is.
    A : Perpendicular to the workpiece
    B : Perpendicular to the direction of
    tool travel
    C : Parallel to the direction of
    tool travel
    D : Inclined at an angle less
    than 90 to the direction of tool travel
    Q.no 28. Feed control system is responsible for which action in ECM?
    A : Giving feed to tool
    B : Electrolyte supply
    C : Power supply
    D : None of the mentioned
    Q.no 29. As the abrasive flow rate increases, what happens to the volumetric
    removal rate in AJM?
    A : Increases
    B : Decreases
    C : Increase and then decrease
    D : Decrease and then increase
    Q.no 30. Which of the following processes is generally applied for dentistry work
    like to drill fine holes of particular shape in teeth?
    A : Electrical Discharge Machining (EDM)
    B : Electron Beam Machining (EBM)
    C : Laser Beam Machining (LBM)
    D : Ultrasonic Machining (USM)
    Q.no 31. If n=number of divisions required, then find the number of holes to be
    moved in direct indexing
    A : 12/n
    B : 24/n
    C : 40/n
    D : 120/n
    Q.no 32. In AJM, surface roughness value will vary between which values?
    A : 0.01 – 0.10 μm
    B : 0.15 – 1.5 μm
    C : 2.0 – 5.0 μm
    D : 7.0 – 10.0 μm
    Q.no 33. In Abrasive jet machining, what may be the size of the abrasive grains
    used?
    A : 10 – 40 μm
    B : 50 – 100 μm
    C : 100 – 150 μm
    D : 200 – 300 μm
    Q.no 34. The useful life of a HSS tool machining mild steel at18 m/min is 3 hr.
    Calculate the tool life when the tool operate at 24 m/min.
    A : 12 min
    B : 18 min
    C : 20 min
    D : 24 min
    Q.no 35. In machining operation, Uncut chip thickness t0= 0.8 mm and Chip
    thickness tc=1.2 mm. The correct option for the chip thickness ratio (r) is
    A : 0.4
    B : 0.66
    C : 0.84
    D : 1.5
    Q.no 36. Which one of the following is not a hybrid non-conventional machinig
    process
    A : ECDM
    B : AWJM
    C : Ultrasonic assisted EDM
    D : EBM
    Q.no 37. Which of the following specified grinding wheel will have Aluminum
    oxide abrasive?
    A : Z 46 K 5 B 17
    B : C 600 K 5 B 17
    C : C 8 K 5 B 17
    D : A 80 K 5 B 17
    Q.no 38. What is the general life of Tungsten carbide material nozzle in AJM?
    A : 1 – 8 hrs
    B : 2 – 5 hrs
    C : 10 – 15 hrs
    D : 25 – 40 hrs
    Q.no 39. Grinding wheel is specified as “A 46 K 5 B 17”. Grain size of a wheel will be
    A : Coarse
    B : Medium
    C : Fine
    D : Very Fine
    Q.no 40. At high cutting speed, high temperature at tool-chip interface is caused
    by
  57. Heat generation rate increases with an increase in cutting speed
  58. Friction coefficient (μ) decreases with an increase in cutting speed
  59. The time required to transfer the heat decreases with an increase in cutting
    speed
  60. Localization of heat takes place with an increase in cutting speed
    A : 1,3 &4
    B : 1,2,3 &4
    C : 1,2,& 3
    D : 2,3 &4
    Q.no 41. Which one of the following process is worked on principle of electrolysis
    using eletrolyte
    A : EDM
    B : USM
    C : AJM
    D : ECM
    Q.no 42. Which of the following is not a media of energy transfer on which the
    advanced machining processes are classified?
    A : Reactive atmosphere
    B : Electrons
    C : Electrolyte
    D : Chemical ablation
    Q.no 43. Find the angle at which the compound rest should be set up to turn taper
    on the workpiece having a length of 20mm, larger diameter 45mm and the
    smaller diameter 30mm.
    A : 2 Degree 9 Minutes
    B : 3 Degree 9 Minutes
    C : 4 Degree 9 Minutes
    D : 5 Degree 9 Minutes
    Q.no 44. Which of the following specified grinding wheel will have Silicon carbide
    abrasive?
    A : Z 46 K 5 B 17
    B : C 600 K 5 B 17
    C : A 8 K 5 B 17
    D : A 80 K 5 B 17
    Q.no 45. The swing diameter over the bed is………the height of the center
    measured from the bed of the lathe
    A : Equal to
    B : Twice
    C : Thrice
    D : One -half
    Q.no 46. It is desired to perform the operations like drilling, reaming, counterboring etc. on a work piece. Which of the following machine will be used?
    A : Sensitive drilling machine
    B : Radial drilling machine
    C : Gang drilling machine
    D : Multiple spindle drilling
    machine
    Q.no 47. What is the value of abrasive grain flow rate in Abrasive jet machining?
    A : 0.1 – 2 g/min
    B : 3 – 20 g/min
    C : 30 – 56 g/min
    D : 68 – 85 g/min
    Q.no 48. Frequency of tool’s oscillation in USM ranges between?
    A : 5-10 kHz
    B : 10-15 kHz
    C : 18-20 kHz
    D : 25-50 kHz
    Q.no 49. Amplitude of oscillation of tool in USM ranges between?
    A : 0.1-10 μm
    B : 10-40 μm
    C : 50-100 μm
    D : 100-1000 μm
    Q.no 50. The tail stock set over required to turn a taper on the entire length of a
    workpiece having diameters D and d is
    A : D-d / (2L)
    B : D-d /(L)
    C : D-d /(2)
    D : D-d
    Q.no 51. In an orthogonal cutting if the feed is 1.25 mm/rev, the chip thickness
    after cutting is 2 mm, then the chip thickness ratio and shear angle (for rake
    angle 10 Degrees) respectively are
    A : 0.525, 36.62 Degrees
    B : 0.625, 34.62 Degrees
    C : 0.425, 36.42 Degrees
    D : 0.325, 34.62 Degrees
    Q.no 52. Calculate the cutting speed of drilling operation when diameter of drill is
    10 mm and rotational speed of drill is 200 r.p.m.
    A : 6.283 m/min
    B : 3.142 m/min
    C : 8.362 m/min
    D : 10.216 m/min
    Q.no 53. In orthogonal cutting feed is 0.2 mm/rev, Chip thickness is 0.3 mm, Rake
    angle is 15 degrees. Then the shear plane angle in degrees is
    A : 27.9
    B : 17.9
    C : 37.9
    D : 47.9
    Q.no 54. Time required for one complete cut on the piece of work 350 mm long
    and 50 mm in diameter. the cutting speed is 35 m/min and feed is 0.5 mm/rev.
    A : 2.1 Min
    B : 3.1 Min
    C : 3.5 Min
    D : 3.6 Min
    Q.no 55. Using the Taylor equation VT^n=c, calculate the percentage increase in
    tool life when the cutting speed is reduced is reduced by 50% (n=0.5 and c=400)
    A : 300%
    B : 400%
    C : 100%
    D : 200%
    Q.no 56. In a drilling operation using a twist drill, the lip angle is 120 degree
    (standard), the spindle speed is 300 rpm, the feed is 0.2 mm/rev and the drill
    diameter is 10 mm,calculate machining time to drill a hole of 30 mm long ?
    A : 0.88 min
    B : 0.54 min
    C : 1.2 min
    D : 3 min
    Q.no 57. In the Taylor’s tool life equation, VT^n = C, the value of n=0.5. The tool life
    has a life of 180 minutes at a cutting speed of 18 m/min. If the tool life is reduced
    to 45 minutes, then the cutting speed will be
    A : 9 m/min
    B : 18 m/min
    C : 36 m/min
    D : 72 m/min
    Q.no 58. A tapered pin is to be prepared on a lathe machine. If the larger diameter
    is 90 mm, smaller diameter is 80 mm, length of the pin is 100 mm, Find the angle
    of taper at which the compound rest to be swivelled around
    A : 3 Degrees and 51 Minutes
    B : 2 Degrees and 15 Minutes
    C : 4 Degrees and 51 Minutes
    D : 2 Degrees and 51 Minutes
    Q.no 59. A mild steel material is being turn for 50 mm length with a feed rate of
    0.15 mm/rev and spindle speed of 1400 rpm. The time required to cut the material
    in miniutes is
    A : 0.13
    B : 0.23
    C : 0.33
    D : 0.43
    Q.no 60. The time required for machining a workpiece 50 mm dianeter 350 mm
    length, turn all over in four passes. The approach length is 12 mm, Overtravel
    10mm, the feed = 0.5 mm/rev, and cutting speed is 35m/min.
    A : 13.016 min
    B : 10.016 min
    C : 11.016 min
    D : 12.016 min
    Q.no 1. The angle between the face and flank of the single point cutting tool is
    known as
    A : Rake angle
    B : Clearance angle
    C : Lip angle
    D : Point angle
    Q.no 2. The usual value of the point angle of a drill is
    A : 70°
    B : 100°
    C : 118°
    D : 130°
    Q.no 3. A grinding wheel is said to be of if it holds the abrasive grains
    more securely
    A : Soft grade
    B : Medium grade
    C : Hard grade
    D : very soft grade
    Q.no 4. In centreless grinding, workpiece centre will be
    A : Above the line joining the two
    wheel centres
    B : Below the line joining the two
    wheel centres
    C : On the line joining the two
    wheel centres
    D : At the intersection of the
    line joining the wheel
    centres with the workpiece
    Q.no 5. If a cutting tool is designed as 8°-14°-6°-8°-8°-19°-1mm what is the side Rake
    angle of the tool
    A : 14°
    B : 19°
    C : 6°
    D : 8°
    Q.no 6. Which of the following material/s cannot be used for making of nozzle in
    Abrasive jet machining?
    A : Tungsten Carbide
    B : Steel alloy
    C : Sapphire
    D : Synthetic sapphire
    Q.no 7. The hardness of a grinding wheel is determined by the
    A : Hardness of abrasive grains
    B : Ability of the bond to retain abrasives
    C : Hardness of the bond
    D : Ability of the grinding wheel to penetrate the work piece
    Q.no 8. Which of the following range of numbers represents dense structure of
    abrasives?
    A : 0-7
    B : 8-10
    C : 10-12
    D : 12-16
    Q.no 9. The tool life is said to be over if
    A : Poor surface finish is obtained
    B : There is sudden increase in cutting
    forces and power consumption
    C : Overheating and fuming due to
    heat of friction starts
    D : All of the above
    Q.no 10. Grinding wheel Tool signature consists of _
    elements
    A : 4
    B : 5
    C : 6
    D : 7
    Q.no 11. Removing dull grains in order to make grinding wheel sharp is known as
    A : Loading
    B : Glazing
    C : Dressing
    D : Trueing
    Q.no 12. In centerless grinders, the regulating wheel is inclined at
    A : 0° to 8°
    B : 9° to 15°
    C : 16° to 20°
    D : 21° to 25°
    Q.no 13. For which of the following operations, broaching can be used?
    A : Threading
    B : Grinding
    C : Spline cutting
    D : Increasing the size of the
    existing hole for a certain
    length
    Q.no 14. The main purpose of a boring operation, as compared to drilling, is to
    A : Drill a hole
    B : Finish the drilled hole
    C : Correct the hole
    D : Enlarge the existing hole
    Q.no 15. A half nut is
    A : Damaged nut
    B : Nut manufactured in parts
    C : Nut with half the standard pitch
    D : Mechanism that locks the
    lathe carriage to the load
    screw for thread cutting
    Q.no 16. A coarse grained grinding wheel is used to grind
    A : Soft and Hard materials
    B : Soft and ductile materials
    C : Hard Material
    D : Tough Material
    Q.no 17. Shear angle varies with
    A : Cutting speed
    B : Feed
    C : Depth of cut
    D : Work piece materials and
    tool geometry
    Q.no 18. In Abrasive jet machining, work piece material of removed by which of
    the following means?
    A : Vaporization
    B : Electro plating
    C : Mechanical abrasion
    D : Corrosion
    Q.no 19. Which of the following process has highest rate of metal removal
    A : Electric Discharge Machining (EDM)
    B : Electro-Chemical Machining (ECM)
    C : Ultrasonic Machining (USM)
    D : Laser Beam Machining (LBM)
    Q.no 20. Steady rest is
    A : An additional support provided for long jobs
    B : Used while turning unsymmetrical
    objects
    C : Used during Plain cutting only
    D : Used when a lathe is
    subject to vibrations
    Q.no 21. When the metal is removed by erosion caused by rapidly recurring spark
    discharges between the tool and work, the process is known as
    A : Electrochemical machining
    B : Electro-discharge machining
    C : Ultrasonic machining
    D : None of these
    Q.no 22. In __ operation, the chip thickness is minimum at the beginning of
    the
    A : conventional milling
    B : climb milling
    C : face milling
    D : end milling
    Q.no 23. Which of the following processes is generally applied for dentistry work
    like to drill fine holes of particular shape in teeth?
    A : Electrical Discharge Machining (EDM)
    B : Electron Beam Machining (EBM)
    C : Laser Beam Machining (LBM)
    D : Ultrasonic Machining (USM)
    Q.no 24. In oblique cutting of metals, the cutting edge of the tools is.
    A : Perpendicular to the workpiece
    B : Perpendicular to the direction of
    tool travel
    C : Parallel to the direction of
    tool travel
    D : Inclined at an angle less
    than 90 to the direction of tool travel
    Q.no 25. Which of the following symbol’s range of alphabet represent soft grain in
    grinding wheel?
    A : A – H
    B : I – P
    C : Q – T
    D : T – Z
    Q.no 26. As the abrasive flow rate increases, what happens to the volumetric
    removal rate in AJM?
    A : Increases
    B : Decreases
    C : Increase and then decrease
    D : Decrease and then increase
    Q.no 27. Feed control system is responsible for which action in ECM?
    A : Giving feed to tool
    B : Electrolyte supply
    C : Power supply
    D : None of the mentioned
    Q.no 28. Which of the following method is not used for holding tool in drilling
    machine?
    A : by a sleeve
    B : by four jaw chucks
    C : by a socket
    D : By tool holder
    Q.no 29. In which process the material is removed due to the action of abrasive
    grains?
    A : Electron Beam Machining (EBM)
    B : Ultrasonic Machining (USM)
    C : Laser Beam Machining (LBM)
    D : Electrical Discharge Machining (EDM)
    Q.no 30. Which of the following come under the main components of ECM?
    A : Feed control system
    B : Work piece holding devices
    C : Electrolyte supply system
    D : All of the mentioned
    Q.no 31. Which one of the following process is worked on principle of Mechanical
    errosion
    A : AJM
    B : EDM
    C : ECM
    D : PAM
    Q.no 32. At high cutting speed, high temperature at tool-chip interface is caused
    by
  61. Heat generation rate increases with an increase in cutting speed
  62. Friction coefficient (μ) decreases with an increase in cutting speed
  63. The time required to transfer the heat decreases with an increase in cutting
    speed
  64. Localization of heat takes place with an increase in cutting speed
    A : 1,3 &4
    B : 1,2,3 &4
    C : 1,2,& 3
    D : 2,3 &4
    Q.no 33. The useful life of a HSS tool machining mild steel at18 m/min is 3 hr.
    Calculate the tool life when the tool operate at 24 m/min.
    A : 12 min
    B : 18 min
    C : 20 min
    D : 24 min
    Q.no 34. Which one of the following is a hybrid non-conventional machinig
    process
    A : ECM
    B : EDM
    C : AWJM
    D : LBM
    Q.no 35. In an orthogonal cutting the depth of cut is halved and the feed is double.
    If the chip thickness ratio is unaffected with the changed cutting conditions the
    actual chip thickness will be
    A : Doubled
    B : Halved
    C : Quadrupled
    D : unchanged
    Q.no 36. In AJM, surface roughness value will vary between which values?
    A : 0.01 – 0.10 μm
    B : 0.15 – 1.5 μm
    C : 2.0 – 5.0 μm
    D : 7.0 – 10.0 μm
    Q.no 37. What is the general life of Tungsten carbide material nozzle in AJM?
    A : 1 – 8 hrs
    B : 2 – 5 hrs
    C : 10 – 15 hrs
    D : 25 – 40 hrs
    Q.no 38. Which one of the following is not a hybrid non-conventional machinig
    process
    A : ECDM
    B : AWJM
    C : Ultrasonic assisted EDM
    D : EBM
    Q.no 39. Which of the following specified grinding wheel will have Aluminum
    oxide abrasive?
    A : Z 46 K 5 B 17
    B : C 600 K 5 B 17
    C : C 8 K 5 B 17
    D : A 80 K 5 B 17
    Q.no 40. Grinding wheel is specified as “A 46 K 5 B 17”. Grain size of a wheel will be
    A : Coarse
    B : Medium
    C : Fine
    D : Very Fine
    Q.no 41. In machining operation, Uncut chip thickness t0= 0.8 mm and Chip
    thickness tc=1.2 mm. The correct option for the chip thickness ratio (r) is
    A : 0.4
    B : 0.66
    C : 0.84
    D : 1.5
    Q.no 42. If n=number of divisions required, then find the number of holes to be
    moved in direct indexing
    A : 12/n
    B : 24/n
    C : 40/n
    D : 120/n
    Q.no 43. In Abrasive jet machining, what may be the size of the abrasive grains
    used?
    A : 10 – 40 μm
    B : 50 – 100 μm
    C : 100 – 150 μm
    D : 200 – 300 μm
    Q.no 44. Which of the following specified grinding wheel will have Silicon carbide
    abrasive?
    A : Z 46 K 5 B 17
    B : C 600 K 5 B 17
    C : A 8 K 5 B 17
    D : A 80 K 5 B 17
    Q.no 45. Frequency of tool’s oscillation in USM ranges between?
    A : 5-10 kHz
    B : 10-15 kHz
    C : 18-20 kHz
    D : 25-50 kHz
    Q.no 46. Amplitude of oscillation of tool in USM ranges between?
    A : 0.1-10 μm
    B : 10-40 μm
    C : 50-100 μm
    D : 100-1000 μm
    Q.no 47. The tail stock set over required to turn a taper on the entire length of a
    workpiece having diameters D and d is
    A : D-d / (2L)
    B : D-d /(L)
    C : D-d /(2)
    D : D-d
    Q.no 48. It is desired to perform the operations like drilling, reaming, counterboring etc. on a work piece. Which of the following machine will be used?
    A : Sensitive drilling machine
    B : Radial drilling machine
    C : Gang drilling machine
    D : Multiple spindle drilling
    machine
    Q.no 49. Which one of the following process is worked on principle of electrolysis
    using eletrolyte
    A : EDM
    B : USM
    C : AJM
    D : ECM
    Q.no 50. Find the angle at which the compound rest should be set up to turn taper
    on the workpiece having a length of 20mm, larger diameter 45mm and the
    smaller diameter 30mm.
    A : 2 Degree 9 Minutes
    B : 3 Degree 9 Minutes
    C : 4 Degree 9 Minutes
    D : 5 Degree 9 Minutes
    Q.no 51. Calculate the cutting speed of drilling operation when diameter of drill is
    10 mm and rotational speed of drill is 200 r.p.m.
    A : 6.283 m/min
    B : 3.142 m/min
    C : 8.362 m/min
    D : 10.216 m/min
    Q.no 52. In orthogonal cutting feed is 0.2 mm/rev, Chip thickness is 0.3 mm, Rake
    angle is 15 degrees. Then the shear plane angle in degrees is
    A : 27.9
    B : 17.9
    C : 37.9
    D : 47.9
    Q.no 53. In orthogonal turning of MS bar of 65 mm diameter machined on a lathe
    with a feed of 0.8 mm was used. A continuous chip of 1.4 mm thickness was
    removed at a rotational speed of 85 rpm. The Chip thickness ratio, Chip reduction
    ratio and Total length of the Chip in One Minute respectively is
    A : 0.5714, 1.75, 9918 mm
    B : 1.75, 0.5714, 9915 mm
    C : 1.75, 9999 mm, 05714,
    D : 57.14, 1.75, 9999 mm
    Q.no 54. In Face Milling,What is the feed per tooth when the main axis spindle
    speed is 500 rpm, number of insert is 10, and table feed is 500mm/min
    A : 0.1 mm/tooth
    B : 0.7 mm/tooth
    C : 1 mm/tooth
    D : 7 mm/tooth
    Q.no 55. In face milling,What is the cutting speed when main axis spindle speed is
    350 rpm and the cutter diameter is 125 mm ?
    A : 137.4 m/min
    B : 142 m/min
    C : 150.2 m/min
    D : 130 m/min
    Q.no 56. A shaft 1200 mm long has a taper of 1:100 for a length of 600 mm. The
    maximum diameter of the shaft to be 80 mm. Determine the minimum diameter
    of staft and amount of setover
    A : 78 mm & 22 mm
    B : 60 mm & 20 mm
    C : 65 mm & 15 mm
    D : 68 mm & 12 mm
    Q.no 57. In an orthogonal cutting if the feed is 1.25 mm/rev, the chip thickness
    after cutting is 2 mm, then the chip thickness ratio and shear angle (for rake
    angle 10 Degrees) respectively are
    A : 0.525, 36.62 Degrees
    B : 0.625, 34.62 Degrees
    C : 0.425, 36.42 Degrees
    D : 0.325, 34.62 Degrees
    Q.no 58. Using the Taylor equation VT^n=c, calculate the percentage increase in
    tool life when the cutting speed is reduced is reduced by 50% (n=0.5 and c=400)
    A : 300%
    B : 400%
    C : 100%
    D : 200%
    Q.no 59. In the Taylor’s tool life equation, VT^n = C, the value of n=0.5. The tool life
    has a life of 180 minutes at a cutting speed of 18 m/min. If the tool life is reduced
    to 45 minutes, then the cutting speed will be
    A : 9 m/min
    B : 18 m/min
    C : 36 m/min
    D : 72 m/min
    Q.no 60. A tapered pin is to be prepared on a lathe machine. If the larger diameter
    is 90 mm, smaller diameter is 80 mm, length of the pin is 100 mm, Find the angle
    of taper at which the compound rest to be swivelled around
    A : 3 Degrees and 51 Minutes
    B : 2 Degrees and 15 Minutes
    C : 4 Degrees and 51 Minutes
    D : 2 Degrees and 51 Minutes
    Q.no 1. The usual value of the point angle of a drill is
    A : 70°
    B : 100°
    C : 118°
    D : 130°
    Q.no 2. Use of tail stock in cylindrical grinding machine is
    A : To drive the work piece
    B : To give feed to the wheel head
    C : To provide Speed to
    grinding wheel
    D : To support the
    other end of the
    work piece
    Q.no 3. Which type of adjustment required for gap voltages in ECM?
    A : Continuous adjustment
    B : Discontinuous adjustment
    C : Periodic adjustment
    D : All of the mentioned
    Q.no 4. If l=length of travel of the drill in mm, n=rpm of the drill, s= feed per
    revolution of the drill in mm. Then machining time can be given as_____
    A : (ln)/s B : (ls)/n
    C : l/(n*s)
    D : (1+n)/s
    Q.no 5. The operation of making a cone-shaped enlargement of the end of a hole is
    known as
    A : counter-sinking
    B : Counter-boring
    C : Treppaning
    D : Spot facing
    Q.no 6. The operation of producing grooves around the periphery of a cylindrical
    or conical workpiece is called
    A : profile milling
    B : Gang milling
    C : Saw milling
    D : Helical milling
    Q.no 7. A dynamo-meter is a device used for the measurement of
    A : Chip thickness ratio
    B : Forces during metal cutting
    C : Wear of the cutting tool
    D : Deflection of the cutting tool
    Q.no 8. Carbide tipped tools usually have
    A : Negative rake angle
    B : Positive rake angle
    C : Any rake angle
    D : No rake angle
    Q.no 9. Which of the following process have the lowest metal removal rate?
    A : Drilling
    B : Milling
    C : Reaming
    D : Honning
    Q.no 10. Tool life in turning will decrease by maximum extent if we double the….
    A : Depth of cut
    B : Feed
    C : Cutting Velocity
    D : Tool rake angle
    Q.no 11. Lapping is an operation of_________
    A : Making a cone-shaped enlargement
    of the end of a hole
    B : Smoothing and squaring the
    surface around a hole
    C : Sizing and finishing a
    small diameter hole
    D : Producing a hole by
    removing metal along
    the circumference of
    a hollow cutting tool
    Q.no 12. A grinding ratio of 200 implies that the
    A : Grinding wheel wears 200 times the
    volume of the material removed
    B : grinding wheel wears 0.005 times
    the volume of the material removed
    C : aspect ratio of abrasive
    particles used in the
    grinding wheel is 200
    D : ratio of volume
    of abrasive particle
    to that of grinding
    wheel is 200
    Q.no 13. In Electro discharge machining, materials with low melting point have
    which type of material removal rate?
    A : Very low
    B : Low
    C : Medium
    D : High
    Q.no 14. Twist drills are made of
    A : High speed steel
    B : Mild Steel
    C : Stainless steel
    D : High Carbon Steel
    Q.no 15. Burnishing is a process of
    A : Cold working
    B : Hot working
    C : Press working
    D : Metal Cutting
    Q.no 16. In a milling operation, two side milling cutters are mounted with a
    desired distance between them so that both sides of a workpiece can be milled
    simultaneously. This set up is called
    A : Gang milling
    B : Straddle milling
    C : Face milling
    D : Side milling
    Q.no 17. Cast iron during machining produces
    A : Continuous chips
    B : Dis-Continuous chips
    C : Continuous chips with
    built-up-edge
    D : None of these
    Q.no 18. How is material removed in Electro discharge machining?
    A : Melt and evaporate
    B : Corrode and break
    C : Mechanical erosion takes place
    D : None of the mentioned
    Q.no 19. The angle between the face and flank of the single point cutting tool is
    known as
    A : Rake angle
    B : Clearance angle
    C : Lip angle
    D : Point angle
    Q.no 20. Discontinuous chips are formed during machine of
    A : Brittle metals
    B : Ductile metals
    C : Soft metals
    D : Tough metals
    Q.no 21. Which of the following is a not a surface finishing process?
    A : Honing
    B : Buffing
    C : Lapping
    D : Turning
    Q.no 22. Of the following properties of nozzle, which of them does not influence
    the MRR in AJM?
    A : Size
    B : Material
    C : Outside temperature
    D : Distance from work piece
    Q.no 23. Which of the following process has highest rate of metal removal
    A : Electric Discharge Machining (EDM)
    B : Electro-Chemical Machining (ECM)
    C : Ultrasonic Machining (USM)
    D : Laser Beam Machining (LBM)
    Q.no 24. In centreless grinding, workpiece centre will be
    A : Above the line joining the two
    wheel centres
    B : Below the line joining the two
    wheel centres
    C : On the line joining the two
    wheel centres
    D : At the intersection of the
    line joining the wheel
    centres with the workpiece
    Q.no 25. Which of the following material/s cannot be used for making of nozzle in
    Abrasive jet machining?
    A : Tungsten Carbide
    B : Steel alloy
    C : Sapphire
    D : Synthetic sapphire
    Q.no 26. For which of the following operations, broaching can be used?
    A : Threading
    B : Grinding
    C : Spline cutting
    D : Increasing the size of the
    existing hole for a certain
    length
    Q.no 27. Shear angle varies with
    A : Cutting speed
    B : Feed
    C : Depth of cut
    D : Work piece materials and
    tool geometry
    Q.no 28. Grinding wheel Tool signature consists of __ elements
    A : 4
    B : 5
    C : 6
    D : 7
    Q.no 29. As the abrasive flow rate increases, what happens to the volumetric
    removal rate in AJM?
    A : Increases
    B : Decreases
    C : Increase and then decrease
    D : Decrease and then increase
    Q.no 30. Which of the following range of numbers represents dense structure of
    abrasives?
    A : 0-7
    B : 8-10
    C : 10-12
    D : 12-16
    Q.no 31. Which one of the following is a hybrid non-conventional machinig
    process
    A : ECM
    B : EDM
    C : AWJM
    D : LBM
    Q.no 32. The swing diameter over the bed is………the height of the center
    measured from the bed of the lathe
    A : Equal to
    B : Twice
    C : Thrice
    D : One -half
    Q.no 33. Which of the following is not a media of energy transfer on which the
    advanced machining processes are classified?
    A : Reactive atmosphere
    B : Electrons
    C : Electrolyte
    D : Chemical ablation
    Q.no 34. In an orthogonal cutting the depth of cut is halved and the feed is double.
    If the chip thickness ratio is unaffected with the changed cutting conditions the
    actual chip thickness will be
    A : Doubled
    B : Halved
    C : Quadrupled
    D : unchanged
    Q.no 35. Which one of the following process is worked on principle of Mechanical
    errosion
    A : AJM
    B : EDM
    C : ECM
    D : PAM
    Q.no 36. At high cutting speed, high temperature at tool-chip interface is caused
    by
  65. Heat generation rate increases with an increase in cutting speed
  66. Friction coefficient (μ) decreases with an increase in cutting speed
  67. The time required to transfer the heat decreases with an increase in cutting
    speed
  68. Localization of heat takes place with an increase in cutting speed
    A : 1,3 &4
    B : 1,2,3 &4
    C : 1,2,& 3
    D : 2,3 &4
    Q.no 37. What is the value of abrasive grain flow rate in Abrasive jet machining?
    A : 0.1 – 2 g/min
    B : 3 – 20 g/min
    C : 30 – 56 g/min
    D : 68 – 85 g/min
    Q.no 38. Which one of the following is not a hybrid non-conventional machinig
    process
    A : ECDM
    B : AWJM
    C : Ultrasonic assisted EDM
    D : EBM
    Q.no 39. In AJM, surface roughness value will vary between which values?
    A : 0.01 – 0.10 μm
    B : 0.15 – 1.5 μm
    C : 2.0 – 5.0 μm
    D : 7.0 – 10.0 μm
    Q.no 40. What is the general life of Tungsten carbide material nozzle in AJM?
    A : 1 – 8 hrs
    B : 2 – 5 hrs
    C : 10 – 15 hrs
    D : 25 – 40 hrs
    Q.no 41. The useful life of a HSS tool machining mild steel at18 m/min is 3 hr.
    Calculate the tool life when the tool operate at 24 m/min.
    A : 12 min
    B : 18 min
    C : 20 min
    D : 24 min
    Q.no 42. It is desired to perform the operations like drilling, reaming, counterboring etc. on a work piece. Which of the following machine will be used?
    A : Sensitive drilling machine
    B : Radial drilling machine
    C : Gang drilling machine
    D : Multiple spindle drilling
    machine
    Q.no 43. Amplitude of oscillation of tool in USM ranges between?
    A : 0.1-10 μm
    B : 10-40 μm
    C : 50-100 μm
    D : 100-1000 μm
    Q.no 44. If n=number of divisions required, then find the number of holes to be
    moved in direct indexing
    A : 12/n
    B : 24/n
    C : 40/n
    D : 120/n
    Q.no 45. The tail stock set over required to turn a taper on the entire length of a
    workpiece having diameters D and d is
    A : D-d / (2L)
    B : D-d /(L)
    C : D-d /(2)
    D : D-d
    Q.no 46. In Abrasive jet machining, what may be the size of the abrasive grains
    used?
    A : 10 – 40 μm
    B : 50 – 100 μm
    C : 100 – 150 μm
    D : 200 – 300 μm
    Q.no 47. In machining operation, Uncut chip thickness t0= 0.8 mm and Chip
    thickness tc=1.2 mm. The correct option for the chip thickness ratio (r) is
    A : 0.4
    B : 0.66
    C : 0.84
    D : 1.5
    Q.no 48. Which one of the following process is worked on principle of electrolysis
    using eletrolyte
    A : EDM
    B : USM
    C : AJM
    D : ECM
    Q.no 49. Frequency of tool’s oscillation in USM ranges between?
    A : 5-10 kHz
    B : 10-15 kHz
    C : 18-20 kHz
    D : 25-50 kHz
    Q.no 50. Find the angle at which the compound rest should be set up to turn taper
    on the workpiece having a length of 20mm, larger diameter 45mm and the
    smaller diameter 30mm.
    A : 2 Degree 9 Minutes
    B : 3 Degree 9 Minutes
    C : 4 Degree 9 Minutes
    D : 5 Degree 9 Minutes
    Q.no 51. In a drilling operation using a twist drill, the lip angle is 120 degree
    (standard), the spindle speed is 300 rpm, the feed is 0.2 mm/rev and the drill
    diameter is 10 mm,calculate machining time to drill a hole of 30 mm long ?
    A : 0.88 min
    B : 0.54 min
    C : 1.2 min
    D : 3 min
    Q.no 52. Time required for one complete cut on the piece of work 350 mm long
    and 50 mm in diameter. the cutting speed is 35 m/min and feed is 0.5 mm/rev.
    A : 2.1 Min
    B : 3.1 Min
    C : 3.5 Min
    D : 3.6 Min
    Q.no 53. Calculate the cutting speed of drilling operation when diameter of drill is
    10 mm and rotational speed of drill is 200 r.p.m.
    A : 6.283 m/min
    B : 3.142 m/min
    C : 8.362 m/min
    D : 10.216 m/min
    Q.no 54. The time required for machining a workpiece 50 mm dianeter 350 mm
    length, turn all over in four passes. The approach length is 12 mm, Overtravel
    10mm, the feed = 0.5 mm/rev, and cutting speed is 35m/min.
    A : 13.016 min
    B : 10.016 min
    C : 11.016 min
    D : 12.016 min
    Q.no 55. A mild steel material is being turn for 50 mm length with a feed rate of
    0.15 mm/rev and spindle speed of 1400 rpm. The time required to cut the material
    in miniutes is
    A : 0.13
    B : 0.23
    C : 0.33
    D : 0.43
    Q.no 56. In orthogonal cutting feed is 0.2 mm/rev, Chip thickness is 0.3 mm, Rake
    angle is 15 degrees. Then the shear plane angle in degrees is
    A : 27.9
    B : 17.9
    C : 37.9
    D : 47.9
    Q.no 57. A tapered pin is to be prepared on a lathe machine. If the larger diameter
    is 90 mm, smaller diameter is 80 mm, length of the pin is 100 mm, Find the angle
    of taper at which the compound rest to be swivelled around
    A : 3 Degrees and 51 Minutes
    B : 2 Degrees and 15 Minutes
    C : 4 Degrees and 51 Minutes
    D : 2 Degrees and 51 Minutes
    Q.no 58. In orthogonal turning of MS bar of 65 mm diameter machined on a lathe
    with a feed of 0.8 mm was used. A continuous chip of 1.4 mm thickness was
    removed at a rotational speed of 85 rpm. The Chip thickness ratio, Chip reduction
    ratio and Total length of the Chip in One Minute respectively is
    A : 0.5714, 1.75, 9918 mm
    B : 1.75, 0.5714, 9915 mm
    C : 1.75, 9999 mm, 05714,
    D : 57.14, 1.75, 9999 mm
    Q.no 59. Using the Taylor equation VT^n=c, calculate the percentage increase in
    tool life when the cutting speed is reduced is reduced by 50% (n=0.5 and c=400)
    A : 300%
    B : 400%
    C : 100%
    D : 200%
    Q.no 60. In face milling,What is the cutting speed when main axis spindle speed is
    350 rpm and the cutter diameter is 125 mm ?
    A : 137.4 m/min
    B : 142 m/min
    C : 150.2 m/min
    D : 130 m/min
    Q.no 1. Carbide tipped tools usually have
    A : Negative rake angle
    B : Positive rake angle
    C : Any rake angle
    D : No rake angle
    Q.no 2. Tool life in turning will decrease by maximum extent if we double the….
    A : Depth of cut
    B : Feed
    C : Cutting Velocity
    D : Tool rake angle
    Q.no 3. The tool life is said to be over if
    A : Poor surface finish is obtained
    B : There is sudden increase in cutting
    forces and power consumption
    C : Overheating and fuming due to
    heat of friction starts
    D : All of the above
    Q.no 4. Which of the following processes is generally applied for dentistry work
    like to drill fine holes of particular shape in teeth?
    A : Electrical Discharge Machining (EDM)
    B : Electron Beam Machining (EBM)
    C : Laser Beam Machining (LBM)
    D : Ultrasonic Machining (USM)
    Q.no 5. A half nut is
    A : Damaged nut
    B : Nut manufactured in parts
    C : Nut with half the standard pitch
    D : Mechanism that locks the
    lathe carriage to the load
    screw for thread cutting
    Q.no 6. Which of the following method is not used for holding tool in drilling
    machine?
    A : by a sleeve
    B : by four jaw chucks
    C : by a socket
    D : By tool holder
    Q.no 7. Which type of adjustment required for gap voltages in ECM?
    A : Continuous adjustment
    B : Discontinuous adjustment
    C : Periodic adjustment
    D : All of the mentioned
    Q.no 8. When the metal is removed by erosion caused by rapidly recurring spark
    discharges between the tool and work, the process is known as
    A : Electrochemical machining
    B : Electro-discharge machining
    C : Ultrasonic machining
    D : None of these
    Q.no 9. A grinding ratio of 200 implies that the
    A : Grinding wheel wears 200 times the
    volume of the material removed
    B : grinding wheel wears 0.005 times
    the volume of the material removed
    C : aspect ratio of abrasive
    particles used in the
    grinding wheel is 200
    D : ratio of volume
    of abrasive particle
    to that of grinding
    wheel is 200
    Q.no 10. In oblique cutting of metals, the cutting edge of the tools is.
    A : Perpendicular to the workpiece
    B : Perpendicular to the direction of
    tool travel
    C : Parallel to the direction of
    tool travel
    D : Inclined at an angle less
    than 90 to the direction of tool travel
    Q.no 11. In Abrasive jet machining, work piece material of removed by which of
    the following means?
    A : Vaporization
    B : Electro plating
    C : Mechanical abrasion
    D : Corrosion
    Q.no 12. Lapping is an operation of_________
    A : Making a cone-shaped enlargement
    of the end of a hole
    B : Smoothing and squaring the
    surface around a hole
    C : Sizing and finishing a
    small diameter hole
    D : Producing a hole by
    removing metal along
    the circumference of
    a hollow cutting tool
    Q.no 13. Removing dull grains in order to make grinding wheel sharp is known as
    A : Loading
    B : Glazing
    C : Dressing
    D : Trueing
    Q.no 14. A grinding wheel is said to be of if it holds the abrasive grains
    more securely
    A : Soft grade
    B : Medium grade
    C : Hard grade
    D : very soft grade
    Q.no 15. In _
    operation, the chip thickness is minimum at the beginning of
    the
    A : conventional milling
    B : climb milling
    C : face milling
    D : end milling
    Q.no 16. Use of tail stock in cylindrical grinding machine is
    A : To drive the work piece
    B : To give feed to the wheel head
    C : To provide Speed to
    grinding wheel
    D : To support the
    other end of the
    work piece
    Q.no 17. A dynamo-meter is a device used for the measurement of
    A : Chip thickness ratio
    B : Forces during metal cutting
    C : Wear of the cutting tool
    D : Deflection of the cutting tool
    Q.no 18. Steady rest is
    A : An additional support provided for long jobs
    B : Used while turning unsymmetrical
    objects
    C : Used during Plain cutting only
    D : Used when a lathe is
    subject to vibrations
    Q.no 19. Which of the following come under the main components of ECM?
    A : Feed control system
    B : Work piece holding devices
    C : Electrolyte supply system
    D : All of the mentioned
    Q.no 20. The operation of making a cone-shaped enlargement of the end of a hole
    is known as
    A : counter-sinking
    B : Counter-boring
    C : Treppaning
    D : Spot facing
    Q.no 21. Feed control system is responsible for which action in ECM?
    A : Giving feed to tool
    B : Electrolyte supply
    C : Power supply
    D : None of the mentioned
    Q.no 22. Which of the following process have the lowest metal removal rate?
    A : Drilling
    B : Milling
    C : Reaming
    D : Honning
    Q.no 23. In which process the material is removed due to the action of abrasive
    grains?
    A : Electron Beam Machining (EBM)
    B : Ultrasonic Machining (USM)
    C : Laser Beam Machining (LBM)
    D : Electrical Discharge Machining (EDM)
    Q.no 24. The main purpose of a boring operation, as compared to drilling, is to
    A : Drill a hole
    B : Finish the drilled hole
    C : Correct the hole
    D : Enlarge the existing hole
    Q.no 25. Which of the following symbol’s range of alphabet represent soft grain in
    grinding wheel?
    A : A – H
    B : I – P
    C : Q – T
    D : T – Z
    Q.no 26. In Electro discharge machining, materials with low melting point have
    which type of material removal rate?
    A : Very low
    B : Low
    C : Medium
    D : High
    Q.no 27. The usual value of the point angle of a drill is
    A : 70°
    B : 100°
    C : 118°
    D : 130°
    Q.no 28. If a cutting tool is designed as 8°-14°-6°-8°-8°-19°-1mm what is the side
    Rake angle of the tool
    A : 14°
    B : 19°
    C : 6°
    D : 8°
    Q.no 29. The hardness of a grinding wheel is determined by the
    A : Hardness of abrasive grains
    B : Ability of the bond to retain abrasives
    C : Hardness of the bond
    D : Ability of the grinding wheel to penetrate the work piece
    Q.no 30. In centerless grinders, the regulating wheel is inclined at
    A : 0° to 8°
    B : 9° to 15°
    C : 16° to 20°
    D : 21° to 25°
    Q.no 31. In an orthogonal cutting the depth of cut is halved and the feed is double.
    If the chip thickness ratio is unaffected with the changed cutting conditions the
    actual chip thickness will be
    A : Doubled
    B : Halved
    C : Quadrupled
    D : unchanged
    Q.no 32. The swing diameter over the bed is………the height of the center
    measured from the bed of the lathe
    A : Equal to
    B : Twice
    C : Thrice
    D : One -half
    Q.no 33. Which of the following specified grinding wheel will have Aluminum
    oxide abrasive?
    A : Z 46 K 5 B 17
    B : C 600 K 5 B 17
    C : C 8 K 5 B 17
    D : A 80 K 5 B 17
    Q.no 34. Which of the following is not a media of energy transfer on which the
    advanced machining processes are classified?
    A : Reactive atmosphere
    B : Electrons
    C : Electrolyte
    D : Chemical ablation
    Q.no 35. Which of the following specified grinding wheel will have Silicon carbide
    abrasive?
    A : Z 46 K 5 B 17
    B : C 600 K 5 B 17
    C : A 8 K 5 B 17
    D : A 80 K 5 B 17
    Q.no 36. Grinding wheel is specified as “A 46 K 5 B 17”. Grain size of a wheel will be
    A : Coarse
    B : Medium
    C : Fine
    D : Very Fine
    Q.no 37. What is the value of abrasive grain flow rate in Abrasive jet machining?
    A : 0.1 – 2 g/min
    B : 3 – 20 g/min
    C : 30 – 56 g/min
    D : 68 – 85 g/min
    Q.no 38. Which one of the following is a hybrid non-conventional machinig
    process
    A : ECM
    B : EDM
    C : AWJM
    D : LBM
    Q.no 39. Which one of the following is not a hybrid non-conventional machinig
    process
    A : ECDM
    B : AWJM
    C : Ultrasonic assisted EDM
    D : EBM
    Q.no 40. Which one of the following process is worked on principle of Mechanical
    errosion
    A : AJM
    B : EDM
    C : ECM
    D : PAM
    Q.no 41. At high cutting speed, high temperature at tool-chip interface is caused
    by
  69. Heat generation rate increases with an increase in cutting speed
  70. Friction coefficient (μ) decreases with an increase in cutting speed
  71. The time required to transfer the heat decreases with an increase in cutting
    speed
  72. Localization of heat takes place with an increase in cutting speed
    A : 1,3 &4
    B : 1,2,3 &4
    C : 1,2,& 3
    D : 2,3 &4
    Q.no 42. It is desired to perform the operations like drilling, reaming, counterboring etc. on a work piece. Which of the following machine will be used?
    A : Sensitive drilling machine
    B : Radial drilling machine
    C : Gang drilling machine
    D : Multiple spindle drilling
    machine
    Q.no 43. The tail stock set over required to turn a taper on the entire length of a
    workpiece having diameters D and d is
    A : D-d / (2L)
    B : D-d /(L)
    C : D-d /(2)
    D : D-d
    Q.no 44. If n=number of divisions required, then find the number of holes to be
    moved in direct indexing
    A : 12/n
    B : 24/n
    C : 40/n
    D : 120/n
    Q.no 45. In machining operation, Uncut chip thickness t0= 0.8 mm and Chip
    thickness tc=1.2 mm. The correct option for the chip thickness ratio (r) is
    A : 0.4
    B : 0.66
    C : 0.84
    D : 1.5
    Q.no 46. What is the general life of Tungsten carbide material nozzle in AJM?
    A : 1 – 8 hrs
    B : 2 – 5 hrs
    C : 10 – 15 hrs
    D : 25 – 40 hrs
    Q.no 47. Frequency of tool’s oscillation in USM ranges between?
    A : 5-10 kHz
    B : 10-15 kHz
    C : 18-20 kHz
    D : 25-50 kHz
    Q.no 48. Amplitude of oscillation of tool in USM ranges between?
    A : 0.1-10 μm
    B : 10-40 μm
    C : 50-100 μm
    D : 100-1000 μm
    Q.no 49. Which one of the following process is worked on principle of electrolysis
    using eletrolyte
    A : EDM
    B : USM
    C : AJM
    D : ECM
    Q.no 50. In Abrasive jet machining, what may be the size of the abrasive grains
    used?
    A : 10 – 40 μm
    B : 50 – 100 μm
    C : 100 – 150 μm
    D : 200 – 300 μm
    Q.no 51. Time required for one complete cut on the piece of work 350 mm long
    and 50 mm in diameter. the cutting speed is 35 m/min and feed is 0.5 mm/rev.
    A : 2.1 Min
    B : 3.1 Min
    C : 3.5 Min
    D : 3.6 Min
    Q.no 52. In an orthogonal cutting if the feed is 1.25 mm/rev, the chip thickness
    after cutting is 2 mm, then the chip thickness ratio and shear angle (for rake
    angle 10 Degrees) respectively are
    A : 0.525, 36.62 Degrees
    B : 0.625, 34.62 Degrees
    C : 0.425, 36.42 Degrees
    D : 0.325, 34.62 Degrees
    Q.no 53. A shaft 1200 mm long has a taper of 1:100 for a length of 600 mm. The
    maximum diameter of the shaft to be 80 mm. Determine the minimum diameter
    of staft and amount of setover
    A : 78 mm & 22 mm
    B : 60 mm & 20 mm
    C : 65 mm & 15 mm
    D : 68 mm & 12 mm
    Q.no 54. Calculate the cutting speed of drilling operation when diameter of drill is
    10 mm and rotational speed of drill is 200 r.p.m.
    A : 6.283 m/min
    B : 3.142 m/min
    C : 8.362 m/min
    D : 10.216 m/min
    Q.no 55. In a drilling operation using a twist drill, the lip angle is 120 degree
    (standard), the spindle speed is 300 rpm, the feed is 0.2 mm/rev and the drill
    diameter is 10 mm,calculate machining time to drill a hole of 30 mm long ?
    A : 0.88 min
    B : 0.54 min
    C : 1.2 min
    D : 3 min
    Q.no 56. In the Taylor’s tool life equation, VT^n = C, the value of n=0.5. The tool life
    has a life of 180 minutes at a cutting speed of 18 m/min. If the tool life is reduced
    to 45 minutes, then the cutting speed will be
    A : 9 m/min
    B : 18 m/min
    C : 36 m/min
    D : 72 m/min
    Q.no 57. In Face Milling,What is the feed per tooth when the main axis spindle
    speed is 500 rpm, number of insert is 10, and table feed is 500mm/min
    A : 0.1 mm/tooth
    B : 0.7 mm/tooth
    C : 1 mm/tooth
    D : 7 mm/tooth
    Q.no 58. A tapered pin is to be prepared on a lathe machine. If the larger diameter
    is 90 mm, smaller diameter is 80 mm, length of the pin is 100 mm, Find the angle
    of taper at which the compound rest to be swivelled around
    A : 3 Degrees and 51 Minutes
    B : 2 Degrees and 15 Minutes
    C : 4 Degrees and 51 Minutes
    D : 2 Degrees and 51 Minutes
    Q.no 59. A mild steel material is being turn for 50 mm length with a feed rate of
    0.15 mm/rev and spindle speed of 1400 rpm. The time required to cut the material
    in miniutes is
    A : 0.13
    B : 0.23
    C : 0.33
    D : 0.43
    Q.no 60. The time required for machining a workpiece 50 mm dianeter 350 mm
    length, turn all over in four passes. The approach length is 12 mm, Overtravel
    10mm, the feed = 0.5 mm/rev, and cutting speed is 35m/min.
    A : 13.016 min
    B : 10.016 min
    C : 11.016 min
    D : 12.016 min
    Q.no 1. In a milling operation, two side milling cutters are mounted with a desired
    distance between them so that both sides of a workpiece can be milled
    simultaneously. This set up is called
    A : Gang milling
    B : Straddle milling
    C : Face milling
    D : Side milling
    Q.no 2. The angle between the face and flank of the single point cutting tool is
    known as
    A : Rake angle
    B : Clearance angle
    C : Lip angle
    D : Point angle
    Q.no 3. In centreless grinding, workpiece centre will be
    A : Above the line joining the two
    wheel centres
    B : Below the line joining the two
    wheel centres
    C : On the line joining the two
    wheel centres
    D : At the intersection of the
    line joining the wheel
    centres with the workpiece
    Q.no 4. Which of the following range of numbers represents dense structure of
    abrasives?
    A : 0-7
    B : 8-10
    C : 10-12
    D : 12-16
    Q.no 5. Twist drills are made of
    A : High speed steel
    B : Mild Steel
    C : Stainless steel
    D : High Carbon Steel
    Q.no 6. Which of the following material/s cannot be used for making of nozzle in
    Abrasive jet machining?
    A : Tungsten Carbide
    B : Steel alloy
    C : Sapphire
    D : Synthetic sapphire
    Q.no 7. Of the following properties of nozzle, which of them does not influence the
    MRR in AJM?
    A : Size
    B : Material
    C : Outside temperature
    D : Distance from work piece
    Q.no 8. How is material removed in Electro discharge machining?
    A : Melt and evaporate
    B : Corrode and break
    C : Mechanical erosion takes place
    D : None of the mentioned
    Q.no 9. A coarse grained grinding wheel is used to grind
    A : Soft and Hard materials
    B : Soft and ductile materials
    C : Hard Material
    D : Tough Material
    Q.no 10. Which of the following process has highest rate of metal removal
    A : Electric Discharge Machining (EDM)
    B : Electro-Chemical Machining (ECM)
    C : Ultrasonic Machining (USM)
    D : Laser Beam Machining (LBM)
    Q.no 11. Grinding wheel Tool signature consists of _ elements
    A : 4
    B : 5
    C : 6
    D : 7
    Q.no 12. The operation of producing grooves around the periphery of a cylindrical
    or conical workpiece is called
    A : profile milling
    B : Gang milling
    C : Saw milling
    D : Helical milling
    Q.no 13. If l=length of travel of the drill in mm, n=rpm of the drill, s= feed per
    revolution of the drill in mm. Then machining time can be given as__

    A : (ln)/s B : (ls)/n
    C : l/(n*s)
    D : (1+n)/s
    Q.no 14. As the abrasive flow rate increases, what happens to the volumetric
    removal rate in AJM?
    A : Increases
    B : Decreases
    C : Increase and then decrease
    D : Decrease and then increase
    Q.no 15. Discontinuous chips are formed during machine of
    A : Brittle metals
    B : Ductile metals
    C : Soft metals
    D : Tough metals
    Q.no 16. Cast iron during machining produces
    A : Continuous chips
    B : Dis-Continuous chips
    C : Continuous chips with
    built-up-edge
    D : None of these
    Q.no 17. In Abrasive jet machining, work piece material of removed by which of
    the following means?
    A : Vaporization
    B : Electro plating
    C : Mechanical abrasion
    D : Corrosion
    Q.no 18. Use of tail stock in cylindrical grinding machine is
    A : To drive the work piece
    B : To give feed to the wheel head
    C : To provide Speed to
    grinding wheel
    D : To support the
    other end of the
    work piece
    Q.no 19. Which of the following processes is generally applied for dentistry work
    like to drill fine holes of particular shape in teeth?
    A : Electrical Discharge Machining (EDM)
    B : Electron Beam Machining (EBM)
    C : Laser Beam Machining (LBM)
    D : Ultrasonic Machining (USM)
    Q.no 20. Carbide tipped tools usually have
    A : Negative rake angle
    B : Positive rake angle
    C : Any rake angle
    D : No rake angle
    Q.no 21. Tool life in turning will decrease by maximum extent if we double the….
    A : Depth of cut
    B : Feed
    C : Cutting Velocity
    D : Tool rake angle
    Q.no 22. If a cutting tool is designed as 8°-14°-6°-8°-8°-19°-1mm what is the side
    Rake angle of the tool
    A : 14°
    B : 19°
    C : 6°
    D : 8°
    Q.no 23. In centerless grinders, the regulating wheel is inclined at
    A : 0° to 8°
    B : 9° to 15°
    C : 16° to 20°
    D : 21° to 25°
    Q.no 24. The operation of making a cone-shaped enlargement of the end of a hole
    is known as
    A : counter-sinking
    B : Counter-boring
    C : Treppaning
    D : Spot facing
    Q.no 25. Shear angle varies with
    A : Cutting speed
    B : Feed
    C : Depth of cut
    D : Work piece materials and
    tool geometry
    Q.no 26. In which process the material is removed due to the action of abrasive
    grains?
    A : Electron Beam Machining (EBM)
    B : Ultrasonic Machining (USM)
    C : Laser Beam Machining (LBM)
    D : Electrical Discharge Machining (EDM)
    Q.no 27. A grinding ratio of 200 implies that the
    A : Grinding wheel wears 200 times the
    volume of the material removed
    B : grinding wheel wears 0.005 times
    the volume of the material removed
    C : aspect ratio of abrasive
    particles used in the
    grinding wheel is 200
    D : ratio of volume
    of abrasive particle
    to that of grinding
    wheel is 200
    Q.no 28. Which of the following symbol’s range of alphabet represent soft grain in
    grinding wheel?
    A : A – H
    B : I – P
    C : Q – T
    D : T – Z
    Q.no 29. Burnishing is a process of
    A : Cold working
    B : Hot working
    C : Press working
    D : Metal Cutting
    Q.no 30. Which of the following is a not a surface finishing process?
    A : Honing
    B : Buffing
    C : Lapping
    D : Turning
    Q.no 31. The swing diameter over the bed is………the height of the center
    measured from the bed of the lathe
    A : Equal to
    B : Twice
    C : Thrice
    D : One -half
    Q.no 32. Which of the following specified grinding wheel will have Aluminum
    oxide abrasive?
    A : Z 46 K 5 B 17
    B : C 600 K 5 B 17
    C : C 8 K 5 B 17
    D : A 80 K 5 B 17
    Q.no 33. What is the value of abrasive grain flow rate in Abrasive jet machining?
    A : 0.1 – 2 g/min
    B : 3 – 20 g/min
    C : 30 – 56 g/min
    D : 68 – 85 g/min
    Q.no 34. Which one of the following process is worked on principle of Mechanical
    errosion
    A : AJM
    B : EDM
    C : ECM
    D : PAM
    Q.no 35. Find the angle at which the compound rest should be set up to turn taper
    on the workpiece having a length of 20mm, larger diameter 45mm and the
    smaller diameter 30mm.
    A : 2 Degree 9 Minutes
    B : 3 Degree 9 Minutes
    C : 4 Degree 9 Minutes
    D : 5 Degree 9 Minutes
    Q.no 36. Grinding wheel is specified as “A 46 K 5 B 17”. Grain size of a wheel will be
    A : Coarse
    B : Medium
    C : Fine
    D : Very Fine
    Q.no 37. In AJM, surface roughness value will vary between which values?
    A : 0.01 – 0.10 μm
    B : 0.15 – 1.5 μm
    C : 2.0 – 5.0 μm
    D : 7.0 – 10.0 μm
    Q.no 38. Which one of the following is not a hybrid non-conventional machinig
    process
    A : ECDM
    B : AWJM
    C : Ultrasonic assisted EDM
    D : EBM
    Q.no 39. In an orthogonal cutting the depth of cut is halved and the feed is double.
    If the chip thickness ratio is unaffected with the changed cutting conditions the
    actual chip thickness will be
    A : Doubled
    B : Halved
    C : Quadrupled
    D : unchanged
    Q.no 40. Which one of the following is a hybrid non-conventional machinig
    process
    A : ECM
    B : EDM
    C : AWJM
    D : LBM
    Q.no 41. Which of the following specified grinding wheel will have Silicon carbide
    abrasive?
    A : Z 46 K 5 B 17
    B : C 600 K 5 B 17
    C : A 8 K 5 B 17
    D : A 80 K 5 B 17
    Q.no 42. Which of the following is not a media of energy transfer on which the
    advanced machining processes are classified?
    A : Reactive atmosphere
    B : Electrons
    C : Electrolyte
    D : Chemical ablation
    Q.no 43. The useful life of a HSS tool machining mild steel at18 m/min is 3 hr.
    Calculate the tool life when the tool operate at 24 m/min.
    A : 12 min
    B : 18 min
    C : 20 min
    D : 24 min
    Q.no 44. In Abrasive jet machining, what may be the size of the abrasive grains
    used?
    A : 10 – 40 μm
    B : 50 – 100 μm
    C : 100 – 150 μm
    D : 200 – 300 μm
    Q.no 45. At high cutting speed, high temperature at tool-chip interface is caused
    by
  73. Heat generation rate increases with an increase in cutting speed
  74. Friction coefficient (μ) decreases with an increase in cutting speed
  75. The time required to transfer the heat decreases with an increase in cutting
    speed
  76. Localization of heat takes place with an increase in cutting speed
    A : 1,3 &4
    B : 1,2,3 &4
    C : 1,2,& 3
    D : 2,3 &4
    Q.no 46. What is the general life of Tungsten carbide material nozzle in AJM?
    A : 1 – 8 hrs
    B : 2 – 5 hrs
    C : 10 – 15 hrs
    D : 25 – 40 hrs
    Q.no 47. Which one of the following process is worked on principle of electrolysis
    using eletrolyte
    A : EDM
    B : USM
    C : AJM
    D : ECM
    Q.no 48. In machining operation, Uncut chip thickness t0= 0.8 mm and Chip
    thickness tc=1.2 mm. The correct option for the chip thickness ratio (r) is
    A : 0.4
    B : 0.66
    C : 0.84
    D : 1.5
    Q.no 49. If n=number of divisions required, then find the number of holes to be
    moved in direct indexing
    A : 12/n
    B : 24/n
    C : 40/n
    D : 120/n
    Q.no 50. Frequency of tool’s oscillation in USM ranges between?
    A : 5-10 kHz
    B : 10-15 kHz
    C : 18-20 kHz
    D : 25-50 kHz
    Q.no 51. In an orthogonal cutting if the feed is 1.25 mm/rev, the chip thickness
    after cutting is 2 mm, then the chip thickness ratio and shear angle (for rake
    angle 10 Degrees) respectively are
    A : 0.525, 36.62 Degrees
    B : 0.625, 34.62 Degrees
    C : 0.425, 36.42 Degrees
    D : 0.325, 34.62 Degrees
    Q.no 52. Time required for one complete cut on the piece of work 350 mm long
    and 50 mm in diameter. the cutting speed is 35 m/min and feed is 0.5 mm/rev.
    A : 2.1 Min
    B : 3.1 Min
    C : 3.5 Min
    D : 3.6 Min
    Q.no 53. In face milling,What is the cutting speed when main axis spindle speed is
    350 rpm and the cutter diameter is 125 mm ?
    A : 137.4 m/min
    B : 142 m/min
    C : 150.2 m/min
    D : 130 m/min
    Q.no 54. In orthogonal turning of MS bar of 65 mm diameter machined on a lathe
    with a feed of 0.8 mm was used. A continuous chip of 1.4 mm thickness was
    removed at a rotational speed of 85 rpm. The Chip thickness ratio, Chip reduction
    ratio and Total length of the Chip in One Minute respectively is
    A : 0.5714, 1.75, 9918 mm
    B : 1.75, 0.5714, 9915 mm
    C : 1.75, 9999 mm, 05714,
    D : 57.14, 1.75, 9999 mm
    Q.no 55. In orthogonal cutting feed is 0.2 mm/rev, Chip thickness is 0.3 mm, Rake
    angle is 15 degrees. Then the shear plane angle in degrees is
    A : 27.9
    B : 17.9
    C : 37.9
    D : 47.9
    Q.no 56. Using the Taylor equation VT^n=c, calculate the percentage increase in
    tool life when the cutting speed is reduced is reduced by 50% (n=0.5 and c=400)
    A : 300%
    B : 400%
    C : 100%
    D : 200%
    Q.no 57. The time required for machining a workpiece 50 mm dianeter 350 mm
    length, turn all over in four passes. The approach length is 12 mm, Overtravel
    10mm, the feed = 0.5 mm/rev, and cutting speed is 35m/min.
    A : 13.016 min
    B : 10.016 min
    C : 11.016 min
    D : 12.016 min
    Q.no 58. In a drilling operation using a twist drill, the lip angle is 120 degree
    (standard), the spindle speed is 300 rpm, the feed is 0.2 mm/rev and the drill
    diameter is 10 mm,calculate machining time to drill a hole of 30 mm long ?
    A : 0.88 min
    B : 0.54 min
    C : 1.2 min
    D : 3 min
    Q.no 59. Calculate the cutting speed of drilling operation when diameter of drill is
    10 mm and rotational speed of drill is 200 r.p.m.
    A : 6.283 m/min
    B : 3.142 m/min
    C : 8.362 m/min
    D : 10.216 m/min
    Q.no 60. A shaft 1200 mm long has a taper of 1:100 for a length of 600 mm. The
    maximum diameter of the shaft to be 80 mm. Determine the minimum diameter
    of staft and amount of setover
    A : 78 mm & 22 mm
    B : 60 mm & 20 mm
    C : 65 mm & 15 mm
    D : 68 mm & 12 mm
    Q.no 1. Which type of adjustment required for gap voltages in ECM?
    A : Continuous adjustment
    B : Discontinuous adjustment
    C : Periodic adjustment
    D : All of the mentioned
    Q.no 2. When the metal is removed by erosion caused by rapidly recurring spark
    discharges between the tool and work, the process is known as
    A : Electrochemical machining
    B : Electro-discharge machining
    C : Ultrasonic machining
    D : None of these
    Q.no 3. The hardness of a grinding wheel is determined by the
    A : Hardness of abrasive grains
    B : Ability of the bond to retain abrasives
    C : Hardness of the bond
    D : Ability of the grinding wheel to penetrate the work piece
    Q.no 4. Which of the following process have the lowest metal removal rate?
    A : Drilling
    B : Milling
    C : Reaming
    D : Honning
    Q.no 5. Removing dull grains in order to make grinding wheel sharp is known as
    A : Loading
    B : Glazing
    C : Dressing
    D : Trueing
    Q.no 6. How is material removed in Electro discharge machining?
    A : Melt and evaporate
    B : Corrode and break
    C : Mechanical erosion takes place
    D : None of the mentioned
    Q.no 7. In Electro discharge machining, materials with low melting point have
    which type of material removal rate?
    A : Very low
    B : Low
    C : Medium
    D : High
    Q.no 8. The tool life is said to be over if
    A : Poor surface finish is obtained
    B : There is sudden increase in cutting
    forces and power consumption
    C : Overheating and fuming due to
    heat of friction starts
    D : All of the above
    Q.no 9. In _ operation, the chip thickness is minimum at the beginning of
    the
    A : conventional milling
    B : climb milling
    C : face milling
    D : end milling
    Q.no 10. In centreless grinding, workpiece centre will be
    A : Above the line joining the two
    wheel centres
    B : Below the line joining the two
    wheel centres
    C : On the line joining the two
    wheel centres
    D : At the intersection of the
    line joining the wheel
    centres with the workpiece
    Q.no 11. Feed control system is responsible for which action in ECM?
    A : Giving feed to tool
    B : Electrolyte supply
    C : Power supply
    D : None of the mentioned
    Q.no 12. In a milling operation, two side milling cutters are mounted with a
    desired distance between them so that both sides of a workpiece can be milled
    simultaneously. This set up is called
    A : Gang milling
    B : Straddle milling
    C : Face milling
    D : Side milling
    Q.no 13. A half nut is
    A : Damaged nut
    B : Nut manufactured in parts
    C : Nut with half the standard pitch
    D : Mechanism that locks the
    lathe carriage to the load
    screw for thread cutting
    Q.no 14. In oblique cutting of metals, the cutting edge of the tools is.
    A : Perpendicular to the workpiece
    B : Perpendicular to the direction of
    tool travel
    C : Parallel to the direction of
    tool travel
    D : Inclined at an angle less
    than 90 to the direction of tool travel
    Q.no 15. The main purpose of a boring operation, as compared to drilling, is to
    A : Drill a hole
    B : Finish the drilled hole
    C : Correct the hole
    D : Enlarge the existing hole
    Q.no 16. Which of the following come under the main components of ECM?
    A : Feed control system
    B : Work piece holding devices
    C : Electrolyte supply system
    D : All of the mentioned
    Q.no 17. For which of the following operations, broaching can be used?
    A : Threading
    B : Grinding
    C : Spline cutting
    D : Increasing the size of the
    existing hole for a certain
    length
    Q.no 18. The angle between the face and flank of the single point cutting tool is
    known as
    A : Rake angle
    B : Clearance angle
    C : Lip angle
    D : Point angle
    Q.no 19. A dynamo-meter is a device used for the measurement of
    A : Chip thickness ratio
    B : Forces during metal cutting
    C : Wear of the cutting tool
    D : Deflection of the cutting tool
    Q.no 20. The usual value of the point angle of a drill is
    A : 70°
    B : 100°
    C : 118°
    D : 130°
    Q.no 21. Which of the following material/s cannot be used for making of nozzle in
    Abrasive jet machining?
    A : Tungsten Carbide
    B : Steel alloy
    C : Sapphire
    D : Synthetic sapphire
    Q.no 22. Of the following properties of nozzle, which of them does not influence
    the MRR in AJM?
    A : Size
    B : Material
    C : Outside temperature
    D : Distance from work piece
    Q.no 23. Twist drills are made of
    A : High speed steel
    B : Mild Steel
    C : Stainless steel
    D : High Carbon Steel
    Q.no 24. Which of the following range of numbers represents dense structure of
    abrasives?
    A : 0-7
    B : 8-10
    C : 10-12
    D : 12-16
    Q.no 25. A grinding wheel is said to be of
    if it holds the abrasive grains
    more securely
    A : Soft grade
    B : Medium grade
    C : Hard grade
    D : very soft grade
    Q.no 26. Lapping is an operation of_________
    A : Making a cone-shaped enlargement
    of the end of a hole
    B : Smoothing and squaring the
    surface around a hole
    C : Sizing and finishing a
    small diameter hole
    D : Producing a hole by
    removing metal along
    the circumference of
    a hollow cutting tool
    Q.no 27. Which of the following method is not used for holding tool in drilling
    machine?
    A : by a sleeve
    B : by four jaw chucks
    C : by a socket
    D : By tool holder
    Q.no 28. Steady rest is
    A : An additional support provided for long jobs
    B : Used while turning unsymmetrical
    objects
    C : Used during Plain cutting only
    D : Used when a lathe is
    subject to vibrations
    Q.no 29. In which process the material is removed due to the action of abrasive
    grains?
    A : Electron Beam Machining (EBM)
    B : Ultrasonic Machining (USM)
    C : Laser Beam Machining (LBM)
    D : Electrical Discharge Machining (EDM)
    Q.no 30. Use of tail stock in cylindrical grinding machine is
    A : To drive the work piece
    B : To give feed to the wheel head
    C : To provide Speed to
    grinding wheel
    D : To support the
    other end of the
    work piece
    Q.no 31. Grinding wheel is specified as “A 46 K 5 B 17”. Grain size of a wheel will be
    A : Coarse
    B : Medium
    C : Fine
    D : Very Fine
    Q.no 32. Amplitude of oscillation of tool in USM ranges between?
    A : 0.1-10 μm
    B : 10-40 μm
    C : 50-100 μm
    D : 100-1000 μm
    Q.no 33. The swing diameter over the bed is………the height of the center
    measured from the bed of the lathe
    A : Equal to
    B : Twice
    C : Thrice
    D : One -half
    Q.no 34. What is the value of abrasive grain flow rate in Abrasive jet machining?
    A : 0.1 – 2 g/min
    B : 3 – 20 g/min
    C : 30 – 56 g/min
    D : 68 – 85 g/min
    Q.no 35. In AJM, surface roughness value will vary between which values?
    A : 0.01 – 0.10 μm
    B : 0.15 – 1.5 μm
    C : 2.0 – 5.0 μm
    D : 7.0 – 10.0 μm
    Q.no 36. Which one of the following process is worked on principle of Mechanical
    errosion
    A : AJM
    B : EDM
    C : ECM
    D : PAM
    Q.no 37. Which one of the following is not a hybrid non-conventional machinig
    process
    A : ECDM
    B : AWJM
    C : Ultrasonic assisted EDM
    D : EBM
    Q.no 38. The tail stock set over required to turn a taper on the entire length of a
    workpiece having diameters D and d is
    A : D-d / (2L)
    B : D-d /(L)
    C : D-d /(2)
    D : D-d
    Q.no 39. In an orthogonal cutting the depth of cut is halved and the feed is double.
    If the chip thickness ratio is unaffected with the changed cutting conditions the
    actual chip thickness will be
    A : Doubled
    B : Halved
    C : Quadrupled
    D : unchanged
    Q.no 40. Which of the following specified grinding wheel will have Aluminum
    oxide abrasive?
    A : Z 46 K 5 B 17
    B : C 600 K 5 B 17
    C : C 8 K 5 B 17
    D : A 80 K 5 B 17
    Q.no 41. It is desired to perform the operations like drilling, reaming, counterboring etc. on a work piece. Which of the following machine will be used?
    A : Sensitive drilling machine
    B : Radial drilling machine
    C : Gang drilling machine
    D : Multiple spindle drilling
    machine
    Q.no 42. Which one of the following is a hybrid non-conventional machinig
    process
    A : ECM
    B : EDM
    C : AWJM
    D : LBM
    Q.no 43. Find the angle at which the compound rest should be set up to turn taper
    on the workpiece having a length of 20mm, larger diameter 45mm and the
    smaller diameter 30mm.
    A : 2 Degree 9 Minutes
    B : 3 Degree 9 Minutes
    C : 4 Degree 9 Minutes
    D : 5 Degree 9 Minutes
    Q.no 44. If n=number of divisions required, then find the number of holes to be
    moved in direct indexing
    A : 12/n
    B : 24/n
    C : 40/n
    D : 120/n
    Q.no 45. Which one of the following process is worked on principle of electrolysis
    using eletrolyte
    A : EDM
    B : USM
    C : AJM
    D : ECM
    Q.no 46. Frequency of tool’s oscillation in USM ranges between?
    A : 5-10 kHz
    B : 10-15 kHz
    C : 18-20 kHz
    D : 25-50 kHz
    Q.no 47. In Abrasive jet machining, what may be the size of the abrasive grains
    used?
    A : 10 – 40 μm
    B : 50 – 100 μm
    C : 100 – 150 μm
    D : 200 – 300 μm
    Q.no 48. What is the general life of Tungsten carbide material nozzle in AJM?
    A : 1 – 8 hrs
    B : 2 – 5 hrs
    C : 10 – 15 hrs
    D : 25 – 40 hrs
    Q.no 49. At high cutting speed, high temperature at tool-chip interface is caused
    by
  77. Heat generation rate increases with an increase in cutting speed
  78. Friction coefficient (μ) decreases with an increase in cutting speed
  79. The time required to transfer the heat decreases with an increase in cutting
    speed
  80. Localization of heat takes place with an increase in cutting speed
    A : 1,3 &4
    B : 1,2,3 &4
    C : 1,2,& 3
    D : 2,3 &4
    Q.no 50. Which of the following is not a media of energy transfer on which the
    advanced machining processes are classified?
    A : Reactive atmosphere
    B : Electrons
    C : Electrolyte
    D : Chemical ablation
    Q.no 51. A mild steel material is being turn for 50 mm length with a feed rate of
    0.15 mm/rev and spindle speed of 1400 rpm. The time required to cut the material
    in miniutes is
    A : 0.13
    B : 0.23
    C : 0.33
    D : 0.43
    Q.no 52. In the Taylor’s tool life equation, VT^n = C, the value of n=0.5. The tool life
    has a life of 180 minutes at a cutting speed of 18 m/min. If the tool life is reduced
    to 45 minutes, then the cutting speed will be
    A : 9 m/min
    B : 18 m/min
    C : 36 m/min
    D : 72 m/min
    Q.no 53. A tapered pin is to be prepared on a lathe machine. If the larger diameter
    is 90 mm, smaller diameter is 80 mm, length of the pin is 100 mm, Find the angle
    of taper at which the compound rest to be swivelled around
    A : 3 Degrees and 51 Minutes
    B : 2 Degrees and 15 Minutes
    C : 4 Degrees and 51 Minutes
    D : 2 Degrees and 51 Minutes
    Q.no 54. In an orthogonal cutting if the feed is 1.25 mm/rev, the chip thickness
    after cutting is 2 mm, then the chip thickness ratio and shear angle (for rake
    angle 10 Degrees) respectively are
    A : 0.525, 36.62 Degrees
    B : 0.625, 34.62 Degrees
    C : 0.425, 36.42 Degrees
    D : 0.325, 34.62 Degrees
    Q.no 55. In Face Milling,What is the feed per tooth when the main axis spindle
    speed is 500 rpm, number of insert is 10, and table feed is 500mm/min
    A : 0.1 mm/tooth
    B : 0.7 mm/tooth
    C : 1 mm/tooth
    D : 7 mm/tooth
    Q.no 56. A shaft 1200 mm long has a taper of 1:100 for a length of 600 mm. The
    maximum diameter of the shaft to be 80 mm. Determine the minimum diameter
    of staft and amount of setover
    A : 78 mm & 22 mm
    B : 60 mm & 20 mm
    C : 65 mm & 15 mm
    D : 68 mm & 12 mm
    Q.no 57. In a drilling operation using a twist drill, the lip angle is 120 degree
    (standard), the spindle speed is 300 rpm, the feed is 0.2 mm/rev and the drill
    diameter is 10 mm,calculate machining time to drill a hole of 30 mm long ?
    A : 0.88 min
    B : 0.54 min
    C : 1.2 min
    D : 3 min
    Q.no 58. Time required for one complete cut on the piece of work 350 mm long
    and 50 mm in diameter. the cutting speed is 35 m/min and feed is 0.5 mm/rev.
    A : 2.1 Min
    B : 3.1 Min
    C : 3.5 Min
    D : 3.6 Min
    Q.no 59. Calculate the cutting speed of drilling operation when diameter of drill is
    10 mm and rotational speed of drill is 200 r.p.m.
    A : 6.283 m/min
    B : 3.142 m/min
    C : 8.362 m/min
    D : 10.216 m/min
    Q.no 60. In orthogonal cutting feed is 0.2 mm/rev, Chip thickness is 0.3 mm, Rake
    angle is 15 degrees. Then the shear plane angle in degrees is
    A : 27.9
    B : 17.9
    C : 37.9
    D : 47.9
    Q.no 1. Tool life in turning will decrease by maximum extent if we double the….
    A : Depth of cut
    B : Feed
    C : Cutting Velocity
    D : Tool rake angle
    Q.no 2. In centerless grinders, the regulating wheel is inclined at
    A : 0° to 8°
    B : 9° to 15°
    C : 16° to 20°
    D : 21° to 25°
    Q.no 3. As the abrasive flow rate increases, what happens to the volumetric
    removal rate in AJM?
    A : Increases
    B : Decreases
    C : Increase and then decrease
    D : Decrease and then increase
    Q.no 4. Which of the following processes is generally applied for dentistry work
    like to drill fine holes of particular shape in teeth?
    A : Electrical Discharge Machining (EDM)
    B : Electron Beam Machining (EBM)
    C : Laser Beam Machining (LBM)
    D : Ultrasonic Machining (USM)
    Q.no 5. If a cutting tool is designed as 8°-14°-6°-8°-8°-19°-1mm what is the side Rake
    angle of the tool
    A : 14°
    B : 19°
    C : 6°
    D : 8°
    Q.no 6. Grinding wheel Tool signature consists of _ elements
    A : 4
    B : 5
    C : 6
    D : 7
    Q.no 7. Shear angle varies with
    A : Cutting speed
    B : Feed
    C : Depth of cut
    D : Work piece materials and
    tool geometry
    Q.no 8. In Abrasive jet machining, work piece material of removed by which of
    the following means?
    A : Vaporization
    B : Electro plating
    C : Mechanical abrasion
    D : Corrosion
    Q.no 9. Which of the following symbol’s range of alphabet represent soft grain in
    grinding wheel?
    A : A – H
    B : I – P
    C : Q – T
    D : T – Z
    Q.no 10. Burnishing is a process of
    A : Cold working
    B : Hot working
    C : Press working
    D : Metal Cutting
    Q.no 11. Which type of adjustment required for gap voltages in ECM?
    A : Continuous adjustment
    B : Discontinuous adjustment
    C : Periodic adjustment
    D : All of the mentioned
    Q.no 12. Which of the following is a not a surface finishing process?
    A : Honing
    B : Buffing
    C : Lapping
    D : Turning
    Q.no 13. Cast iron during machining produces
    A : Continuous chips
    B : Dis-Continuous chips
    C : Continuous chips with
    built-up-edge
    D : None of these
    Q.no 14. A grinding ratio of 200 implies that the
    A : Grinding wheel wears 200 times the
    volume of the material removed
    B : grinding wheel wears 0.005 times
    the volume of the material removed
    C : aspect ratio of abrasive
    particles used in the
    grinding wheel is 200
    D : ratio of volume
    of abrasive particle
    to that of grinding
    wheel is 200
    Q.no 15. If l=length of travel of the drill in mm, n=rpm of the drill, s= feed per
    revolution of the drill in mm. Then machining time can be given as__

    A : (ln)/s B : (ls)/n
    C : l/(n*s)
    D : (1+n)/s
    Q.no 16. A coarse grained grinding wheel is used to grind
    A : Soft and Hard materials
    B : Soft and ductile materials
    C : Hard Material
    D : Tough Material
    Q.no 17. The operation of making a cone-shaped enlargement of the end of a hole
    is known as
    A : counter-sinking
    B : Counter-boring
    C : Treppaning
    D : Spot facing
    Q.no 18. Carbide tipped tools usually have
    A : Negative rake angle
    B : Positive rake angle
    C : Any rake angle
    D : No rake angle
    Q.no 19. Which of the following process has highest rate of metal removal
    A : Electric Discharge Machining (EDM)
    B : Electro-Chemical Machining (ECM)
    C : Ultrasonic Machining (USM)
    D : Laser Beam Machining (LBM)
    Q.no 20. The operation of producing grooves around the periphery of a cylindrical
    or conical workpiece is called
    A : profile milling
    B : Gang milling
    C : Saw milling
    D : Helical milling
    Q.no 21. Discontinuous chips are formed during machine of
    A : Brittle metals
    B : Ductile metals
    C : Soft metals
    D : Tough metals
    Q.no 22. Removing dull grains in order to make grinding wheel sharp is known as
    A : Loading
    B : Glazing
    C : Dressing
    D : Trueing
    Q.no 23. How is material removed in Electro discharge machining?
    A : Melt and evaporate
    B : Corrode and break
    C : Mechanical erosion takes place
    D : None of the mentioned
    Q.no 24. In oblique cutting of metals, the cutting edge of the tools is.
    A : Perpendicular to the workpiece
    B : Perpendicular to the direction of
    tool travel
    C : Parallel to the direction of
    tool travel
    D : Inclined at an angle less
    than 90 to the direction of tool travel
    Q.no 25. In __ operation, the chip thickness is minimum at the beginning of
    the
    A : conventional milling
    B : climb milling
    C : face milling
    D : end milling
    Q.no 26. For which of the following operations, broaching can be used?
    A : Threading
    B : Grinding
    C : Spline cutting
    D : Increasing the size of the
    existing hole for a certain
    length
    Q.no 27. Twist drills are made of
    A : High speed steel
    B : Mild Steel
    C : Stainless steel
    D : High Carbon Steel
    Q.no 28. Feed control system is responsible for which action in ECM?
    A : Giving feed to tool
    B : Electrolyte supply
    C : Power supply
    D : None of the mentioned
    Q.no 29. In Electro discharge machining, materials with low melting point have
    which type of material removal rate?
    A : Very low
    B : Low
    C : Medium
    D : High
    Q.no 30. The tool life is said to be over if
    A : Poor surface finish is obtained
    B : There is sudden increase in cutting
    forces and power consumption
    C : Overheating and fuming due to
    heat of friction starts
    D : All of the above
    Q.no 31. In machining operation, Uncut chip thickness t0= 0.8 mm and Chip
    thickness tc=1.2 mm. The correct option for the chip thickness ratio (r) is
    A : 0.4
    B : 0.66
    C : 0.84
    D : 1.5
    Q.no 32. Amplitude of oscillation of tool in USM ranges between?
    A : 0.1-10 μm
    B : 10-40 μm
    C : 50-100 μm
    D : 100-1000 μm
    Q.no 33. In AJM, surface roughness value will vary between which values?
    A : 0.01 – 0.10 μm
    B : 0.15 – 1.5 μm
    C : 2.0 – 5.0 μm
    D : 7.0 – 10.0 μm
    Q.no 34. What is the value of abrasive grain flow rate in Abrasive jet machining?
    A : 0.1 – 2 g/min
    B : 3 – 20 g/min
    C : 30 – 56 g/min
    D : 68 – 85 g/min
    Q.no 35. Grinding wheel is specified as “A 46 K 5 B 17”. Grain size of a wheel will be
    A : Coarse
    B : Medium
    C : Fine
    D : Very Fine
    Q.no 36. Which one of the following is not a hybrid non-conventional machinig
    process
    A : ECDM
    B : AWJM
    C : Ultrasonic assisted EDM
    D : EBM
    Q.no 37. Which of the following specified grinding wheel will have Silicon carbide
    abrasive?
    A : Z 46 K 5 B 17
    B : C 600 K 5 B 17
    C : A 8 K 5 B 17
    D : A 80 K 5 B 17
    Q.no 38. Which one of the following process is worked on principle of Mechanical
    errosion
    A : AJM
    B : EDM
    C : ECM
    D : PAM
    Q.no 39. The swing diameter over the bed is………the height of the center
    measured from the bed of the lathe
    A : Equal to
    B : Twice
    C : Thrice
    D : One -half
    Q.no 40. The useful life of a HSS tool machining mild steel at18 m/min is 3 hr.
    Calculate the tool life when the tool operate at 24 m/min.
    A : 12 min
    B : 18 min
    C : 20 min
    D : 24 min
    Q.no 41. Which one of the following process is worked on principle of electrolysis
    using eletrolyte
    A : EDM
    B : USM
    C : AJM
    D : ECM
    Q.no 42. Frequency of tool’s oscillation in USM ranges between?
    A : 5-10 kHz
    B : 10-15 kHz
    C : 18-20 kHz
    D : 25-50 kHz
    Q.no 43. Which of the following is not a media of energy transfer on which the
    advanced machining processes are classified?
    A : Reactive atmosphere
    B : Electrons
    C : Electrolyte
    D : Chemical ablation
    Q.no 44. In Abrasive jet machining, what may be the size of the abrasive grains
    used?
    A : 10 – 40 μm
    B : 50 – 100 μm
    C : 100 – 150 μm
    D : 200 – 300 μm
    Q.no 45. In an orthogonal cutting the depth of cut is halved and the feed is double.
    If the chip thickness ratio is unaffected with the changed cutting conditions the
    actual chip thickness will be
    A : Doubled
    B : Halved
    C : Quadrupled
    D : unchanged
    Q.no 46. At high cutting speed, high temperature at tool-chip interface is caused
    by
  81. Heat generation rate increases with an increase in cutting speed
  82. Friction coefficient (μ) decreases with an increase in cutting speed
  83. The time required to transfer the heat decreases with an increase in cutting
    speed
  84. Localization of heat takes place with an increase in cutting speed
    A : 1,3 &4
    B : 1,2,3 &4
    C : 1,2,& 3
    D : 2,3 &4
    Q.no 47. Which one of the following is a hybrid non-conventional machinig
    process
    A : ECM
    B : EDM
    C : AWJM
    D : LBM
    Q.no 48. It is desired to perform the operations like drilling, reaming, counterboring etc. on a work piece. Which of the following machine will be used?
    A : Sensitive drilling machine
    B : Radial drilling machine
    C : Gang drilling machine
    D : Multiple spindle drilling
    machine
    Q.no 49. The tail stock set over required to turn a taper on the entire length of a
    workpiece having diameters D and d is
    A : D-d / (2L)
    B : D-d /(L)
    C : D-d /(2)
    D : D-d
    Q.no 50. If n=number of divisions required, then find the number of holes to be
    moved in direct indexing
    A : 12/n
    B : 24/n
    C : 40/n
    D : 120/n
    Q.no 51. Using the Taylor equation VT^n=c, calculate the percentage increase in
    tool life when the cutting speed is reduced is reduced by 50% (n=0.5 and c=400)
    A : 300%
    B : 400%
    C : 100%
    D : 200%
    Q.no 52. In orthogonal turning of MS bar of 65 mm diameter machined on a lathe
    with a feed of 0.8 mm was used. A continuous chip of 1.4 mm thickness was
    removed at a rotational speed of 85 rpm. The Chip thickness ratio, Chip reduction
    ratio and Total length of the Chip in One Minute respectively is
    A : 0.5714, 1.75, 9918 mm
    B : 1.75, 0.5714, 9915 mm
    C : 1.75, 9999 mm, 05714,
    D : 57.14, 1.75, 9999 mm
    Q.no 53. In face milling,What is the cutting speed when main axis spindle speed is
    350 rpm and the cutter diameter is 125 mm ?
    A : 137.4 m/min
    B : 142 m/min
    C : 150.2 m/min
    D : 130 m/min
    Q.no 54. The time required for machining a workpiece 50 mm dianeter 350 mm
    length, turn all over in four passes. The approach length is 12 mm, Overtravel
    10mm, the feed = 0.5 mm/rev, and cutting speed is 35m/min.
    A : 13.016 min
    B : 10.016 min
    C : 11.016 min
    D : 12.016 min
    Q.no 55. A tapered pin is to be prepared on a lathe machine. If the larger diameter
    is 90 mm, smaller diameter is 80 mm, length of the pin is 100 mm, Find the angle
    of taper at which the compound rest to be swivelled around
    A : 3 Degrees and 51 Minutes
    B : 2 Degrees and 15 Minutes
    C : 4 Degrees and 51 Minutes
    D : 2 Degrees and 51 Minutes
    Q.no 56. In the Taylor’s tool life equation, VT^n = C, the value of n=0.5. The tool life
    has a life of 180 minutes at a cutting speed of 18 m/min. If the tool life is reduced
    to 45 minutes, then the cutting speed will be
    A : 9 m/min
    B : 18 m/min
    C : 36 m/min
    D : 72 m/min
    Q.no 57. In an orthogonal cutting if the feed is 1.25 mm/rev, the chip thickness
    after cutting is 2 mm, then the chip thickness ratio and shear angle (for rake
    angle 10 Degrees) respectively are
    A : 0.525, 36.62 Degrees
    B : 0.625, 34.62 Degrees
    C : 0.425, 36.42 Degrees
    D : 0.325, 34.62 Degrees
    Q.no 58. A mild steel material is being turn for 50 mm length with a feed rate of
    0.15 mm/rev and spindle speed of 1400 rpm. The time required to cut the material
    in miniutes is
    A : 0.13
    B : 0.23
    C : 0.33
    D : 0.43
    Q.no 59. Calculate the cutting speed of drilling operation when diameter of drill is
    10 mm and rotational speed of drill is 200 r.p.m.
    A : 6.283 m/min
    B : 3.142 m/min
    C : 8.362 m/min
    D : 10.216 m/min
    Q.no 60. In orthogonal cutting feed is 0.2 mm/rev, Chip thickness is 0.3 mm, Rake
    angle is 15 degrees. Then the shear plane angle in degrees is
    A : 27.9
    B : 17.9
    C : 37.9
    D : 47.9
    Q.no 1. Which of the following come under the main components of ECM?
    A : Feed control system
    B : Work piece holding devices
    C : Electrolyte supply system
    D : All of the mentioned
    Q.no 2. A dynamo-meter is a device used for the measurement of
    A : Chip thickness ratio
    B : Forces during metal cutting
    C : Wear of the cutting tool
    D : Deflection of the cutting tool
    Q.no 3. A half nut is
    A : Damaged nut
    B : Nut manufactured in parts
    C : Nut with half the standard pitch
    D : Mechanism that locks the
    lathe carriage to the load
    screw for thread cutting
    Q.no 4. The usual value of the point angle of a drill is
    A : 70°
    B : 100°
    C : 118°
    D : 130°
    Q.no 5. Which of the following range of numbers represents dense structure of
    abrasives?
    A : 0-7
    B : 8-10
    C : 10-12
    D : 12-16
    Q.no 6. The main purpose of a boring operation, as compared to drilling, is to
    A : Drill a hole
    B : Finish the drilled hole
    C : Correct the hole
    D : Enlarge the existing hole
    Q.no 7. If a cutting tool is designed as 8°-14°-6°-8°-8°-19°-1mm what is the side Rake
    angle of the tool
    A : 14°
    B : 19°
    C : 6°
    D : 8°
    Q.no 8. Steady rest is
    A : An additional support provided for long jobs
    B : Used while turning unsymmetrical
    objects
    C : Used during Plain cutting only
    D : Used when a lathe is
    subject to vibrations
    Q.no 9. Which of the following method is not used for holding tool in drilling
    machine?
    A : by a sleeve
    B : by four jaw chucks
    C : by a socket
    D : By tool holder
    Q.no 10. Which of the following process have the lowest metal removal rate?
    A : Drilling
    B : Milling
    C : Reaming
    D : Honning
    Q.no 11. Of the following properties of nozzle, which of them does not influence
    the MRR in AJM?
    A : Size
    B : Material
    C : Outside temperature
    D : Distance from work piece
    Q.no 12. Lapping is an operation of_________
    A : Making a cone-shaped enlargement
    of the end of a hole
    B : Smoothing and squaring the
    surface around a hole
    C : Sizing and finishing a
    small diameter hole
    D : Producing a hole by
    removing metal along
    the circumference of
    a hollow cutting tool
    Q.no 13. In centreless grinding, workpiece centre will be
    A : Above the line joining the two
    wheel centres
    B : Below the line joining the two
    wheel centres
    C : On the line joining the two
    wheel centres
    D : At the intersection of the
    line joining the wheel
    centres with the workpiece
    Q.no 14. As the abrasive flow rate increases, what happens to the volumetric
    removal rate in AJM?
    A : Increases
    B : Decreases
    C : Increase and then decrease
    D : Decrease and then increase
    Q.no 15. Which of the following material/s cannot be used for making of nozzle in
    Abrasive jet machining?
    A : Tungsten Carbide
    B : Steel alloy
    C : Sapphire
    D : Synthetic sapphire
    Q.no 16. In centerless grinders, the regulating wheel is inclined at
    A : 0° to 8°
    B : 9° to 15°
    C : 16° to 20°
    D : 21° to 25°
    Q.no 17. The hardness of a grinding wheel is determined by the
    A : Hardness of abrasive grains
    B : Ability of the bond to retain abrasives
    C : Hardness of the bond
    D : Ability of the grinding wheel to penetrate the work piece
    Q.no 18. Which of the following processes is generally applied for dentistry work
    like to drill fine holes of particular shape in teeth?
    A : Electrical Discharge Machining (EDM)
    B : Electron Beam Machining (EBM)
    C : Laser Beam Machining (LBM)
    D : Ultrasonic Machining (USM)
    Q.no 19. The angle between the face and flank of the single point cutting tool is
    known as
    A : Rake angle
    B : Clearance angle
    C : Lip angle
    D : Point angle
    Q.no 20. Use of tail stock in cylindrical grinding machine is
    A : To drive the work piece
    B : To give feed to the wheel head
    C : To provide Speed to
    grinding wheel
    D : To support the
    other end of the
    work piece
    Q.no 21. When the metal is removed by erosion caused by rapidly recurring spark
    discharges between the tool and work, the process is known as
    A : Electrochemical machining
    B : Electro-discharge machining
    C : Ultrasonic machining
    D : None of these
    Q.no 22. In a milling operation, two side milling cutters are mounted with a
    desired distance between them so that both sides of a workpiece can be milled
    simultaneously. This set up is called
    A : Gang milling
    B : Straddle milling
    C : Face milling
    D : Side milling
    Q.no 23. In which process the material is removed due to the action of abrasive
    grains?
    A : Electron Beam Machining (EBM)
    B : Ultrasonic Machining (USM)
    C : Laser Beam Machining (LBM)
    D : Electrical Discharge Machining (EDM)
    Q.no 24. A grinding wheel is said to be of _ if it holds the abrasive grains
    more securely
    A : Soft grade
    B : Medium grade
    C : Hard grade
    D : very soft grade
    Q.no 25. Tool life in turning will decrease by maximum extent if we double the….
    A : Depth of cut
    B : Feed
    C : Cutting Velocity
    D : Tool rake angle
    Q.no 26. Which of the following is a not a surface finishing process?
    A : Honing
    B : Buffing
    C : Lapping
    D : Turning
    Q.no 27. Cast iron during machining produces
    A : Continuous chips
    B : Dis-Continuous chips
    C : Continuous chips with
    built-up-edge
    D : None of these
    Q.no 28. The operation of making a cone-shaped enlargement of the end of a hole
    is known as
    A : counter-sinking
    B : Counter-boring
    C : Treppaning
    D : Spot facing
    Q.no 29. A coarse grained grinding wheel is used to grind
    A : Soft and Hard materials
    B : Soft and ductile materials
    C : Hard Material
    D : Tough Material
    Q.no 30. Burnishing is a process of
    A : Cold working
    B : Hot working
    C : Press working
    D : Metal Cutting
    Q.no 31. What is the general life of Tungsten carbide material nozzle in AJM?
    A : 1 – 8 hrs
    B : 2 – 5 hrs
    C : 10 – 15 hrs
    D : 25 – 40 hrs
    Q.no 32. What is the value of abrasive grain flow rate in Abrasive jet machining?
    A : 0.1 – 2 g/min
    B : 3 – 20 g/min
    C : 30 – 56 g/min
    D : 68 – 85 g/min
    Q.no 33. Grinding wheel is specified as “A 46 K 5 B 17”. Grain size of a wheel will be
    A : Coarse
    B : Medium
    C : Fine
    D : Very Fine
    Q.no 34. In AJM, surface roughness value will vary between which values?
    A : 0.01 – 0.10 μm
    B : 0.15 – 1.5 μm
    C : 2.0 – 5.0 μm
    D : 7.0 – 10.0 μm
    Q.no 35. Amplitude of oscillation of tool in USM ranges between?
    A : 0.1-10 μm
    B : 10-40 μm
    C : 50-100 μm
    D : 100-1000 μm
    Q.no 36. Find the angle at which the compound rest should be set up to turn taper
    on the workpiece having a length of 20mm, larger diameter 45mm and the
    smaller diameter 30mm.
    A : 2 Degree 9 Minutes
    B : 3 Degree 9 Minutes
    C : 4 Degree 9 Minutes
    D : 5 Degree 9 Minutes
    Q.no 37. Which of the following specified grinding wheel will have Silicon carbide
    abrasive?
    A : Z 46 K 5 B 17
    B : C 600 K 5 B 17
    C : A 8 K 5 B 17
    D : A 80 K 5 B 17
    Q.no 38. Which one of the following is not a hybrid non-conventional machinig
    process
    A : ECDM
    B : AWJM
    C : Ultrasonic assisted EDM
    D : EBM
    Q.no 39. Which of the following specified grinding wheel will have Aluminum
    oxide abrasive?
    A : Z 46 K 5 B 17
    B : C 600 K 5 B 17
    C : C 8 K 5 B 17
    D : A 80 K 5 B 17
    Q.no 40. In machining operation, Uncut chip thickness t0= 0.8 mm and Chip
    thickness tc=1.2 mm. The correct option for the chip thickness ratio (r) is
    A : 0.4
    B : 0.66
    C : 0.84
    D : 1.5
    Q.no 41. The tail stock set over required to turn a taper on the entire length of a
    workpiece having diameters D and d is
    A : D-d / (2L)
    B : D-d /(L)
    C : D-d /(2)
    D : D-d
    Q.no 42. In Abrasive jet machining, what may be the size of the abrasive grains
    used?
    A : 10 – 40 μm
    B : 50 – 100 μm
    C : 100 – 150 μm
    D : 200 – 300 μm
    Q.no 43. Which one of the following is a hybrid non-conventional machinig
    process
    A : ECM
    B : EDM
    C : AWJM
    D : LBM
    Q.no 44. At high cutting speed, high temperature at tool-chip interface is caused
    by
  85. Heat generation rate increases with an increase in cutting speed
  86. Friction coefficient (μ) decreases with an increase in cutting speed
  87. The time required to transfer the heat decreases with an increase in cutting
    speed
  88. Localization of heat takes place with an increase in cutting speed
    A : 1,3 &4
    B : 1,2,3 &4
    C : 1,2,& 3
    D : 2,3 &4
    Q.no 45. If n=number of divisions required, then find the number of holes to be
    moved in direct indexing
    A : 12/n
    B : 24/n
    C : 40/n
    D : 120/n
    Q.no 46. The useful life of a HSS tool machining mild steel at18 m/min is 3 hr.
    Calculate the tool life when the tool operate at 24 m/min.
    A : 12 min
    B : 18 min
    C : 20 min
    D : 24 min
    Q.no 47. The swing diameter over the bed is………the height of the center
    measured from the bed of the lathe
    A : Equal to
    B : Twice
    C : Thrice
    D : One -half
    Q.no 48. Which one of the following process is worked on principle of electrolysis
    using eletrolyte
    A : EDM
    B : USM
    C : AJM
    D : ECM
    Q.no 49. Which of the following is not a media of energy transfer on which the
    advanced machining processes are classified?
    A : Reactive atmosphere
    B : Electrons
    C : Electrolyte
    D : Chemical ablation
    Q.no 50. It is desired to perform the operations like drilling, reaming, counterboring etc. on a work piece. Which of the following machine will be used?
    A : Sensitive drilling machine
    B : Radial drilling machine
    C : Gang drilling machine
    D : Multiple spindle drilling
    machine
    Q.no 51. Time required for one complete cut on the piece of work 350 mm long
    and 50 mm in diameter. the cutting speed is 35 m/min and feed is 0.5 mm/rev.
    A : 2.1 Min
    B : 3.1 Min
    C : 3.5 Min
    D : 3.6 Min
    Q.no 52. In Face Milling,What is the feed per tooth when the main axis spindle
    speed is 500 rpm, number of insert is 10, and table feed is 500mm/min
    A : 0.1 mm/tooth
    B : 0.7 mm/tooth
    C : 1 mm/tooth
    D : 7 mm/tooth
    Q.no 53. In orthogonal turning of MS bar of 65 mm diameter machined on a lathe
    with a feed of 0.8 mm was used. A continuous chip of 1.4 mm thickness was
    removed at a rotational speed of 85 rpm. The Chip thickness ratio, Chip reduction
    ratio and Total length of the Chip in One Minute respectively is
    A : 0.5714, 1.75, 9918 mm
    B : 1.75, 0.5714, 9915 mm
    C : 1.75, 9999 mm, 05714,
    D : 57.14, 1.75, 9999 mm
    Q.no 54. A shaft 1200 mm long has a taper of 1:100 for a length of 600 mm. The
    maximum diameter of the shaft to be 80 mm. Determine the minimum diameter
    of staft and amount of setover
    A : 78 mm & 22 mm
    B : 60 mm & 20 mm
    C : 65 mm & 15 mm
    D : 68 mm & 12 mm
    Q.no 55. Using the Taylor equation VT^n=c, calculate the percentage increase in
    tool life when the cutting speed is reduced is reduced by 50% (n=0.5 and c=400)
    A : 300%
    B : 400%
    C : 100%
    D : 200%
    Q.no 56. In a drilling operation using a twist drill, the lip angle is 120 degree
    (standard), the spindle speed is 300 rpm, the feed is 0.2 mm/rev and the drill
    diameter is 10 mm,calculate machining time to drill a hole of 30 mm long ?
    A : 0.88 min
    B : 0.54 min
    C : 1.2 min
    D : 3 min
    Q.no 57. In orthogonal cutting feed is 0.2 mm/rev, Chip thickness is 0.3 mm, Rake
    angle is 15 degrees. Then the shear plane angle in degrees is
    A : 27.9
    B : 17.9
    C : 37.9
    D : 47.9
    Q.no 58. A tapered pin is to be prepared on a lathe machine. If the larger diameter
    is 90 mm, smaller diameter is 80 mm, length of the pin is 100 mm, Find the angle
    of taper at which the compound rest to be swivelled around
    A : 3 Degrees and 51 Minutes
    B : 2 Degrees and 15 Minutes
    C : 4 Degrees and 51 Minutes
    D : 2 Degrees and 51 Minutes
    Q.no 59. Calculate the cutting speed of drilling operation when diameter of drill is
    10 mm and rotational speed of drill is 200 r.p.m.
    A : 6.283 m/min
    B : 3.142 m/min
    C : 8.362 m/min
    D : 10.216 m/min
    Q.no 60. In face milling,What is the cutting speed when main axis spindle speed is
    350 rpm and the cutter diameter is 125 mm ?
    A : 137.4 m/min
    B : 142 m/min
    C : 150.2 m/min
    D : 130 m/min
    Seat No –
    Total number of questions : 60
    1001438_T1 MANUFACTURING PROCESS II
    Time : 1hr
    Max Marks : 50
    N.B
    1) All questions are Multiple Choice Questions having single correct option.
    2) Attempt any 50 questions out of 60.
    3) Use of calculator is allowed.
    4) Each question carries 1 Mark.
    5) Specially abled students are allowed 20 minutes extra for examination.
    6) Do not use pencils to darken answer.
    7) Use only black/blue ball point pen to darken the appropriate circle.
    8) No change will be allowed once the answer is marked on OMR Sheet.
    9) Rough work shall not be done on OMR sheet or on question paper.
    10) Darken ONLY ONE CIRCLE for each answer.
    Q.no 1. Which type of adjustment required for gap voltages in ECM?
    A : Continuous adjustment
    B : Discontinuous adjustment
    C : Periodic adjustment
    D : All of the mentioned
    Q.no 2. The main purpose of a boring operation, as compared to drilling, is to
    A : Drill a hole
    B : Finish the drilled hole
    C : Correct the hole
    D : Enlarge the existing hole
    Q.no 3. The operation of producing grooves around the periphery of a cylindrical
    or conical workpiece is called
    A : profile milling
    B : Gang milling
    C : Saw milling
    D : Helical milling
    Q.no 4. The operation of making a cone-shaped enlargement of the end of a hole is
    known as
    A : counter-sinking
    B : Counter-boring
    C : Treppaning
    D : Spot facing
    Q.no 5. Which of the following processes is generally applied for dentistry work
    like to drill fine holes of particular shape in teeth?
    A : Electrical Discharge Machining (EDM)
    B : Electron Beam Machining (EBM)
    C : Laser Beam Machining (LBM)
    D : Ultrasonic Machining (USM)
    Q.no 6. In centreless grinding, workpiece centre will be
    A : Above the line joining the two
    wheel centres
    B : Below the line joining the two
    wheel centres
    C : On the line joining the two
    wheel centres
    D : At the intersection of the
    line joining the wheel
    centres with the workpiece
    Q.no 7. Twist drills are made of
    A : High speed steel
    B : Mild Steel
    C : Stainless steel
    D : High Carbon Steel
    Q.no 8. Which of the following method is not used for holding tool in drilling
    machine?
    A : by a sleeve
    B : by four jaw chucks
    C : by a socket
    D : By tool holder
    Q.no 9. In _ operation, the chip thickness is minimum at the beginning of
    the
    A : conventional milling
    B : climb milling
    C : face milling
    D : end milling
    Q.no 10. Use of tail stock in cylindrical grinding machine is
    A : To drive the work piece
    B : To give feed to the wheel head
    C : To provide Speed to
    grinding wheel
    D : To support the
    other end of the
    work piece
    Q.no 11. A dynamo-meter is a device used for the measurement of
    A : Chip thickness ratio
    B : Forces during metal cutting
    C : Wear of the cutting tool
    D : Deflection of the cutting tool
    Q.no 12. Grinding wheel Tool signature consists of _
    elements
    A : 4
    B : 5
    C : 6
    D : 7
    Q.no 13. Lapping is an operation of_________
    A : Making a cone-shaped enlargement
    of the end of a hole
    B : Smoothing and squaring the
    surface around a hole
    C : Sizing and finishing a
    small diameter hole
    D : Producing a hole by
    removing metal along
    the circumference of
    a hollow cutting tool
    Q.no 14. Which of the following process have the lowest metal removal rate?
    A : Drilling
    B : Milling
    C : Reaming
    D : Honning
    Q.no 15. In oblique cutting of metals, the cutting edge of the tools is.
    A : Perpendicular to the workpiece
    B : Perpendicular to the direction of
    tool travel
    C : Parallel to the direction of
    tool travel
    D : Inclined at an angle less
    than 90 to the direction of tool travel
    Q.no 16. When the metal is removed by erosion caused by rapidly recurring spark
    discharges between the tool and work, the process is known as
    A : Electrochemical machining
    B : Electro-discharge machining
    C : Ultrasonic machining
    D : None of these
    Q.no 17. A grinding wheel is said to be of _ if it holds the abrasive grains
    more securely
    A : Soft grade
    B : Medium grade
    C : Hard grade
    D : very soft grade
    Q.no 18. The hardness of a grinding wheel is determined by the
    A : Hardness of abrasive grains
    B : Ability of the bond to retain abrasives
    C : Hardness of the bond
    D : Ability of the grinding wheel to penetrate the work piece
    Q.no 19. Tool life in turning will decrease by maximum extent if we double the….
    A : Depth of cut
    B : Feed
    C : Cutting Velocity
    D : Tool rake angle
    Q.no 20. Which of the following symbol’s range of alphabet represent soft grain in
    grinding wheel?
    A : A – H
    B : I – P
    C : Q – T
    D : T – Z
    Q.no 21. Which of the following is a not a surface finishing process?
    A : Honing
    B : Buffing
    C : Lapping
    D : Turning
    Q.no 22. Shear angle varies with
    A : Cutting speed
    B : Feed
    C : Depth of cut
    D : Work piece materials and
    tool geometry
    Q.no 23. The angle between the face and flank of the single point cutting tool is
    known as
    A : Rake angle
    B : Clearance angle
    C : Lip angle
    D : Point angle
    Q.no 24. For which of the following operations, broaching can be used?
    A : Threading
    B : Grinding
    C : Spline cutting
    D : Increasing the size of the
    existing hole for a certain
    length
    Q.no 25. The usual value of the point angle of a drill is
    A : 70°
    B : 100°
    C : 118°
    D : 130°
    Q.no 26. Discontinuous chips are formed during machine of
    A : Brittle metals
    B : Ductile metals
    C : Soft metals
    D : Tough metals
    Q.no 27. In Abrasive jet machining, work piece material of removed by which of
    the following means?
    A : Vaporization
    B : Electro plating
    C : Mechanical abrasion
    D : Corrosion
    Q.no 28. Of the following properties of nozzle, which of them does not influence
    the MRR in AJM?
    A : Size
    B : Material
    C : Outside temperature
    D : Distance from work piece
    Q.no 29. A coarse grained grinding wheel is used to grind
    A : Soft and Hard materials
    B : Soft and ductile materials
    C : Hard Material
    D : Tough Material
    Q.no 30. Which of the following come under the main components of ECM?
    A : Feed control system
    B : Work piece holding devices
    C : Electrolyte supply system
    D : All of the mentioned
    Q.no 31. The tail stock set over required to turn a taper on the entire length of a
    workpiece having diameters D and d is
    A : D-d / (2L)
    B : D-d /(L)
    C : D-d /(2)
    D : D-d
    Q.no 32. Which of the following specified grinding wheel will have Aluminum
    oxide abrasive?
    A : Z 46 K 5 B 17
    B : C 600 K 5 B 17
    C : C 8 K 5 B 17
    D : A 80 K 5 B 17
    Q.no 33. It is desired to perform the operations like drilling, reaming, counterboring etc. on a work piece. Which of the following machine will be used?
    A : Sensitive drilling machine
    B : Radial drilling machine
    C : Gang drilling machine
    D : Multiple spindle drilling
    machine
    Q.no 34. In machining operation, Uncut chip thickness t0= 0.8 mm and Chip
    thickness tc=1.2 mm. The correct option for the chip thickness ratio (r) is
    A : 0.4
    B : 0.66
    C : 0.84
    D : 1.5
    Q.no 35. What is the general life of Tungsten carbide material nozzle in AJM?
    A : 1 – 8 hrs
    B : 2 – 5 hrs
    C : 10 – 15 hrs
    D : 25 – 40 hrs
    Q.no 36. Amplitude of oscillation of tool in USM ranges between?
    A : 0.1-10 μm
    B : 10-40 μm
    C : 50-100 μm
    D : 100-1000 μm
    Q.no 37. Which one of the following is a hybrid non-conventional machinig
    process
    A : ECM
    B : EDM
    C : AWJM
    D : LBM
    Q.no 38. Which of the following is not a media of energy transfer on which the
    advanced machining processes are classified?
    A : Reactive atmosphere
    B : Electrons
    C : Electrolyte
    D : Chemical ablation
    Q.no 39. What is the value of abrasive grain flow rate in Abrasive jet machining?
    A : 0.1 – 2 g/min
    B : 3 – 20 g/min
    C : 30 – 56 g/min
    D : 68 – 85 g/min
    Q.no 40. Find the angle at which the compound rest should be set up to turn taper
    on the workpiece having a length of 20mm, larger diameter 45mm and the
    smaller diameter 30mm.
    A : 2 Degree 9 Minutes
    B : 3 Degree 9 Minutes
    C : 4 Degree 9 Minutes
    D : 5 Degree 9 Minutes
    Q.no 41. If n=number of divisions required, then find the number of holes to be
    moved in direct indexing
    A : 12/n
    B : 24/n
    C : 40/n
    D : 120/n
    Q.no 42. Grinding wheel is specified as “A 46 K 5 B 17”. Grain size of a wheel will be
    A : Coarse
    B : Medium
    C : Fine
    D : Very Fine
    Q.no 43. In an orthogonal cutting the depth of cut is halved and the feed is double.
    If the chip thickness ratio is unaffected with the changed cutting conditions the
    actual chip thickness will be
    A : Doubled
    B : Halved
    C : Quadrupled
    D : unchanged
    Q.no 44. In AJM, surface roughness value will vary between which values?
    A : 0.01 – 0.10 μm
    B : 0.15 – 1.5 μm
    C : 2.0 – 5.0 μm
    D : 7.0 – 10.0 μm
    Q.no 45. Which one of the following process is worked on principle of Mechanical
    errosion
    A : AJM
    B : EDM
    C : ECM
    D : PAM
    Q.no 46. At high cutting speed, high temperature at tool-chip interface is caused
    by
  89. Heat generation rate increases with an increase in cutting speed
  90. Friction coefficient (μ) decreases with an increase in cutting speed
  91. The time required to transfer the heat decreases with an increase in cutting
    speed
  92. Localization of heat takes place with an increase in cutting speed
    A : 1,3 &4
    B : 1,2,3 &4
    C : 1,2,& 3
    D : 2,3 &4
    Q.no 47. Which one of the following is not a hybrid non-conventional machinig
    process
    A : ECDM
    B : AWJM
    C : Ultrasonic assisted EDM
    D : EBM
    Q.no 48. Frequency of tool’s oscillation in USM ranges between?
    A : 5-10 kHz
    B : 10-15 kHz
    C : 18-20 kHz
    D : 25-50 kHz
    Q.no 49. In Abrasive jet machining, what may be the size of the abrasive grains
    used?
    A : 10 – 40 μm
    B : 50 – 100 μm
    C : 100 – 150 μm
    D : 200 – 300 μm
    Q.no 50. Which one of the following process is worked on principle of electrolysis
    using eletrolyte
    A : EDM
    B : USM
    C : AJM
    D : ECM
    Q.no 51. In orthogonal cutting feed is 0.2 mm/rev, Chip thickness is 0.3 mm, Rake
    angle is 15 degrees. Then the shear plane angle in degrees is
    A : 27.9
    B : 17.9
    C : 37.9
    D : 47.9
    Q.no 52. Calculate the cutting speed of drilling operation when diameter of drill is
    10 mm and rotational speed of drill is 200 r.p.m.
    A : 6.283 m/min
    B : 3.142 m/min
    C : 8.362 m/min
    D : 10.216 m/min
    Q.no 53. In Face Milling,What is the feed per tooth when the main axis spindle
    speed is 500 rpm, number of insert is 10, and table feed is 500mm/min
    A : 0.1 mm/tooth
    B : 0.7 mm/tooth
    C : 1 mm/tooth
    D : 7 mm/tooth
    Q.no 54. A shaft 1200 mm long has a taper of 1:100 for a length of 600 mm. The
    maximum diameter of the shaft to be 80 mm. Determine the minimum diameter
    of staft and amount of setover
    A : 78 mm & 22 mm
    B : 60 mm & 20 mm
    C : 65 mm & 15 mm
    D : 68 mm & 12 mm
    Q.no 55. In the Taylor’s tool life equation, VT^n = C, the value of n=0.5. The tool life
    has a life of 180 minutes at a cutting speed of 18 m/min. If the tool life is reduced
    to 45 minutes, then the cutting speed will be
    A : 9 m/min
    B : 18 m/min
    C : 36 m/min
    D : 72 m/min
    Q.no 56. The time required for machining a workpiece 50 mm dianeter 350 mm
    length, turn all over in four passes. The approach length is 12 mm, Overtravel
    10mm, the feed = 0.5 mm/rev, and cutting speed is 35m/min.
    A : 13.016 min
    B : 10.016 min
    C : 11.016 min
    D : 12.016 min
    Q.no 57. In orthogonal turning of MS bar of 65 mm diameter machined on a lathe
    with a feed of 0.8 mm was used. A continuous chip of 1.4 mm thickness was
    removed at a rotational speed of 85 rpm. The Chip thickness ratio, Chip reduction
    ratio and Total length of the Chip in One Minute respectively is
    A : 0.5714, 1.75, 9918 mm
    B : 1.75, 0.5714, 9915 mm
    C : 1.75, 9999 mm, 05714,
    D : 57.14, 1.75, 9999 mm
    Q.no 58. In an orthogonal cutting if the feed is 1.25 mm/rev, the chip thickness
    after cutting is 2 mm, then the chip thickness ratio and shear angle (for rake
    angle 10 Degrees) respectively are
    A : 0.525, 36.62 Degrees
    B : 0.625, 34.62 Degrees
    C : 0.425, 36.42 Degrees
    D : 0.325, 34.62 Degrees
    Q.no 59. In face milling,What is the cutting speed when main axis spindle speed is
    350 rpm and the cutter diameter is 125 mm ?
    A : 137.4 m/min
    B : 142 m/min
    C : 150.2 m/min
    D : 130 m/min
    Q.no 60. A tapered pin is to be prepared on a lathe machine. If the larger diameter
    is 90 mm, smaller diameter is 80 mm, length of the pin is 100 mm, Find the angle
    of taper at which the compound rest to be swivelled around
    A : 3 Degrees and 51 Minutes
    B : 2 Degrees and 15 Minutes
    C : 4 Degrees and 51 Minutes
    D : 2 Degrees and 51 Minutes
    Q.no 1. Removing dull grains in order to make grinding wheel sharp is known as
    A : Loading
    B : Glazing
    C : Dressing
    D : Trueing
    Q.no 2. If a cutting tool is designed as 8°-14°-6°-8°-8°-19°-1mm what is the side Rake
    angle of the tool
    A : 14°
    B : 19°
    C : 6°
    D : 8°
    Q.no 3. In Electro discharge machining, materials with low melting point have
    which type of material removal rate?
    A : Very low
    B : Low
    C : Medium
    D : High
    Q.no 4. Burnishing is a process of
    A : Cold working
    B : Hot working
    C : Press working
    D : Metal Cutting
    Q.no 5. Steady rest is
    A : An additional support provided for long jobs
    B : Used while turning unsymmetrical
    objects
    C : Used during Plain cutting only
    D : Used when a lathe is
    subject to vibrations
    Q.no 6. As the abrasive flow rate increases, what happens to the volumetric
    removal rate in AJM?
    A : Increases
    B : Decreases
    C : Increase and then decrease
    D : Decrease and then increase
    Q.no 7. How is material removed in Electro discharge machining?
    A : Melt and evaporate
    B : Corrode and break
    C : Mechanical erosion takes place
    D : None of the mentioned
    Q.no 8. In which process the material is removed due to the action of abrasive
    grains?
    A : Electron Beam Machining (EBM)
    B : Ultrasonic Machining (USM)
    C : Laser Beam Machining (LBM)
    D : Electrical Discharge Machining (EDM)
    Q.no 9. The tool life is said to be over if
    A : Poor surface finish is obtained
    B : There is sudden increase in cutting
    forces and power consumption
    C : Overheating and fuming due to
    heat of friction starts
    D : All of the above
    Q.no 10. In a milling operation, two side milling cutters are mounted with a
    desired distance between them so that both sides of a workpiece can be milled
    simultaneously. This set up is called
    A : Gang milling
    B : Straddle milling
    C : Face milling
    D : Side milling
    Q.no 11. Which of the following range of numbers represents dense structure of
    abrasives?
    A : 0-7
    B : 8-10
    C : 10-12
    D : 12-16
    Q.no 12. Carbide tipped tools usually have
    A : Negative rake angle
    B : Positive rake angle
    C : Any rake angle
    D : No rake angle
    Q.no 13. Feed control system is responsible for which action in ECM?
    A : Giving feed to tool
    B : Electrolyte supply
    C : Power supply
    D : None of the mentioned
    Q.no 14. Which of the following material/s cannot be used for making of nozzle in
    Abrasive jet machining?
    A : Tungsten Carbide
    B : Steel alloy
    C : Sapphire
    D : Synthetic sapphire
    Q.no 15. If l=length of travel of the drill in mm, n=rpm of the drill, s= feed per
    revolution of the drill in mm. Then machining time can be given as_____
    A : (ln)/s B : (ls)/n
    C : l/(n*s)
    D : (1+n)/s
    Q.no 16. A half nut is
    A : Damaged nut
    B : Nut manufactured in parts
    C : Nut with half the standard pitch
    D : Mechanism that locks the
    lathe carriage to the load
    screw for thread cutting
    Q.no 17. In centerless grinders, the regulating wheel is inclined at
    A : 0° to 8°
    B : 9° to 15°
    C : 16° to 20°
    D : 21° to 25°
    Q.no 18. A grinding ratio of 200 implies that the
    A : Grinding wheel wears 200 times the
    volume of the material removed
    B : grinding wheel wears 0.005 times
    the volume of the material removed
    C : aspect ratio of abrasive
    particles used in the
    grinding wheel is 200
    D : ratio of volume
    of abrasive particle
    to that of grinding
    wheel is 200
    Q.no 19. Cast iron during machining produces
    A : Continuous chips
    B : Dis-Continuous chips
    C : Continuous chips with
    built-up-edge
    D : None of these
    Q.no 20. Which of the following process has highest rate of metal removal
    A : Electric Discharge Machining (EDM)
    B : Electro-Chemical Machining (ECM)
    C : Ultrasonic Machining (USM)
    D : Laser Beam Machining (LBM)
    Q.no 21. The operation of making a cone-shaped enlargement of the end of a hole
    is known as
    A : counter-sinking
    B : Counter-boring
    C : Treppaning
    D : Spot facing
    Q.no 22. Twist drills are made of
    A : High speed steel
    B : Mild Steel
    C : Stainless steel
    D : High Carbon Steel
    Q.no 23. Which of the following come under the main components of ECM?
    A : Feed control system
    B : Work piece holding devices
    C : Electrolyte supply system
    D : All of the mentioned
    Q.no 24. The usual value of the point angle of a drill is
    A : 70°
    B : 100°
    C : 118°
    D : 130°
    Q.no 25. A grinding wheel is said to be of if it holds the abrasive grains
    more securely
    A : Soft grade
    B : Medium grade
    C : Hard grade
    D : very soft grade
    Q.no 26. Which of the following method is not used for holding tool in drilling
    machine?
    A : by a sleeve
    B : by four jaw chucks
    C : by a socket
    D : By tool holder
    Q.no 27. When the metal is removed by erosion caused by rapidly recurring spark
    discharges between the tool and work, the process is known as
    A : Electrochemical machining
    B : Electro-discharge machining
    C : Ultrasonic machining
    D : None of these
    Q.no 28. In centreless grinding, workpiece centre will be
    A : Above the line joining the two
    wheel centres
    B : Below the line joining the two
    wheel centres
    C : On the line joining the two
    wheel centres
    D : At the intersection of the
    line joining the wheel
    centres with the workpiece
    Q.no 29. The hardness of a grinding wheel is determined by the
    A : Hardness of abrasive grains
    B : Ability of the bond to retain abrasives
    C : Hardness of the bond
    D : Ability of the grinding wheel to penetrate the work piece
    Q.no 30. Which of the following process have the lowest metal removal rate?
    A : Drilling
    B : Milling
    C : Reaming
    D : Honning
    Q.no 31. The swing diameter over the bed is………the height of the center
    measured from the bed of the lathe
    A : Equal to
    B : Twice
    C : Thrice
    D : One -half
    Q.no 32. The useful life of a HSS tool machining mild steel at18 m/min is 3 hr.
    Calculate the tool life when the tool operate at 24 m/min.
    A : 12 min
    B : 18 min
    C : 20 min
    D : 24 min
    Q.no 33. Which of the following specified grinding wheel will have Silicon carbide
    abrasive?
    A : Z 46 K 5 B 17
    B : C 600 K 5 B 17
    C : A 8 K 5 B 17
    D : A 80 K 5 B 17
    Q.no 34. It is desired to perform the operations like drilling, reaming, counterboring etc. on a work piece. Which of the following machine will be used?
    A : Sensitive drilling machine
    B : Radial drilling machine
    C : Gang drilling machine
    D : Multiple spindle drilling
    machine
    Q.no 35. In Abrasive jet machining, what may be the size of the abrasive grains
    used?
    A : 10 – 40 μm
    B : 50 – 100 μm
    C : 100 – 150 μm
    D : 200 – 300 μm
    Q.no 36. What is the value of abrasive grain flow rate in Abrasive jet machining?
    A : 0.1 – 2 g/min
    B : 3 – 20 g/min
    C : 30 – 56 g/min
    D : 68 – 85 g/min
    Q.no 37. Grinding wheel is specified as “A 46 K 5 B 17”. Grain size of a wheel will be
    A : Coarse
    B : Medium
    C : Fine
    D : Very Fine
    Q.no 38. What is the general life of Tungsten carbide material nozzle in AJM?
    A : 1 – 8 hrs
    B : 2 – 5 hrs
    C : 10 – 15 hrs
    D : 25 – 40 hrs
    Q.no 39. In machining operation, Uncut chip thickness t0= 0.8 mm and Chip
    thickness tc=1.2 mm. The correct option for the chip thickness ratio (r) is
    A : 0.4
    B : 0.66
    C : 0.84
    D : 1.5
    Q.no 40. Which one of the following process is worked on principle of Mechanical
    errosion
    A : AJM
    B : EDM
    C : ECM
    D : PAM
    Q.no 41. Amplitude of oscillation of tool in USM ranges between?
    A : 0.1-10 μm
    B : 10-40 μm
    C : 50-100 μm
    D : 100-1000 μm
    Q.no 42. Which one of the following process is worked on principle of electrolysis
    using eletrolyte
    A : EDM
    B : USM
    C : AJM
    D : ECM
    Q.no 43. In an orthogonal cutting the depth of cut is halved and the feed is double.
    If the chip thickness ratio is unaffected with the changed cutting conditions the
    actual chip thickness will be
    A : Doubled
    B : Halved
    C : Quadrupled
    D : unchanged
    Q.no 44. The tail stock set over required to turn a taper on the entire length of a
    workpiece having diameters D and d is
    A : D-d / (2L)
    B : D-d /(L)
    C : D-d /(2)
    D : D-d
    Q.no 45. Which one of the following is not a hybrid non-conventional machinig
    process
    A : ECDM
    B : AWJM
    C : Ultrasonic assisted EDM
    D : EBM
    Q.no 46. In AJM, surface roughness value will vary between which values?
    A : 0.01 – 0.10 μm
    B : 0.15 – 1.5 μm
    C : 2.0 – 5.0 μm
    D : 7.0 – 10.0 μm
    Q.no 47. Frequency of tool’s oscillation in USM ranges between?
    A : 5-10 kHz
    B : 10-15 kHz
    C : 18-20 kHz
    D : 25-50 kHz
    Q.no 48. Which one of the following is a hybrid non-conventional machinig
    process
    A : ECM
    B : EDM
    C : AWJM
    D : LBM
    Q.no 49. Which of the following is not a media of energy transfer on which the
    advanced machining processes are classified?
    A : Reactive atmosphere
    B : Electrons
    C : Electrolyte
    D : Chemical ablation
    Q.no 50. If n=number of divisions required, then find the number of holes to be
    moved in direct indexing
    A : 12/n
    B : 24/n
    C : 40/n
    D : 120/n
    Q.no 51. In a drilling operation using a twist drill, the lip angle is 120 degree
    (standard), the spindle speed is 300 rpm, the feed is 0.2 mm/rev and the drill
    diameter is 10 mm,calculate machining time to drill a hole of 30 mm long ?
    A : 0.88 min
    B : 0.54 min
    C : 1.2 min
    D : 3 min
    Q.no 52. A mild steel material is being turn for 50 mm length with a feed rate of
    0.15 mm/rev and spindle speed of 1400 rpm. The time required to cut the material
    in miniutes is
    A : 0.13
    B : 0.23
    C : 0.33
    D : 0.43
    Q.no 53. Time required for one complete cut on the piece of work 350 mm long
    and 50 mm in diameter. the cutting speed is 35 m/min and feed is 0.5 mm/rev.
    A : 2.1 Min
    B : 3.1 Min
    C : 3.5 Min
    D : 3.6 Min
    Q.no 54. Using the Taylor equation VT^n=c, calculate the percentage increase in
    tool life when the cutting speed is reduced is reduced by 50% (n=0.5 and c=400)
    A : 300%
    B : 400%
    C : 100%
    D : 200%
    Q.no 55. A tapered pin is to be prepared on a lathe machine. If the larger diameter
    is 90 mm, smaller diameter is 80 mm, length of the pin is 100 mm, Find the angle
    of taper at which the compound rest to be swivelled around
    A : 3 Degrees and 51 Minutes
    B : 2 Degrees and 15 Minutes
    C : 4 Degrees and 51 Minutes
    D : 2 Degrees and 51 Minutes
    Q.no 56. In Face Milling,What is the feed per tooth when the main axis spindle
    speed is 500 rpm, number of insert is 10, and table feed is 500mm/min
    A : 0.1 mm/tooth
    B : 0.7 mm/tooth
    C : 1 mm/tooth
    D : 7 mm/tooth
    Q.no 57. In face milling,What is the cutting speed when main axis spindle speed is
    350 rpm and the cutter diameter is 125 mm ?
    A : 137.4 m/min
    B : 142 m/min
    C : 150.2 m/min
    D : 130 m/min
    Q.no 58. The time required for machining a workpiece 50 mm dianeter 350 mm
    length, turn all over in four passes. The approach length is 12 mm, Overtravel
    10mm, the feed = 0.5 mm/rev, and cutting speed is 35m/min.
    A : 13.016 min
    B : 10.016 min
    C : 11.016 min
    D : 12.016 min
    Q.no 59. In orthogonal turning of MS bar of 65 mm diameter machined on a lathe
    with a feed of 0.8 mm was used. A continuous chip of 1.4 mm thickness was
    removed at a rotational speed of 85 rpm. The Chip thickness ratio, Chip reduction
    ratio and Total length of the Chip in One Minute respectively is
    A : 0.5714, 1.75, 9918 mm
    B : 1.75, 0.5714, 9915 mm
    C : 1.75, 9999 mm, 05714,
    D : 57.14, 1.75, 9999 mm
    Q.no 60. Calculate the cutting speed of drilling operation when diameter of drill is
    10 mm and rotational speed of drill is 200 r.p.m.
    A : 6.283 m/min
    B : 3.142 m/min
    C : 8.362 m/min
    D : 10.216 m/min
    Q.no 1. In _
    operation, the chip thickness is minimum at the beginning of
    the
    A : conventional milling
    B : climb milling
    C : face milling
    D : end milling
    Q.no 2. Lapping is an operation of_________
    A : Making a cone-shaped enlargement
    of the end of a hole
    B : Smoothing and squaring the
    surface around a hole
    C : Sizing and finishing a
    small diameter hole
    D : Producing a hole by
    removing metal along
    the circumference of
    a hollow cutting tool
    Q.no 3. In which process the material is removed due to the action of abrasive
    grains?
    A : Electron Beam Machining (EBM)
    B : Ultrasonic Machining (USM)
    C : Laser Beam Machining (LBM)
    D : Electrical Discharge Machining (EDM)
    Q.no 4. A coarse grained grinding wheel is used to grind
    A : Soft and Hard materials
    B : Soft and ductile materials
    C : Hard Material
    D : Tough Material
    Q.no 5. The angle between the face and flank of the single point cutting tool is
    known as
    A : Rake angle
    B : Clearance angle
    C : Lip angle
    D : Point angle
    Q.no 6. In Electro discharge machining, materials with low melting point have
    which type of material removal rate?
    A : Very low
    B : Low
    C : Medium
    D : High
    Q.no 7. In oblique cutting of metals, the cutting edge of the tools is.
    A : Perpendicular to the workpiece
    B : Perpendicular to the direction of
    tool travel
    C : Parallel to the direction of
    tool travel
    D : Inclined at an angle less
    than 90 to the direction of tool travel
    Q.no 8. Use of tail stock in cylindrical grinding machine is
    A : To drive the work piece
    B : To give feed to the wheel head
    C : To provide Speed to
    grinding wheel
    D : To support the
    other end of the
    work piece
    Q.no 9. As the abrasive flow rate increases, what happens to the volumetric
    removal rate in AJM?
    A : Increases
    B : Decreases
    C : Increase and then decrease
    D : Decrease and then increase
    Q.no 10. Which of the following processes is generally applied for dentistry work
    like to drill fine holes of particular shape in teeth?
    A : Electrical Discharge Machining (EDM)
    B : Electron Beam Machining (EBM)
    C : Laser Beam Machining (LBM)
    D : Ultrasonic Machining (USM)
    Q.no 11. Steady rest is
    A : An additional support provided for long jobs
    B : Used while turning unsymmetrical
    objects
    C : Used during Plain cutting only
    D : Used when a lathe is
    subject to vibrations
    Q.no 12. In a milling operation, two side milling cutters are mounted with a
    desired distance between them so that both sides of a workpiece can be milled
    simultaneously. This set up is called
    A : Gang milling
    B : Straddle milling
    C : Face milling
    D : Side milling
    Q.no 13. Which of the following is a not a surface finishing process?
    A : Honing
    B : Buffing
    C : Lapping
    D : Turning
    Q.no 14. Discontinuous chips are formed during machine of
    A : Brittle metals
    B : Ductile metals
    C : Soft metals
    D : Tough metals
    Q.no 15. The operation of producing grooves around the periphery of a cylindrical
    or conical workpiece is called
    A : profile milling
    B : Gang milling
    C : Saw milling
    D : Helical milling
    Q.no 16. In Abrasive jet machining, work piece material of removed by which of
    the following means?
    A : Vaporization
    B : Electro plating
    C : Mechanical abrasion
    D : Corrosion
    Q.no 17. How is material removed in Electro discharge machining?
    A : Melt and evaporate
    B : Corrode and break
    C : Mechanical erosion takes place
    D : None of the mentioned
    Q.no 18. Tool life in turning will decrease by maximum extent if we double the….
    A : Depth of cut
    B : Feed
    C : Cutting Velocity
    D : Tool rake angle
    Q.no 19. Removing dull grains in order to make grinding wheel sharp is known as
    A : Loading
    B : Glazing
    C : Dressing
    D : Trueing
    Q.no 20. A dynamo-meter is a device used for the measurement of
    A : Chip thickness ratio
    B : Forces during metal cutting
    C : Wear of the cutting tool
    D : Deflection of the cutting tool
    Q.no 21. Of the following properties of nozzle, which of them does not influence
    the MRR in AJM?
    A : Size
    B : Material
    C : Outside temperature
    D : Distance from work piece
    Q.no 22. Which of the following symbol’s range of alphabet represent soft grain in
    grinding wheel?
    A : A – H
    B : I – P
    C : Q – T
    D : T – Z
    Q.no 23. Grinding wheel Tool signature consists of __ elements
    A : 4
    B : 5
    C : 6
    D : 7
    Q.no 24. If a cutting tool is designed as 8°-14°-6°-8°-8°-19°-1mm what is the side
    Rake angle of the tool
    A : 14°
    B : 19°
    C : 6°
    D : 8°
    Q.no 25. Which type of adjustment required for gap voltages in ECM?
    A : Continuous adjustment
    B : Discontinuous adjustment
    C : Periodic adjustment
    D : All of the mentioned
    Q.no 26. For which of the following operations, broaching can be used?
    A : Threading
    B : Grinding
    C : Spline cutting
    D : Increasing the size of the
    existing hole for a certain
    length
    Q.no 27. The main purpose of a boring operation, as compared to drilling, is to
    A : Drill a hole
    B : Finish the drilled hole
    C : Correct the hole
    D : Enlarge the existing hole
    Q.no 28. Shear angle varies with
    A : Cutting speed
    B : Feed
    C : Depth of cut
    D : Work piece materials and
    tool geometry
    Q.no 29. Burnishing is a process of
    A : Cold working
    B : Hot working
    C : Press working
    D : Metal Cutting
    Q.no 30. The tool life is said to be over if
    A : Poor surface finish is obtained
    B : There is sudden increase in cutting
    forces and power consumption
    C : Overheating and fuming due to
    heat of friction starts
    D : All of the above
    Q.no 31. At high cutting speed, high temperature at tool-chip interface is caused
    by
  93. Heat generation rate increases with an increase in cutting speed
  94. Friction coefficient (μ) decreases with an increase in cutting speed
  95. The time required to transfer the heat decreases with an increase in cutting
    speed
  96. Localization of heat takes place with an increase in cutting speed
    A : 1,3 &4
    B : 1,2,3 &4
    C : 1,2,& 3
    D : 2,3 &4
    Q.no 32. Which of the following specified grinding wheel will have Silicon carbide
    abrasive?
    A : Z 46 K 5 B 17
    B : C 600 K 5 B 17
    C : A 8 K 5 B 17
    D : A 80 K 5 B 17
    Q.no 33. Which of the following specified grinding wheel will have Aluminum
    oxide abrasive?
    A : Z 46 K 5 B 17
    B : C 600 K 5 B 17
    C : C 8 K 5 B 17
    D : A 80 K 5 B 17
    Q.no 34. The useful life of a HSS tool machining mild steel at18 m/min is 3 hr.
    Calculate the tool life when the tool operate at 24 m/min.
    A : 12 min
    B : 18 min
    C : 20 min
    D : 24 min
    Q.no 35. The swing diameter over the bed is………the height of the center
    measured from the bed of the lathe
    A : Equal to
    B : Twice
    C : Thrice
    D : One -half
    Q.no 36. Find the angle at which the compound rest should be set up to turn taper
    on the workpiece having a length of 20mm, larger diameter 45mm and the
    smaller diameter 30mm.
    A : 2 Degree 9 Minutes
    B : 3 Degree 9 Minutes
    C : 4 Degree 9 Minutes
    D : 5 Degree 9 Minutes
    Q.no 37. Which one of the following is a hybrid non-conventional machinig
    process
    A : ECM
    B : EDM
    C : AWJM
    D : LBM
    Q.no 38. In Abrasive jet machining, what may be the size of the abrasive grains
    used?
    A : 10 – 40 μm
    B : 50 – 100 μm
    C : 100 – 150 μm
    D : 200 – 300 μm
    Q.no 39. If n=number of divisions required, then find the number of holes to be
    moved in direct indexing
    A : 12/n
    B : 24/n
    C : 40/n
    D : 120/n
    Q.no 40. In an orthogonal cutting the depth of cut is halved and the feed is double.
    If the chip thickness ratio is unaffected with the changed cutting conditions the
    actual chip thickness will be
    A : Doubled
    B : Halved
    C : Quadrupled
    D : unchanged
    Q.no 41. It is desired to perform the operations like drilling, reaming, counterboring etc. on a work piece. Which of the following machine will be used?
    A : Sensitive drilling machine
    B : Radial drilling machine
    C : Gang drilling machine
    D : Multiple spindle drilling
    machine
    Q.no 42. Amplitude of oscillation of tool in USM ranges between?
    A : 0.1-10 μm
    B : 10-40 μm
    C : 50-100 μm
    D : 100-1000 μm
    Q.no 43. What is the value of abrasive grain flow rate in Abrasive jet machining?
    A : 0.1 – 2 g/min
    B : 3 – 20 g/min
    C : 30 – 56 g/min
    D : 68 – 85 g/min
    Q.no 44. Which one of the following process is worked on principle of electrolysis
    using eletrolyte
    A : EDM
    B : USM
    C : AJM
    D : ECM
    Q.no 45. The tail stock set over required to turn a taper on the entire length of a
    workpiece having diameters D and d is
    A : D-d / (2L)
    B : D-d /(L)
    C : D-d /(2)
    D : D-d
    Q.no 46. In machining operation, Uncut chip thickness t0= 0.8 mm and Chip
    thickness tc=1.2 mm. The correct option for the chip thickness ratio (r) is
    A : 0.4
    B : 0.66
    C : 0.84
    D : 1.5
    Q.no 47. Frequency of tool’s oscillation in USM ranges between?
    A : 5-10 kHz
    B : 10-15 kHz
    C : 18-20 kHz
    D : 25-50 kHz
    Q.no 48. Which one of the following process is worked on principle of Mechanical
    errosion
    A : AJM
    B : EDM
    C : ECM
    D : PAM
    Q.no 49. What is the general life of Tungsten carbide material nozzle in AJM?
    A : 1 – 8 hrs
    B : 2 – 5 hrs
    C : 10 – 15 hrs
    D : 25 – 40 hrs
    Q.no 50. Which one of the following is not a hybrid non-conventional machinig
    process
    A : ECDM
    B : AWJM
    C : Ultrasonic assisted EDM
    D : EBM
    Q.no 51. A shaft 1200 mm long has a taper of 1:100 for a length of 600 mm. The
    maximum diameter of the shaft to be 80 mm. Determine the minimum diameter
    of staft and amount of setover
    A : 78 mm & 22 mm
    B : 60 mm & 20 mm
    C : 65 mm & 15 mm
    D : 68 mm & 12 mm
    Q.no 52. In an orthogonal cutting if the feed is 1.25 mm/rev, the chip thickness
    after cutting is 2 mm, then the chip thickness ratio and shear angle (for rake
    angle 10 Degrees) respectively are
    A : 0.525, 36.62 Degrees
    B : 0.625, 34.62 Degrees
    C : 0.425, 36.42 Degrees
    D : 0.325, 34.62 Degrees
    Q.no 53. In a drilling operation using a twist drill, the lip angle is 120 degree
    (standard), the spindle speed is 300 rpm, the feed is 0.2 mm/rev and the drill
    diameter is 10 mm,calculate machining time to drill a hole of 30 mm long ?
    A : 0.88 min
    B : 0.54 min
    C : 1.2 min
    D : 3 min
    Q.no 54. A mild steel material is being turn for 50 mm length with a feed rate of
    0.15 mm/rev and spindle speed of 1400 rpm. The time required to cut the material
    in miniutes is
    A : 0.13
    B : 0.23
    C : 0.33
    D : 0.43
    Q.no 55. In orthogonal cutting feed is 0.2 mm/rev, Chip thickness is 0.3 mm, Rake
    angle is 15 degrees. Then the shear plane angle in degrees is
    A : 27.9
    B : 17.9
    C : 37.9
    D : 47.9
    Q.no 56. Time required for one complete cut on the piece of work 350 mm long
    and 50 mm in diameter. the cutting speed is 35 m/min and feed is 0.5 mm/rev.
    A : 2.1 Min
    B : 3.1 Min
    C : 3.5 Min
    D : 3.6 Min
    Q.no 57. In the Taylor’s tool life equation, VT^n = C, the value of n=0.5. The tool life
    has a life of 180 minutes at a cutting speed of 18 m/min. If the tool life is reduced
    to 45 minutes, then the cutting speed will be
    A : 9 m/min
    B : 18 m/min
    C : 36 m/min
    D : 72 m/min
    Q.no 58. Using the Taylor equation VT^n=c, calculate the percentage increase in
    tool life when the cutting speed is reduced is reduced by 50% (n=0.5 and c=400)
    A : 300%
    B : 400%
    C : 100%
    D : 200%
    Q.no 59. In face milling,What is the cutting speed when main axis spindle speed is
    350 rpm and the cutter diameter is 125 mm ?
    A : 137.4 m/min
    B : 142 m/min
    C : 150.2 m/min
    D : 130 m/min
    Q.no 60. The time required for machining a workpiece 50 mm dianeter 350 mm
    length, turn all over in four passes. The approach length is 12 mm, Overtravel
    10mm, the feed = 0.5 mm/rev, and cutting speed is 35m/min.
    A : 13.016 min
    B : 10.016 min
    C : 11.016 min
    D : 12.016 min
    Q.no 1. A grinding ratio of 200 implies that the
    A : Grinding wheel wears 200 times the
    volume of the material removed
    B : grinding wheel wears 0.005 times
    the volume of the material removed
    C : aspect ratio of abrasive
    particles used in the
    grinding wheel is 200
    D : ratio of volume
    of abrasive particle
    to that of grinding
    wheel is 200
    Q.no 2. The hardness of a grinding wheel is determined by the
    A : Hardness of abrasive grains
    B : Ability of the bond to retain abrasives
    C : Hardness of the bond
    D : Ability of the grinding wheel to penetrate the work piece
    Q.no 3. A grinding wheel is said to be of if it holds the abrasive grains
    more securely
    A : Soft grade
    B : Medium grade
    C : Hard grade
    D : very soft grade
    Q.no 4. Which of the following process has highest rate of metal removal
    A : Electric Discharge Machining (EDM)
    B : Electro-Chemical Machining (ECM)
    C : Ultrasonic Machining (USM)
    D : Laser Beam Machining (LBM)
    Q.no 5. Which of the following range of numbers represents dense structure of
    abrasives?
    A : 0-7
    B : 8-10
    C : 10-12
    D : 12-16
    Q.no 6. In centreless grinding, workpiece centre will be
    A : Above the line joining the two
    wheel centres
    B : Below the line joining the two
    wheel centres
    C : On the line joining the two
    wheel centres
    D : At the intersection of the
    line joining the wheel
    centres with the workpiece
    Q.no 7. Which of the following process have the lowest metal removal rate?
    A : Drilling
    B : Milling
    C : Reaming
    D : Honning
    Q.no 8. When the metal is removed by erosion caused by rapidly recurring spark
    discharges between the tool and work, the process is known as
    A : Electrochemical machining
    B : Electro-discharge machining
    C : Ultrasonic machining
    D : None of these
    Q.no 9. Which of the following method is not used for holding tool in drilling
    machine?
    A : by a sleeve
    B : by four jaw chucks
    C : by a socket
    D : By tool holder
    Q.no 10. The usual value of the point angle of a drill is
    A : 70°
    B : 100°
    C : 118°
    D : 130°
    Q.no 11. Twist drills are made of
    A : High speed steel
    B : Mild Steel
    C : Stainless steel
    D : High Carbon Steel
    Q.no 12. Cast iron during machining produces
    A : Continuous chips
    B : Dis-Continuous chips
    C : Continuous chips with
    built-up-edge
    D : None of these
    Q.no 13. In centerless grinders, the regulating wheel is inclined at
    A : 0° to 8°
    B : 9° to 15°
    C : 16° to 20°
    D : 21° to 25°
    Q.no 14. Which of the following material/s cannot be used for making of nozzle in
    Abrasive jet machining?
    A : Tungsten Carbide
    B : Steel alloy
    C : Sapphire
    D : Synthetic sapphire
    Q.no 15. The operation of making a cone-shaped enlargement of the end of a hole
    is known as
    A : counter-sinking
    B : Counter-boring
    C : Treppaning
    D : Spot facing
    Q.no 16. If l=length of travel of the drill in mm, n=rpm of the drill, s= feed per
    revolution of the drill in mm. Then machining time can be given as__

    A : (ln)/s B : (ls)/n
    C : l/(n*s)
    D : (1+n)/s
    Q.no 17. Carbide tipped tools usually have
    A : Negative rake angle
    B : Positive rake angle
    C : Any rake angle
    D : No rake angle
    Q.no 18. Feed control system is responsible for which action in ECM?
    A : Giving feed to tool
    B : Electrolyte supply
    C : Power supply
    D : None of the mentioned
    Q.no 19. Which of the following come under the main components of ECM?
    A : Feed control system
    B : Work piece holding devices
    C : Electrolyte supply system
    D : All of the mentioned
    Q.no 20. A half nut is
    A : Damaged nut
    B : Nut manufactured in parts
    C : Nut with half the standard pitch
    D : Mechanism that locks the
    lathe carriage to the load
    screw for thread cutting
    Q.no 21. How is material removed in Electro discharge machining?
    A : Melt and evaporate
    B : Corrode and break
    C : Mechanical erosion takes place
    D : None of the mentioned
    Q.no 22. In __ operation, the chip thickness is minimum at the beginning of
    the
    A : conventional milling
    B : climb milling
    C : face milling
    D : end milling
    Q.no 23. For which of the following operations, broaching can be used?
    A : Threading
    B : Grinding
    C : Spline cutting
    D : Increasing the size of the
    existing hole for a certain
    length
    Q.no 24. In Electro discharge machining, materials with low melting point have
    which type of material removal rate?
    A : Very low
    B : Low
    C : Medium
    D : High
    Q.no 25. The main purpose of a boring operation, as compared to drilling, is to
    A : Drill a hole
    B : Finish the drilled hole
    C : Correct the hole
    D : Enlarge the existing hole
    Q.no 26. Tool life in turning will decrease by maximum extent if we double the….
    A : Depth of cut
    B : Feed
    C : Cutting Velocity
    D : Tool rake angle
    Q.no 27. In which process the material is removed due to the action of abrasive
    grains?
    A : Electron Beam Machining (EBM)
    B : Ultrasonic Machining (USM)
    C : Laser Beam Machining (LBM)
    D : Electrical Discharge Machining (EDM)
    Q.no 28. Which type of adjustment required for gap voltages in ECM?
    A : Continuous adjustment
    B : Discontinuous adjustment
    C : Periodic adjustment
    D : All of the mentioned
    Q.no 29. Of the following properties of nozzle, which of them does not influence
    the MRR in AJM?
    A : Size
    B : Material
    C : Outside temperature
    D : Distance from work piece
    Q.no 30. A dynamo-meter is a device used for the measurement of
    A : Chip thickness ratio
    B : Forces during metal cutting
    C : Wear of the cutting tool
    D : Deflection of the cutting tool
    Q.no 31. Grinding wheel is specified as “A 46 K 5 B 17”. Grain size of a wheel will be
    A : Coarse
    B : Medium
    C : Fine
    D : Very Fine
    Q.no 32. Which of the following is not a media of energy transfer on which the
    advanced machining processes are classified?
    A : Reactive atmosphere
    B : Electrons
    C : Electrolyte
    D : Chemical ablation
    Q.no 33. In AJM, surface roughness value will vary between which values?
    A : 0.01 – 0.10 μm
    B : 0.15 – 1.5 μm
    C : 2.0 – 5.0 μm
    D : 7.0 – 10.0 μm
    Q.no 34. Which of the following specified grinding wheel will have Aluminum
    oxide abrasive?
    A : Z 46 K 5 B 17
    B : C 600 K 5 B 17
    C : C 8 K 5 B 17
    D : A 80 K 5 B 17
    Q.no 35. Which of the following specified grinding wheel will have Silicon carbide
    abrasive?
    A : Z 46 K 5 B 17
    B : C 600 K 5 B 17
    C : A 8 K 5 B 17
    D : A 80 K 5 B 17
    Q.no 36. The swing diameter over the bed is………the height of the center
    measured from the bed of the lathe
    A : Equal to
    B : Twice
    C : Thrice
    D : One -half
    Q.no 37. The useful life of a HSS tool machining mild steel at18 m/min is 3 hr.
    Calculate the tool life when the tool operate at 24 m/min.
    A : 12 min
    B : 18 min
    C : 20 min
    D : 24 min
    Q.no 38. At high cutting speed, high temperature at tool-chip interface is caused
    by
  97. Heat generation rate increases with an increase in cutting speed
  98. Friction coefficient (μ) decreases with an increase in cutting speed
  99. The time required to transfer the heat decreases with an increase in cutting
    speed
  100. Localization of heat takes place with an increase in cutting speed
    A : 1,3 &4
    B : 1,2,3 &4
    C : 1,2,& 3
    D : 2,3 &4
    Q.no 39. Amplitude of oscillation of tool in USM ranges between?
    A : 0.1-10 μm
    B : 10-40 μm
    C : 50-100 μm
    D : 100-1000 μm
    Q.no 40. Which one of the following process is worked on principle of Mechanical
    errosion
    A : AJM
    B : EDM
    C : ECM
    D : PAM
    Q.no 41. If n=number of divisions required, then find the number of holes to be
    moved in direct indexing
    A : 12/n
    B : 24/n
    C : 40/n
    D : 120/n
    Q.no 42. What is the value of abrasive grain flow rate in Abrasive jet machining?
    A : 0.1 – 2 g/min
    B : 3 – 20 g/min
    C : 30 – 56 g/min
    D : 68 – 85 g/min
    Q.no 43. In an orthogonal cutting the depth of cut is halved and the feed is double.
    If the chip thickness ratio is unaffected with the changed cutting conditions the
    actual chip thickness will be
    A : Doubled
    B : Halved
    C : Quadrupled
    D : unchanged
    Q.no 44. What is the general life of Tungsten carbide material nozzle in AJM?
    A : 1 – 8 hrs
    B : 2 – 5 hrs
    C : 10 – 15 hrs
    D : 25 – 40 hrs
    Q.no 45. Find the angle at which the compound rest should be set up to turn taper
    on the workpiece having a length of 20mm, larger diameter 45mm and the
    smaller diameter 30mm.
    A : 2 Degree 9 Minutes
    B : 3 Degree 9 Minutes
    C : 4 Degree 9 Minutes
    D : 5 Degree 9 Minutes
    Q.no 46. Which one of the following process is worked on principle of electrolysis
    using eletrolyte
    A : EDM
    B : USM
    C : AJM
    D : ECM
    Q.no 47. Which one of the following is not a hybrid non-conventional machinig
    process
    A : ECDM
    B : AWJM
    C : Ultrasonic assisted EDM
    D : EBM
    Q.no 48. Which one of the following is a hybrid non-conventional machinig
    process
    A : ECM
    B : EDM
    C : AWJM
    D : LBM
    Q.no 49. It is desired to perform the operations like drilling, reaming, counterboring etc. on a work piece. Which of the following machine will be used?
    A : Sensitive drilling machine
    B : Radial drilling machine
    C : Gang drilling machine
    D : Multiple spindle drilling
    machine
    Q.no 50. In Abrasive jet machining, what may be the size of the abrasive grains
    used?
    A : 10 – 40 μm
    B : 50 – 100 μm
    C : 100 – 150 μm
    D : 200 – 300 μm
    Q.no 51. In orthogonal cutting feed is 0.2 mm/rev, Chip thickness is 0.3 mm, Rake
    angle is 15 degrees. Then the shear plane angle in degrees is
    A : 27.9
    B : 17.9
    C : 37.9
    D : 47.9
    Q.no 52. In a drilling operation using a twist drill, the lip angle is 120 degree
    (standard), the spindle speed is 300 rpm, the feed is 0.2 mm/rev and the drill
    diameter is 10 mm,calculate machining time to drill a hole of 30 mm long ?
    A : 0.88 min
    B : 0.54 min
    C : 1.2 min
    D : 3 min
    Q.no 53. Calculate the cutting speed of drilling operation when diameter of drill is
    10 mm and rotational speed of drill is 200 r.p.m.
    A : 6.283 m/min
    B : 3.142 m/min
    C : 8.362 m/min
    D : 10.216 m/min
    Q.no 54. A shaft 1200 mm long has a taper of 1:100 for a length of 600 mm. The
    maximum diameter of the shaft to be 80 mm. Determine the minimum diameter
    of staft and amount of setover
    A : 78 mm & 22 mm
    B : 60 mm & 20 mm
    C : 65 mm & 15 mm
    D : 68 mm & 12 mm
    Q.no 55. A tapered pin is to be prepared on a lathe machine. If the larger diameter
    is 90 mm, smaller diameter is 80 mm, length of the pin is 100 mm, Find the angle
    of taper at which the compound rest to be swivelled around
    A : 3 Degrees and 51 Minutes
    B : 2 Degrees and 15 Minutes
    C : 4 Degrees and 51 Minutes
    D : 2 Degrees and 51 Minutes
    Q.no 56. In orthogonal turning of MS bar of 65 mm diameter machined on a lathe
    with a feed of 0.8 mm was used. A continuous chip of 1.4 mm thickness was
    removed at a rotational speed of 85 rpm. The Chip thickness ratio, Chip reduction
    ratio and Total length of the Chip in One Minute respectively is
    A : 0.5714, 1.75, 9918 mm
    B : 1.75, 0.5714, 9915 mm
    C : 1.75, 9999 mm, 05714,
    D : 57.14, 1.75, 9999 mm
    Q.no 57. A mild steel material is being turn for 50 mm length with a feed rate of
    0.15 mm/rev and spindle speed of 1400 rpm. The time required to cut the material
    in miniutes is
    A : 0.13
    B : 0.23
    C : 0.33
    D : 0.43
    Q.no 58. In Face Milling,What is the feed per tooth when the main axis spindle
    speed is 500 rpm, number of insert is 10, and table feed is 500mm/min
    A : 0.1 mm/tooth
    B : 0.7 mm/tooth
    C : 1 mm/tooth
    D : 7 mm/tooth
    Q.no 59. In an orthogonal cutting if the feed is 1.25 mm/rev, the chip thickness
    after cutting is 2 mm, then the chip thickness ratio and shear angle (for rake
    angle 10 Degrees) respectively are
    A : 0.525, 36.62 Degrees
    B : 0.625, 34.62 Degrees
    C : 0.425, 36.42 Degrees
    D : 0.325, 34.62 Degrees
    Q.no 60. Time required for one complete cut on the piece of work 350 mm long
    and 50 mm in diameter. the cutting speed is 35 m/min and feed is 0.5 mm/rev.
    A : 2.1 Min
    B : 3.1 Min
    C : 3.5 Min
    D : 3.6 Min
    Q.no 1. Steady rest is
    A : An additional support provided for long jobs
    B : Used while turning unsymmetrical
    objects
    C : Used during Plain cutting only
    D : Used when a lathe is
    subject to vibrations
    Q.no 2. The tool life is said to be over if
    A : Poor surface finish is obtained
    B : There is sudden increase in cutting
    forces and power consumption
    C : Overheating and fuming due to
    heat of friction starts
    D : All of the above
    Q.no 3. Which of the following symbol’s range of alphabet represent soft grain in
    grinding wheel?
    A : A – H
    B : I – P
    C : Q – T
    D : T – Z
    Q.no 4. Lapping is an operation of_________
    A : Making a cone-shaped enlargement
    of the end of a hole
    B : Smoothing and squaring the
    surface around a hole
    C : Sizing and finishing a
    small diameter hole
    D : Producing a hole by
    removing metal along
    the circumference of
    a hollow cutting tool
    Q.no 5. In a milling operation, two side milling cutters are mounted with a desired
    distance between them so that both sides of a workpiece can be milled
    simultaneously. This set up is called
    A : Gang milling
    B : Straddle milling
    C : Face milling
    D : Side milling
    Q.no 6. In Abrasive jet machining, work piece material of removed by which of
    the following means?
    A : Vaporization
    B : Electro plating
    C : Mechanical abrasion
    D : Corrosion
    Q.no 7. The operation of producing grooves around the periphery of a cylindrical
    or conical workpiece is called
    A : profile milling
    B : Gang milling
    C : Saw milling
    D : Helical milling
    Q.no 8. Burnishing is a process of
    A : Cold working
    B : Hot working
    C : Press working
    D : Metal Cutting
    Q.no 9. Grinding wheel Tool signature consists of _ elements
    A : 4
    B : 5
    C : 6
    D : 7
    Q.no 10. The hardness of a grinding wheel is determined by the
    A : Hardness of abrasive grains
    B : Ability of the bond to retain abrasives
    C : Hardness of the bond
    D : Ability of the grinding wheel to penetrate the work piece
    Q.no 11. Use of tail stock in cylindrical grinding machine is
    A : To drive the work piece
    B : To give feed to the wheel head
    C : To provide Speed to
    grinding wheel
    D : To support the
    other end of the
    work piece
    Q.no 12. Which of the following range of numbers represents dense structure of
    abrasives?
    A : 0-7
    B : 8-10
    C : 10-12
    D : 12-16
    Q.no 13. Removing dull grains in order to make grinding wheel sharp is known as
    A : Loading
    B : Glazing
    C : Dressing
    D : Trueing
    Q.no 14. Which of the following is a not a surface finishing process?
    A : Honing
    B : Buffing
    C : Lapping
    D : Turning
    Q.no 15. A coarse grained grinding wheel is used to grind
    A : Soft and Hard materials
    B : Soft and ductile materials
    C : Hard Material
    D : Tough Material
    Q.no 16. In oblique cutting of metals, the cutting edge of the tools is.
    A : Perpendicular to the workpiece
    B : Perpendicular to the direction of
    tool travel
    C : Parallel to the direction of
    tool travel
    D : Inclined at an angle less
    than 90 to the direction of tool travel
    Q.no 17. Which of the following process has highest rate of metal removal
    A : Electric Discharge Machining (EDM)
    B : Electro-Chemical Machining (ECM)
    C : Ultrasonic Machining (USM)
    D : Laser Beam Machining (LBM)
    Q.no 18. Shear angle varies with
    A : Cutting speed
    B : Feed
    C : Depth of cut
    D : Work piece materials and
    tool geometry
    Q.no 19. A grinding ratio of 200 implies that the
    A : Grinding wheel wears 200 times the
    volume of the material removed
    B : grinding wheel wears 0.005 times
    the volume of the material removed
    C : aspect ratio of abrasive
    particles used in the
    grinding wheel is 200
    D : ratio of volume
    of abrasive particle
    to that of grinding
    wheel is 200
    Q.no 20. Which of the following processes is generally applied for dentistry work
    like to drill fine holes of particular shape in teeth?
    A : Electrical Discharge Machining (EDM)
    B : Electron Beam Machining (EBM)
    C : Laser Beam Machining (LBM)
    D : Ultrasonic Machining (USM)
    Q.no 21. As the abrasive flow rate increases, what happens to the volumetric
    removal rate in AJM?
    A : Increases
    B : Decreases
    C : Increase and then decrease
    D : Decrease and then increase
    Q.no 22. A grinding wheel is said to be of
    if it holds the abrasive grains
    more securely
    A : Soft grade
    B : Medium grade
    C : Hard grade
    D : very soft grade
    Q.no 23. The angle between the face and flank of the single point cutting tool is
    known as
    A : Rake angle
    B : Clearance angle
    C : Lip angle
    D : Point angle
    Q.no 24. In centreless grinding, workpiece centre will be
    A : Above the line joining the two
    wheel centres
    B : Below the line joining the two
    wheel centres
    C : On the line joining the two
    wheel centres
    D : At the intersection of the
    line joining the wheel
    centres with the workpiece
    Q.no 25. Discontinuous chips are formed during machine of
    A : Brittle metals
    B : Ductile metals
    C : Soft metals
    D : Tough metals
    Q.no 26. If a cutting tool is designed as 8°-14°-6°-8°-8°-19°-1mm what is the side
    Rake angle of the tool
    A : 14°
    B : 19°
    C : 6°
    D : 8°
    Q.no 27. A dynamo-meter is a device used for the measurement of
    A : Chip thickness ratio
    B : Forces during metal cutting
    C : Wear of the cutting tool
    D : Deflection of the cutting tool
    Q.no 28. In Electro discharge machining, materials with low melting point have
    which type of material removal rate?
    A : Very low
    B : Low
    C : Medium
    D : High
    Q.no 29. In which process the material is removed due to the action of abrasive
    grains?
    A : Electron Beam Machining (EBM)
    B : Ultrasonic Machining (USM)
    C : Laser Beam Machining (LBM)
    D : Electrical Discharge Machining (EDM)
    Q.no 30. Twist drills are made of
    A : High speed steel
    B : Mild Steel
    C : Stainless steel
    D : High Carbon Steel
    Q.no 31. Which of the following is not a media of energy transfer on which the
    advanced machining processes are classified?
    A : Reactive atmosphere
    B : Electrons
    C : Electrolyte
    D : Chemical ablation
    Q.no 32. Frequency of tool’s oscillation in USM ranges between?
    A : 5-10 kHz
    B : 10-15 kHz
    C : 18-20 kHz
    D : 25-50 kHz
    Q.no 33. Which of the following specified grinding wheel will have Silicon carbide
    abrasive?
    A : Z 46 K 5 B 17
    B : C 600 K 5 B 17
    C : A 8 K 5 B 17
    D : A 80 K 5 B 17
    Q.no 34. Grinding wheel is specified as “A 46 K 5 B 17”. Grain size of a wheel will be
    A : Coarse
    B : Medium
    C : Fine
    D : Very Fine
    Q.no 35. In AJM, surface roughness value will vary between which values?
    A : 0.01 – 0.10 μm
    B : 0.15 – 1.5 μm
    C : 2.0 – 5.0 μm
    D : 7.0 – 10.0 μm
    Q.no 36. In machining operation, Uncut chip thickness t0= 0.8 mm and Chip
    thickness tc=1.2 mm. The correct option for the chip thickness ratio (r) is
    A : 0.4
    B : 0.66
    C : 0.84
    D : 1.5
    Q.no 37. The tail stock set over required to turn a taper on the entire length of a
    workpiece having diameters D and d is
    A : D-d / (2L)
    B : D-d /(L)
    C : D-d /(2)
    D : D-d
    Q.no 38. Which of the following specified grinding wheel will have Aluminum
    oxide abrasive?
    A : Z 46 K 5 B 17
    B : C 600 K 5 B 17
    C : C 8 K 5 B 17
    D : A 80 K 5 B 17
    Q.no 39. Which one of the following process is worked on principle of Mechanical
    errosion
    A : AJM
    B : EDM
    C : ECM
    D : PAM
    Q.no 40. Which one of the following is not a hybrid non-conventional machinig
    process
    A : ECDM
    B : AWJM
    C : Ultrasonic assisted EDM
    D : EBM
    Q.no 41. At high cutting speed, high temperature at tool-chip interface is caused
    by
  101. Heat generation rate increases with an increase in cutting speed
  102. Friction coefficient (μ) decreases with an increase in cutting speed
  103. The time required to transfer the heat decreases with an increase in cutting
    speed
  104. Localization of heat takes place with an increase in cutting speed
    A : 1,3 &4
    B : 1,2,3 &4
    C : 1,2,& 3
    D : 2,3 &4
    Q.no 42. If n=number of divisions required, then find the number of holes to be
    moved in direct indexing
    A : 12/n
    B : 24/n
    C : 40/n
    D : 120/n
    Q.no 43. Find the angle at which the compound rest should be set up to turn taper
    on the workpiece having a length of 20mm, larger diameter 45mm and the
    smaller diameter 30mm.
    A : 2 Degree 9 Minutes
    B : 3 Degree 9 Minutes
    C : 4 Degree 9 Minutes
    D : 5 Degree 9 Minutes
    Q.no 44. The swing diameter over the bed is………the height of the center
    measured from the bed of the lathe
    A : Equal to
    B : Twice
    C : Thrice
    D : One -half
    Q.no 45. What is the general life of Tungsten carbide material nozzle in AJM?
    A : 1 – 8 hrs
    B : 2 – 5 hrs
    C : 10 – 15 hrs
    D : 25 – 40 hrs
    Q.no 46. Which one of the following is a hybrid non-conventional machinig
    process
    A : ECM
    B : EDM
    C : AWJM
    D : LBM
    Q.no 47. Which one of the following process is worked on principle of electrolysis
    using eletrolyte
    A : EDM
    B : USM
    C : AJM
    D : ECM
    Q.no 48. In an orthogonal cutting the depth of cut is halved and the feed is double.
    If the chip thickness ratio is unaffected with the changed cutting conditions the
    actual chip thickness will be
    A : Doubled
    B : Halved
    C : Quadrupled
    D : unchanged
    Q.no 49. In Abrasive jet machining, what may be the size of the abrasive grains
    used?
    A : 10 – 40 μm
    B : 50 – 100 μm
    C : 100 – 150 μm
    D : 200 – 300 μm
    Q.no 50. Amplitude of oscillation of tool in USM ranges between?
    A : 0.1-10 μm
    B : 10-40 μm
    C : 50-100 μm
    D : 100-1000 μm
    Q.no 51. The time required for machining a workpiece 50 mm dianeter 350 mm
    length, turn all over in four passes. The approach length is 12 mm, Overtravel
    10mm, the feed = 0.5 mm/rev, and cutting speed is 35m/min.
    A : 13.016 min
    B : 10.016 min
    C : 11.016 min
    D : 12.016 min
    Q.no 52. Using the Taylor equation VT^n=c, calculate the percentage increase in
    tool life when the cutting speed is reduced is reduced by 50% (n=0.5 and c=400)
    A : 300%
    B : 400%
    C : 100%
    D : 200%
    Q.no 53. In face milling,What is the cutting speed when main axis spindle speed is
    350 rpm and the cutter diameter is 125 mm ?
    A : 137.4 m/min
    B : 142 m/min
    C : 150.2 m/min
    D : 130 m/min
    Q.no 54. In the Taylor’s tool life equation, VT^n = C, the value of n=0.5. The tool life
    has a life of 180 minutes at a cutting speed of 18 m/min. If the tool life is reduced
    to 45 minutes, then the cutting speed will be
    A : 9 m/min
    B : 18 m/min
    C : 36 m/min
    D : 72 m/min
    Q.no 55. In orthogonal cutting feed is 0.2 mm/rev, Chip thickness is 0.3 mm, Rake
    angle is 15 degrees. Then the shear plane angle in degrees is
    A : 27.9
    B : 17.9
    C : 37.9
    D : 47.9
    Q.no 56. In an orthogonal cutting if the feed is 1.25 mm/rev, the chip thickness
    after cutting is 2 mm, then the chip thickness ratio and shear angle (for rake
    angle 10 Degrees) respectively are
    A : 0.525, 36.62 Degrees
    B : 0.625, 34.62 Degrees
    C : 0.425, 36.42 Degrees
    D : 0.325, 34.62 Degrees
    Q.no 57. Time required for one complete cut on the piece of work 350 mm long
    and 50 mm in diameter. the cutting speed is 35 m/min and feed is 0.5 mm/rev.
    A : 2.1 Min
    B : 3.1 Min
    C : 3.5 Min
    D : 3.6 Min
    Q.no 58. In Face Milling,What is the feed per tooth when the main axis spindle
    speed is 500 rpm, number of insert is 10, and table feed is 500mm/min
    A : 0.1 mm/tooth
    B : 0.7 mm/tooth
    C : 1 mm/tooth
    D : 7 mm/tooth
    Q.no 59. In orthogonal turning of MS bar of 65 mm diameter machined on a lathe
    with a feed of 0.8 mm was used. A continuous chip of 1.4 mm thickness was
    removed at a rotational speed of 85 rpm. The Chip thickness ratio, Chip reduction
    ratio and Total length of the Chip in One Minute respectively is
    A : 0.5714, 1.75, 9918 mm
    B : 1.75, 0.5714, 9915 mm
    C : 1.75, 9999 mm, 05714,
    D : 57.14, 1.75, 9999 mm
    Q.no 60. Calculate the cutting speed of drilling operation when diameter of drill is
    10 mm and rotational speed of drill is 200 r.p.m.
    A : 6.283 m/min
    B : 3.142 m/min
    C : 8.362 m/min
    D : 10.216 m/min
    Q.no 1. The usual value of the point angle of a drill is
    A : 70°
    B : 100°
    C : 118°
    D : 130°
    Q.no 2. In centerless grinders, the regulating wheel is inclined at
    A : 0° to 8°
    B : 9° to 15°
    C : 16° to 20°
    D : 21° to 25°
    Q.no 3. In _ operation, the chip thickness is minimum at the beginning of
    the
    A : conventional milling
    B : climb milling
    C : face milling
    D : end milling
    Q.no 4. Feed control system is responsible for which action in ECM?
    A : Giving feed to tool
    B : Electrolyte supply
    C : Power supply
    D : None of the mentioned
    Q.no 5. A half nut is
    A : Damaged nut
    B : Nut manufactured in parts
    C : Nut with half the standard pitch
    D : Mechanism that locks the
    lathe carriage to the load
    screw for thread cutting
    Q.no 6. For which of the following operations, broaching can be used?
    A : Threading
    B : Grinding
    C : Spline cutting
    D : Increasing the size of the
    existing hole for a certain
    length
    Q.no 7. When the metal is removed by erosion caused by rapidly recurring spark
    discharges between the tool and work, the process is known as
    A : Electrochemical machining
    B : Electro-discharge machining
    C : Ultrasonic machining
    D : None of these
    Q.no 8. The main purpose of a boring operation, as compared to drilling, is to
    A : Drill a hole
    B : Finish the drilled hole
    C : Correct the hole
    D : Enlarge the existing hole
    Q.no 9. Which of the following material/s cannot be used for making of nozzle in
    Abrasive jet machining?
    A : Tungsten Carbide
    B : Steel alloy
    C : Sapphire
    D : Synthetic sapphire
    Q.no 10. Which of the following method is not used for holding tool in drilling
    machine?
    A : by a sleeve
    B : by four jaw chucks
    C : by a socket
    D : By tool holder
    Q.no 11. Carbide tipped tools usually have
    A : Negative rake angle
    B : Positive rake angle
    C : Any rake angle
    D : No rake angle
    Q.no 12. Which of the following process have the lowest metal removal rate?
    A : Drilling
    B : Milling
    C : Reaming
    D : Honning
    Q.no 13. Tool life in turning will decrease by maximum extent if we double the….
    A : Depth of cut
    B : Feed
    C : Cutting Velocity
    D : Tool rake angle
    Q.no 14. Which type of adjustment required for gap voltages in ECM?
    A : Continuous adjustment
    B : Discontinuous adjustment
    C : Periodic adjustment
    D : All of the mentioned
    Q.no 15. How is material removed in Electro discharge machining?
    A : Melt and evaporate
    B : Corrode and break
    C : Mechanical erosion takes place
    D : None of the mentioned
    Q.no 16. Cast iron during machining produces
    A : Continuous chips
    B : Dis-Continuous chips
    C : Continuous chips with
    built-up-edge
    D : None of these
    Q.no 17. If l=length of travel of the drill in mm, n=rpm of the drill, s= feed per
    revolution of the drill in mm. Then machining time can be given as__

    A : (ln)/s B : (ls)/n
    C : l/(n*s)
    D : (1+n)/s
    Q.no 18. Of the following properties of nozzle, which of them does not influence
    the MRR in AJM?
    A : Size
    B : Material
    C : Outside temperature
    D : Distance from work piece
    Q.no 19. The operation of making a cone-shaped enlargement of the end of a hole
    is known as
    A : counter-sinking
    B : Counter-boring
    C : Treppaning
    D : Spot facing
    Q.no 20. Which of the following come under the main components of ECM?
    A : Feed control system
    B : Work piece holding devices
    C : Electrolyte supply system
    D : All of the mentioned
    Q.no 21. The operation of producing grooves around the periphery of a cylindrical
    or conical workpiece is called
    A : profile milling
    B : Gang milling
    C : Saw milling
    D : Helical milling
    Q.no 22. Use of tail stock in cylindrical grinding machine is
    A : To drive the work piece
    B : To give feed to the wheel head
    C : To provide Speed to
    grinding wheel
    D : To support the
    other end of the
    work piece
    Q.no 23. In a milling operation, two side milling cutters are mounted with a
    desired distance between them so that both sides of a workpiece can be milled
    simultaneously. This set up is called
    A : Gang milling
    B : Straddle milling
    C : Face milling
    D : Side milling
    Q.no 24. Lapping is an operation of_________
    A : Making a cone-shaped enlargement
    of the end of a hole
    B : Smoothing and squaring the
    surface around a hole
    C : Sizing and finishing a
    small diameter hole
    D : Producing a hole by
    removing metal along
    the circumference of
    a hollow cutting tool
    Q.no 25. Which of the following symbol’s range of alphabet represent soft grain in
    grinding wheel?
    A : A – H
    B : I – P
    C : Q – T
    D : T – Z
    Q.no 26. Twist drills are made of
    A : High speed steel
    B : Mild Steel
    C : Stainless steel
    D : High Carbon Steel
    Q.no 27. Burnishing is a process of
    A : Cold working
    B : Hot working
    C : Press working
    D : Metal Cutting
    Q.no 28. A grinding ratio of 200 implies that the
    A : Grinding wheel wears 200 times the
    volume of the material removed
    B : grinding wheel wears 0.005 times
    the volume of the material removed
    C : aspect ratio of abrasive
    particles used in the
    grinding wheel is 200
    D : ratio of volume
    of abrasive particle
    to that of grinding
    wheel is 200
    Q.no 29. Which of the following processes is generally applied for dentistry work
    like to drill fine holes of particular shape in teeth?
    A : Electrical Discharge Machining (EDM)
    B : Electron Beam Machining (EBM)
    C : Laser Beam Machining (LBM)
    D : Ultrasonic Machining (USM)
    Q.no 30. The hardness of a grinding wheel is determined by the
    A : Hardness of abrasive grains
    B : Ability of the bond to retain abrasives
    C : Hardness of the bond
    D : Ability of the grinding wheel to penetrate the work piece
    Q.no 31. Which of the following is not a media of energy transfer on which the
    advanced machining processes are classified?
    A : Reactive atmosphere
    B : Electrons
    C : Electrolyte
    D : Chemical ablation
    Q.no 32. The useful life of a HSS tool machining mild steel at18 m/min is 3 hr.
    Calculate the tool life when the tool operate at 24 m/min.
    A : 12 min
    B : 18 min
    C : 20 min
    D : 24 min
    Q.no 33. In AJM, surface roughness value will vary between which values?
    A : 0.01 – 0.10 μm
    B : 0.15 – 1.5 μm
    C : 2.0 – 5.0 μm
    D : 7.0 – 10.0 μm
    Q.no 34. In machining operation, Uncut chip thickness t0= 0.8 mm and Chip
    thickness tc=1.2 mm. The correct option for the chip thickness ratio (r) is
    A : 0.4
    B : 0.66
    C : 0.84
    D : 1.5
    Q.no 35. Frequency of tool’s oscillation in USM ranges between?
    A : 5-10 kHz
    B : 10-15 kHz
    C : 18-20 kHz
    D : 25-50 kHz
    Q.no 36. Which of the following specified grinding wheel will have Silicon carbide
    abrasive?
    A : Z 46 K 5 B 17
    B : C 600 K 5 B 17
    C : A 8 K 5 B 17
    D : A 80 K 5 B 17
    Q.no 37. What is the value of abrasive grain flow rate in Abrasive jet machining?
    A : 0.1 – 2 g/min
    B : 3 – 20 g/min
    C : 30 – 56 g/min
    D : 68 – 85 g/min
    Q.no 38. Grinding wheel is specified as “A 46 K 5 B 17”. Grain size of a wheel will be
    A : Coarse
    B : Medium
    C : Fine
    D : Very Fine
    Q.no 39. It is desired to perform the operations like drilling, reaming, counterboring etc. on a work piece. Which of the following machine will be used?
    A : Sensitive drilling machine
    B : Radial drilling machine
    C : Gang drilling machine
    D : Multiple spindle drilling
    machine
    Q.no 40. Which of the following specified grinding wheel will have Aluminum
    oxide abrasive?
    A : Z 46 K 5 B 17
    B : C 600 K 5 B 17
    C : C 8 K 5 B 17
    D : A 80 K 5 B 17
    Q.no 41. Which one of the following is a hybrid non-conventional machinig
    process
    A : ECM
    B : EDM
    C : AWJM
    D : LBM
    Q.no 42. Find the angle at which the compound rest should be set up to turn taper
    on the workpiece having a length of 20mm, larger diameter 45mm and the
    smaller diameter 30mm.
    A : 2 Degree 9 Minutes
    B : 3 Degree 9 Minutes
    C : 4 Degree 9 Minutes
    D : 5 Degree 9 Minutes
    Q.no 43. In an orthogonal cutting the depth of cut is halved and the feed is double.
    If the chip thickness ratio is unaffected with the changed cutting conditions the
    actual chip thickness will be
    A : Doubled
    B : Halved
    C : Quadrupled
    D : unchanged
    Q.no 44. The tail stock set over required to turn a taper on the entire length of a
    workpiece having diameters D and d is
    A : D-d / (2L)
    B : D-d /(L)
    C : D-d /(2)
    D : D-d
    Q.no 45. Amplitude of oscillation of tool in USM ranges between?
    A : 0.1-10 μm
    B : 10-40 μm
    C : 50-100 μm
    D : 100-1000 μm
    Q.no 46. Which one of the following process is worked on principle of electrolysis
    using eletrolyte
    A : EDM
    B : USM
    C : AJM
    D : ECM
    Q.no 47. In Abrasive jet machining, what may be the size of the abrasive grains
    used?
    A : 10 – 40 μm
    B : 50 – 100 μm
    C : 100 – 150 μm
    D : 200 – 300 μm
    Q.no 48. The swing diameter over the bed is………the height of the center
    measured from the bed of the lathe
    A : Equal to
    B : Twice
    C : Thrice
    D : One -half
    Q.no 49. What is the general life of Tungsten carbide material nozzle in AJM?
    A : 1 – 8 hrs
    B : 2 – 5 hrs
    C : 10 – 15 hrs
    D : 25 – 40 hrs
    Q.no 50. Which one of the following process is worked on principle of Mechanical
    errosion
    A : AJM
    B : EDM
    C : ECM
    D : PAM
    Q.no 51. The time required for machining a workpiece 50 mm dianeter 350 mm
    length, turn all over in four passes. The approach length is 12 mm, Overtravel
    10mm, the feed = 0.5 mm/rev, and cutting speed is 35m/min.
    A : 13.016 min
    B : 10.016 min
    C : 11.016 min
    D : 12.016 min
    Q.no 52. A tapered pin is to be prepared on a lathe machine. If the larger diameter
    is 90 mm, smaller diameter is 80 mm, length of the pin is 100 mm, Find the angle
    of taper at which the compound rest to be swivelled around
    A : 3 Degrees and 51 Minutes
    B : 2 Degrees and 15 Minutes
    C : 4 Degrees and 51 Minutes
    D : 2 Degrees and 51 Minutes
    Q.no 53. A shaft 1200 mm long has a taper of 1:100 for a length of 600 mm. The
    maximum diameter of the shaft to be 80 mm. Determine the minimum diameter
    of staft and amount of setover
    A : 78 mm & 22 mm
    B : 60 mm & 20 mm
    C : 65 mm & 15 mm
    D : 68 mm & 12 mm
    Q.no 54. Using the Taylor equation VT^n=c, calculate the percentage increase in
    tool life when the cutting speed is reduced is reduced by 50% (n=0.5 and c=400)
    A : 300%
    B : 400%
    C : 100%
    D : 200%
    Q.no 55. A mild steel material is being turn for 50 mm length with a feed rate of
    0.15 mm/rev and spindle speed of 1400 rpm. The time required to cut the material
    in miniutes is
    A : 0.13
    B : 0.23
    C : 0.33
    D : 0.43
    Q.no 56. In a drilling operation using a twist drill, the lip angle is 120 degree
    (standard), the spindle speed is 300 rpm, the feed is 0.2 mm/rev and the drill
    diameter is 10 mm,calculate machining time to drill a hole of 30 mm long ?
    A : 0.88 min
    B : 0.54 min
    C : 1.2 min
    D : 3 min
    Q.no 57. In face milling,What is the cutting speed when main axis spindle speed is
    350 rpm and the cutter diameter is 125 mm ?
    A : 137.4 m/min
    B : 142 m/min
    C : 150.2 m/min
    D : 130 m/min
    Q.no 58. Time required for one complete cut on the piece of work 350 mm long
    and 50 mm in diameter. the cutting speed is 35 m/min and feed is 0.5 mm/rev.
    A : 2.1 Min
    B : 3.1 Min
    C : 3.5 Min
    D : 3.6 Min
    Q.no 59. In orthogonal cutting feed is 0.2 mm/rev, Chip thickness is 0.3 mm, Rake
    angle is 15 degrees. Then the shear plane angle in degrees is
    A : 27.9
    B : 17.9
    C : 37.9
    D : 47.9
    Q.no 60. Calculate the cutting speed of drilling operation when diameter of drill is
    10 mm and rotational speed of drill is 200 r.p.m.
    A : 6.283 m/min
    B : 3.142 m/min
    C : 8.362 m/min
    D : 10.216 m/min
    Q.no 1. In which process the material is removed due to the action of abrasive
    grains?
    A : Electron Beam Machining (EBM)
    B : Ultrasonic Machining (USM)
    C : Laser Beam Machining (LBM)
    D : Electrical Discharge Machining (EDM)
    Q.no 2. Which of the following is a not a surface finishing process?
    A : Honing
    B : Buffing
    C : Lapping
    D : Turning
    Q.no 3. In Electro discharge machining, materials with low melting point have
    which type of material removal rate?
    A : Very low
    B : Low
    C : Medium
    D : High
    Q.no 4. Discontinuous chips are formed during machine of
    A : Brittle metals
    B : Ductile metals
    C : Soft metals
    D : Tough metals
    Q.no 5. Shear angle varies with
    A : Cutting speed
    B : Feed
    C : Depth of cut
    D : Work piece materials and
    tool geometry
    Q.no 6. In centerless grinders, the regulating wheel is inclined at
    A : 0° to 8°
    B : 9° to 15°
    C : 16° to 20°
    D : 21° to 25°
    Q.no 7. For which of the following operations, broaching can be used?
    A : Threading
    B : Grinding
    C : Spline cutting
    D : Increasing the size of the
    existing hole for a certain
    length
    Q.no 8. A half nut is
    A : Damaged nut
    B : Nut manufactured in parts
    C : Nut with half the standard pitch
    D : Mechanism that locks the
    lathe carriage to the load
    screw for thread cutting
    Q.no 9. In Abrasive jet machining, work piece material of removed by which of
    the following means?
    A : Vaporization
    B : Electro plating
    C : Mechanical abrasion
    D : Corrosion
    Q.no 10. As the abrasive flow rate increases, what happens to the volumetric
    removal rate in AJM?
    A : Increases
    B : Decreases
    C : Increase and then decrease
    D : Decrease and then increase
    Q.no 11. A grinding wheel is said to be of if it holds the abrasive grains
    more securely
    A : Soft grade
    B : Medium grade
    C : Hard grade
    D : very soft grade
    Q.no 12. The angle between the face and flank of the single point cutting tool is
    known as
    A : Rake angle
    B : Clearance angle
    C : Lip angle
    D : Point angle
    Q.no 13. The tool life is said to be over if
    A : Poor surface finish is obtained
    B : There is sudden increase in cutting
    forces and power consumption
    C : Overheating and fuming due to
    heat of friction starts
    D : All of the above
    Q.no 14. Which of the following process has highest rate of metal removal
    A : Electric Discharge Machining (EDM)
    B : Electro-Chemical Machining (ECM)
    C : Ultrasonic Machining (USM)
    D : Laser Beam Machining (LBM)
    Q.no 15. In oblique cutting of metals, the cutting edge of the tools is.
    A : Perpendicular to the workpiece
    B : Perpendicular to the direction of
    tool travel
    C : Parallel to the direction of
    tool travel
    D : Inclined at an angle less
    than 90 to the direction of tool travel
    Q.no 16. Which of the following range of numbers represents dense structure of
    abrasives?
    A : 0-7
    B : 8-10
    C : 10-12
    D : 12-16
    Q.no 17. Feed control system is responsible for which action in ECM?
    A : Giving feed to tool
    B : Electrolyte supply
    C : Power supply
    D : None of the mentioned
    Q.no 18. A dynamo-meter is a device used for the measurement of
    A : Chip thickness ratio
    B : Forces during metal cutting
    C : Wear of the cutting tool
    D : Deflection of the cutting tool
    Q.no 19. In centreless grinding, workpiece centre will be
    A : Above the line joining the two
    wheel centres
    B : Below the line joining the two
    wheel centres
    C : On the line joining the two
    wheel centres
    D : At the intersection of the
    line joining the wheel
    centres with the workpiece
    Q.no 20. Steady rest is
    A : An additional support provided for long jobs
    B : Used while turning unsymmetrical
    objects
    C : Used during Plain cutting only
    D : Used when a lathe is
    subject to vibrations
    Q.no 21. In _
    operation, the chip thickness is minimum at the beginning of
    the
    A : conventional milling
    B : climb milling
    C : face milling
    D : end milling
    Q.no 22. The usual value of the point angle of a drill is
    A : 70°
    B : 100°
    C : 118°
    D : 130°
    Q.no 23. If a cutting tool is designed as 8°-14°-6°-8°-8°-19°-1mm what is the side
    Rake angle of the tool
    A : 14°
    B : 19°
    C : 6°
    D : 8°
    Q.no 24. A coarse grained grinding wheel is used to grind
    A : Soft and Hard materials
    B : Soft and ductile materials
    C : Hard Material
    D : Tough Material
    Q.no 25. Removing dull grains in order to make grinding wheel sharp is known as
    A : Loading
    B : Glazing
    C : Dressing
    D : Trueing
    Q.no 26. Grinding wheel Tool signature consists of _ elements
    A : 4
    B : 5
    C : 6
    D : 7
    Q.no 27. Which of the following processes is generally applied for dentistry work
    like to drill fine holes of particular shape in teeth?
    A : Electrical Discharge Machining (EDM)
    B : Electron Beam Machining (EBM)
    C : Laser Beam Machining (LBM)
    D : Ultrasonic Machining (USM)
    Q.no 28. Lapping is an operation of______

    A : Making a cone-shaped enlargement
    of the end of a hole
    B : Smoothing and squaring the
    surface around a hole
    C : Sizing and finishing a
    small diameter hole
    D : Producing a hole by
    removing metal along
    the circumference of
    a hollow cutting tool
    Q.no 29. The main purpose of a boring operation, as compared to drilling, is to
    A : Drill a hole
    B : Finish the drilled hole
    C : Correct the hole
    D : Enlarge the existing hole
    Q.no 30. When the metal is removed by erosion caused by rapidly recurring spark
    discharges between the tool and work, the process is known as
    A : Electrochemical machining
    B : Electro-discharge machining
    C : Ultrasonic machining
    D : None of these
    Q.no 31. Which one of the following is not a hybrid non-conventional machinig
    process
    A : ECDM
    B : AWJM
    C : Ultrasonic assisted EDM
    D : EBM
    Q.no 32. Grinding wheel is specified as “A 46 K 5 B 17”. Grain size of a wheel will be
    A : Coarse
    B : Medium
    C : Fine
    D : Very Fine
    Q.no 33. If n=number of divisions required, then find the number of holes to be
    moved in direct indexing
    A : 12/n
    B : 24/n
    C : 40/n
    D : 120/n
    Q.no 34. At high cutting speed, high temperature at tool-chip interface is caused
    by
  105. Heat generation rate increases with an increase in cutting speed
  106. Friction coefficient (μ) decreases with an increase in cutting speed
  107. The time required to transfer the heat decreases with an increase in cutting
    speed
  108. Localization of heat takes place with an increase in cutting speed
    A : 1,3 &4
    B : 1,2,3 &4
    C : 1,2,& 3
    D : 2,3 &4
    Q.no 35. The useful life of a HSS tool machining mild steel at18 m/min is 3 hr.
    Calculate the tool life when the tool operate at 24 m/min.
    A : 12 min
    B : 18 min
    C : 20 min
    D : 24 min
    Q.no 36. In machining operation, Uncut chip thickness t0= 0.8 mm and Chip
    thickness tc=1.2 mm. The correct option for the chip thickness ratio (r) is
    A : 0.4
    B : 0.66
    C : 0.84
    D : 1.5
    Q.no 37. In AJM, surface roughness value will vary between which values?
    A : 0.01 – 0.10 μm
    B : 0.15 – 1.5 μm
    C : 2.0 – 5.0 μm
    D : 7.0 – 10.0 μm
    Q.no 38. Which of the following specified grinding wheel will have Silicon carbide
    abrasive?
    A : Z 46 K 5 B 17
    B : C 600 K 5 B 17
    C : A 8 K 5 B 17
    D : A 80 K 5 B 17
    Q.no 39. Which of the following is not a media of energy transfer on which the
    advanced machining processes are classified?
    A : Reactive atmosphere
    B : Electrons
    C : Electrolyte
    D : Chemical ablation
    Q.no 40. What is the value of abrasive grain flow rate in Abrasive jet machining?
    A : 0.1 – 2 g/min
    B : 3 – 20 g/min
    C : 30 – 56 g/min
    D : 68 – 85 g/min
    Q.no 41. Frequency of tool’s oscillation in USM ranges between?
    A : 5-10 kHz
    B : 10-15 kHz
    C : 18-20 kHz
    D : 25-50 kHz
    Q.no 42. Which one of the following process is worked on principle of Mechanical
    errosion
    A : AJM
    B : EDM
    C : ECM
    D : PAM
    Q.no 43. Which one of the following is a hybrid non-conventional machinig
    process
    A : ECM
    B : EDM
    C : AWJM
    D : LBM
    Q.no 44. In an orthogonal cutting the depth of cut is halved and the feed is double.
    If the chip thickness ratio is unaffected with the changed cutting conditions the
    actual chip thickness will be
    A : Doubled
    B : Halved
    C : Quadrupled
    D : unchanged
    Q.no 45. The swing diameter over the bed is………the height of the center
    measured from the bed of the lathe
    A : Equal to
    B : Twice
    C : Thrice
    D : One -half
    Q.no 46. Find the angle at which the compound rest should be set up to turn taper
    on the workpiece having a length of 20mm, larger diameter 45mm and the
    smaller diameter 30mm.
    A : 2 Degree 9 Minutes
    B : 3 Degree 9 Minutes
    C : 4 Degree 9 Minutes
    D : 5 Degree 9 Minutes
    Q.no 47. It is desired to perform the operations like drilling, reaming, counterboring etc. on a work piece. Which of the following machine will be used?
    A : Sensitive drilling machine
    B : Radial drilling machine
    C : Gang drilling machine
    D : Multiple spindle drilling
    machine
    Q.no 48. The tail stock set over required to turn a taper on the entire length of a
    workpiece having diameters D and d is
    A : D-d / (2L)
    B : D-d /(L)
    C : D-d /(2)
    D : D-d
    Q.no 49. Amplitude of oscillation of tool in USM ranges between?
    A : 0.1-10 μm
    B : 10-40 μm
    C : 50-100 μm
    D : 100-1000 μm
    Q.no 50. Which one of the following process is worked on principle of electrolysis
    using eletrolyte
    A : EDM
    B : USM
    C : AJM
    D : ECM
    Q.no 51. In an orthogonal cutting if the feed is 1.25 mm/rev, the chip thickness
    after cutting is 2 mm, then the chip thickness ratio and shear angle (for rake
    angle 10 Degrees) respectively are
    A : 0.525, 36.62 Degrees
    B : 0.625, 34.62 Degrees
    C : 0.425, 36.42 Degrees
    D : 0.325, 34.62 Degrees
    Q.no 52. A tapered pin is to be prepared on a lathe machine. If the larger diameter
    is 90 mm, smaller diameter is 80 mm, length of the pin is 100 mm, Find the angle
    of taper at which the compound rest to be swivelled around
    A : 3 Degrees and 51 Minutes
    B : 2 Degrees and 15 Minutes
    C : 4 Degrees and 51 Minutes
    D : 2 Degrees and 51 Minutes
    Q.no 53. In orthogonal turning of MS bar of 65 mm diameter machined on a lathe
    with a feed of 0.8 mm was used. A continuous chip of 1.4 mm thickness was
    removed at a rotational speed of 85 rpm. The Chip thickness ratio, Chip reduction
    ratio and Total length of the Chip in One Minute respectively is
    A : 0.5714, 1.75, 9918 mm
    B : 1.75, 0.5714, 9915 mm
    C : 1.75, 9999 mm, 05714,
    D : 57.14, 1.75, 9999 mm
    Q.no 54. In Face Milling,What is the feed per tooth when the main axis spindle
    speed is 500 rpm, number of insert is 10, and table feed is 500mm/min
    A : 0.1 mm/tooth
    B : 0.7 mm/tooth
    C : 1 mm/tooth
    D : 7 mm/tooth
    Q.no 55. In the Taylor’s tool life equation, VT^n = C, the value of n=0.5. The tool life
    has a life of 180 minutes at a cutting speed of 18 m/min. If the tool life is reduced
    to 45 minutes, then the cutting speed will be
    A : 9 m/min
    B : 18 m/min
    C : 36 m/min
    D : 72 m/min
    Q.no 56. A shaft 1200 mm long has a taper of 1:100 for a length of 600 mm. The
    maximum diameter of the shaft to be 80 mm. Determine the minimum diameter
    of staft and amount of setover
    A : 78 mm & 22 mm
    B : 60 mm & 20 mm
    C : 65 mm & 15 mm
    D : 68 mm & 12 mm
    Q.no 57. The time required for machining a workpiece 50 mm dianeter 350 mm
    length, turn all over in four passes. The approach length is 12 mm, Overtravel
    10mm, the feed = 0.5 mm/rev, and cutting speed is 35m/min.
    A : 13.016 min
    B : 10.016 min
    C : 11.016 min
    D : 12.016 min
    Q.no 58. In a drilling operation using a twist drill, the lip angle is 120 degree
    (standard), the spindle speed is 300 rpm, the feed is 0.2 mm/rev and the drill
    diameter is 10 mm,calculate machining time to drill a hole of 30 mm long ?
    A : 0.88 min
    B : 0.54 min
    C : 1.2 min
    D : 3 min
    Q.no 59. A mild steel material is being turn for 50 mm length with a feed rate of
    0.15 mm/rev and spindle speed of 1400 rpm. The time required to cut the material
    in miniutes is
    A : 0.13
    B : 0.23
    C : 0.33
    D : 0.43
    Q.no 60. In face milling,What is the cutting speed when main axis spindle speed is
    350 rpm and the cutter diameter is 125 mm ?
    A : 137.4 m/min
    B : 142 m/min
    C : 150.2 m/min
    D : 130 m/min
    Q.no 1. Which of the following material/s cannot be used for making of nozzle in
    Abrasive jet machining?
    A : Tungsten Carbide
    B : Steel alloy
    C : Sapphire
    D : Synthetic sapphire
    Q.no 2. The hardness of a grinding wheel is determined by the
    A : Hardness of abrasive grains
    B : Ability of the bond to retain abrasives
    C : Hardness of the bond
    D : Ability of the grinding wheel to penetrate the work piece
    Q.no 3. Twist drills are made of
    A : High speed steel
    B : Mild Steel
    C : Stainless steel
    D : High Carbon Steel
    Q.no 4. In Electro discharge machining, materials with low melting point have
    which type of material removal rate?
    A : Very low
    B : Low
    C : Medium
    D : High
    Q.no 5. In which process the material is removed due to the action of abrasive
    grains?
    A : Electron Beam Machining (EBM)
    B : Ultrasonic Machining (USM)
    C : Laser Beam Machining (LBM)
    D : Electrical Discharge Machining (EDM)
    Q.no 6. Which of the following process have the lowest metal removal rate?
    A : Drilling
    B : Milling
    C : Reaming
    D : Honning
    Q.no 7. The operation of producing grooves around the periphery of a cylindrical
    or conical workpiece is called
    A : profile milling
    B : Gang milling
    C : Saw milling
    D : Helical milling
    Q.no 8. In a milling operation, two side milling cutters are mounted with a desired
    distance between them so that both sides of a workpiece can be milled
    simultaneously. This set up is called
    A : Gang milling
    B : Straddle milling
    C : Face milling
    D : Side milling
    Q.no 9. Which of the following method is not used for holding tool in drilling
    machine?
    A : by a sleeve
    B : by four jaw chucks
    C : by a socket
    D : By tool holder
    Q.no 10. How is material removed in Electro discharge machining?
    A : Melt and evaporate
    B : Corrode and break
    C : Mechanical erosion takes place
    D : None of the mentioned
    Q.no 11. Which of the following is a not a surface finishing process?
    A : Honing
    B : Buffing
    C : Lapping
    D : Turning
    Q.no 12. Carbide tipped tools usually have
    A : Negative rake angle
    B : Positive rake angle
    C : Any rake angle
    D : No rake angle
    Q.no 13. Of the following properties of nozzle, which of them does not influence
    the MRR in AJM?
    A : Size
    B : Material
    C : Outside temperature
    D : Distance from work piece
    Q.no 14. Which of the following come under the main components of ECM?
    A : Feed control system
    B : Work piece holding devices
    C : Electrolyte supply system
    D : All of the mentioned
    Q.no 15. Tool life in turning will decrease by maximum extent if we double the….
    A : Depth of cut
    B : Feed
    C : Cutting Velocity
    D : Tool rake angle
    Q.no 16. Which type of adjustment required for gap voltages in ECM?
    A : Continuous adjustment
    B : Discontinuous adjustment
    C : Periodic adjustment
    D : All of the mentioned
    Q.no 17. A grinding ratio of 200 implies that the
    A : Grinding wheel wears 200 times the
    volume of the material removed
    B : grinding wheel wears 0.005 times
    the volume of the material removed
    C : aspect ratio of abrasive
    particles used in the
    grinding wheel is 200
    D : ratio of volume
    of abrasive particle
    to that of grinding
    wheel is 200
    Q.no 18. If l=length of travel of the drill in mm, n=rpm of the drill, s= feed per
    revolution of the drill in mm. Then machining time can be given as_____
    A : (ln)/s B : (ls)/n
    C : l/(n*s)
    D : (1+n)/s
    Q.no 19. Use of tail stock in cylindrical grinding machine is
    A : To drive the work piece
    B : To give feed to the wheel head
    C : To provide Speed to
    grinding wheel
    D : To support the
    other end of the
    work piece
    Q.no 20. The operation of making a cone-shaped enlargement of the end of a hole
    is known as
    A : counter-sinking
    B : Counter-boring
    C : Treppaning
    D : Spot facing
    Q.no 21. Which of the following symbol’s range of alphabet represent soft grain in
    grinding wheel?
    A : A – H
    B : I – P
    C : Q – T
    D : T – Z
    Q.no 22. Cast iron during machining produces
    A : Continuous chips
    B : Dis-Continuous chips
    C : Continuous chips with
    built-up-edge
    D : None of these
    Q.no 23. Burnishing is a process of
    A : Cold working
    B : Hot working
    C : Press working
    D : Metal Cutting
    Q.no 24. Lapping is an operation of_________
    A : Making a cone-shaped enlargement
    of the end of a hole
    B : Smoothing and squaring the
    surface around a hole
    C : Sizing and finishing a
    small diameter hole
    D : Producing a hole by
    removing metal along
    the circumference of
    a hollow cutting tool
    Q.no 25. Discontinuous chips are formed during machine of
    A : Brittle metals
    B : Ductile metals
    C : Soft metals
    D : Tough metals
    Q.no 26. A dynamo-meter is a device used for the measurement of
    A : Chip thickness ratio
    B : Forces during metal cutting
    C : Wear of the cutting tool
    D : Deflection of the cutting tool
    Q.no 27. In oblique cutting of metals, the cutting edge of the tools is.
    A : Perpendicular to the workpiece
    B : Perpendicular to the direction of
    tool travel
    C : Parallel to the direction of
    tool travel
    D : Inclined at an angle less
    than 90 to the direction of tool travel
    Q.no 28. Feed control system is responsible for which action in ECM?
    A : Giving feed to tool
    B : Electrolyte supply
    C : Power supply
    D : None of the mentioned
    Q.no 29. As the abrasive flow rate increases, what happens to the volumetric
    removal rate in AJM?
    A : Increases
    B : Decreases
    C : Increase and then decrease
    D : Decrease and then increase
    Q.no 30. Which of the following processes is generally applied for dentistry work
    like to drill fine holes of particular shape in teeth?
    A : Electrical Discharge Machining (EDM)
    B : Electron Beam Machining (EBM)
    C : Laser Beam Machining (LBM)
    D : Ultrasonic Machining (USM)
    Q.no 31. If n=number of divisions required, then find the number of holes to be
    moved in direct indexing
    A : 12/n
    B : 24/n
    C : 40/n
    D : 120/n
    Q.no 32. In AJM, surface roughness value will vary between which values?
    A : 0.01 – 0.10 μm
    B : 0.15 – 1.5 μm
    C : 2.0 – 5.0 μm
    D : 7.0 – 10.0 μm
    Q.no 33. In Abrasive jet machining, what may be the size of the abrasive grains
    used?
    A : 10 – 40 μm
    B : 50 – 100 μm
    C : 100 – 150 μm
    D : 200 – 300 μm
    Q.no 34. The useful life of a HSS tool machining mild steel at18 m/min is 3 hr.
    Calculate the tool life when the tool operate at 24 m/min.
    A : 12 min
    B : 18 min
    C : 20 min
    D : 24 min
    Q.no 35. In machining operation, Uncut chip thickness t0= 0.8 mm and Chip
    thickness tc=1.2 mm. The correct option for the chip thickness ratio (r) is
    A : 0.4
    B : 0.66
    C : 0.84
    D : 1.5
    Q.no 36. Which one of the following is not a hybrid non-conventional machinig
    process
    A : ECDM
    B : AWJM
    C : Ultrasonic assisted EDM
    D : EBM
    Q.no 37. Which of the following specified grinding wheel will have Aluminum
    oxide abrasive?
    A : Z 46 K 5 B 17
    B : C 600 K 5 B 17
    C : C 8 K 5 B 17
    D : A 80 K 5 B 17
    Q.no 38. What is the general life of Tungsten carbide material nozzle in AJM?
    A : 1 – 8 hrs
    B : 2 – 5 hrs
    C : 10 – 15 hrs
    D : 25 – 40 hrs
    Q.no 39. Grinding wheel is specified as “A 46 K 5 B 17”. Grain size of a wheel will be
    A : Coarse
    B : Medium
    C : Fine
    D : Very Fine
    Q.no 40. At high cutting speed, high temperature at tool-chip interface is caused
    by
  109. Heat generation rate increases with an increase in cutting speed
  110. Friction coefficient (μ) decreases with an increase in cutting speed
  111. The time required to transfer the heat decreases with an increase in cutting
    speed
  112. Localization of heat takes place with an increase in cutting speed
    A : 1,3 &4
    B : 1,2,3 &4
    C : 1,2,& 3
    D : 2,3 &4
    Q.no 41. Which one of the following process is worked on principle of electrolysis
    using eletrolyte
    A : EDM
    B : USM
    C : AJM
    D : ECM
    Q.no 42. Which of the following is not a media of energy transfer on which the
    advanced machining processes are classified?
    A : Reactive atmosphere
    B : Electrons
    C : Electrolyte
    D : Chemical ablation
    Q.no 43. Find the angle at which the compound rest should be set up to turn taper
    on the workpiece having a length of 20mm, larger diameter 45mm and the
    smaller diameter 30mm.
    A : 2 Degree 9 Minutes
    B : 3 Degree 9 Minutes
    C : 4 Degree 9 Minutes
    D : 5 Degree 9 Minutes
    Q.no 44. Which of the following specified grinding wheel will have Silicon carbide
    abrasive?
    A : Z 46 K 5 B 17
    B : C 600 K 5 B 17
    C : A 8 K 5 B 17
    D : A 80 K 5 B 17
    Q.no 45. The swing diameter over the bed is………the height of the center
    measured from the bed of the lathe
    A : Equal to
    B : Twice
    C : Thrice
    D : One -half
    Q.no 46. It is desired to perform the operations like drilling, reaming, counterboring etc. on a work piece. Which of the following machine will be used?
    A : Sensitive drilling machine
    B : Radial drilling machine
    C : Gang drilling machine
    D : Multiple spindle drilling
    machine
    Q.no 47. What is the value of abrasive grain flow rate in Abrasive jet machining?
    A : 0.1 – 2 g/min
    B : 3 – 20 g/min
    C : 30 – 56 g/min
    D : 68 – 85 g/min
    Q.no 48. Frequency of tool’s oscillation in USM ranges between?
    A : 5-10 kHz
    B : 10-15 kHz
    C : 18-20 kHz
    D : 25-50 kHz
    Q.no 49. Amplitude of oscillation of tool in USM ranges between?
    A : 0.1-10 μm
    B : 10-40 μm
    C : 50-100 μm
    D : 100-1000 μm
    Q.no 50. The tail stock set over required to turn a taper on the entire length of a
    workpiece having diameters D and d is
    A : D-d / (2L)
    B : D-d /(L)
    C : D-d /(2)
    D : D-d
    Q.no 51. In an orthogonal cutting if the feed is 1.25 mm/rev, the chip thickness
    after cutting is 2 mm, then the chip thickness ratio and shear angle (for rake
    angle 10 Degrees) respectively are
    A : 0.525, 36.62 Degrees
    B : 0.625, 34.62 Degrees
    C : 0.425, 36.42 Degrees
    D : 0.325, 34.62 Degrees
    Q.no 52. Calculate the cutting speed of drilling operation when diameter of drill is
    10 mm and rotational speed of drill is 200 r.p.m.
    A : 6.283 m/min
    B : 3.142 m/min
    C : 8.362 m/min
    D : 10.216 m/min
    Q.no 53. In orthogonal cutting feed is 0.2 mm/rev, Chip thickness is 0.3 mm, Rake
    angle is 15 degrees. Then the shear plane angle in degrees is
    A : 27.9
    B : 17.9
    C : 37.9
    D : 47.9
    Q.no 54. Time required for one complete cut on the piece of work 350 mm long
    and 50 mm in diameter. the cutting speed is 35 m/min and feed is 0.5 mm/rev.
    A : 2.1 Min
    B : 3.1 Min
    C : 3.5 Min
    D : 3.6 Min
    Q.no 55. Using the Taylor equation VT^n=c, calculate the percentage increase in
    tool life when the cutting speed is reduced is reduced by 50% (n=0.5 and c=400)
    A : 300%
    B : 400%
    C : 100%
    D : 200%
    Q.no 56. In a drilling operation using a twist drill, the lip angle is 120 degree
    (standard), the spindle speed is 300 rpm, the feed is 0.2 mm/rev and the drill
    diameter is 10 mm,calculate machining time to drill a hole of 30 mm long ?
    A : 0.88 min
    B : 0.54 min
    C : 1.2 min
    D : 3 min
    Q.no 57. In the Taylor’s tool life equation, VT^n = C, the value of n=0.5. The tool life
    has a life of 180 minutes at a cutting speed of 18 m/min. If the tool life is reduced
    to 45 minutes, then the cutting speed will be
    A : 9 m/min
    B : 18 m/min
    C : 36 m/min
    D : 72 m/min
    Q.no 58. A tapered pin is to be prepared on a lathe machine. If the larger diameter
    is 90 mm, smaller diameter is 80 mm, length of the pin is 100 mm, Find the angle
    of taper at which the compound rest to be swivelled around
    A : 3 Degrees and 51 Minutes
    B : 2 Degrees and 15 Minutes
    C : 4 Degrees and 51 Minutes
    D : 2 Degrees and 51 Minutes
    Q.no 59. A mild steel material is being turn for 50 mm length with a feed rate of
    0.15 mm/rev and spindle speed of 1400 rpm. The time required to cut the material
    in miniutes is
    A : 0.13
    B : 0.23
    C : 0.33
    D : 0.43
    Q.no 60. The time required for machining a workpiece 50 mm dianeter 350 mm
    length, turn all over in four passes. The approach length is 12 mm, Overtravel
    10mm, the feed = 0.5 mm/rev, and cutting speed is 35m/min.
    A : 13.016 min
    B : 10.016 min
    C : 11.016 min
    D : 12.016 min
    Q.no 1. The angle between the face and flank of the single point cutting tool is
    known as
    A : Rake angle
    B : Clearance angle
    C : Lip angle
    D : Point angle
    Q.no 2. The usual value of the point angle of a drill is
    A : 70°
    B : 100°
    C : 118°
    D : 130°
    Q.no 3. A grinding wheel is said to be of if it holds the abrasive grains
    more securely
    A : Soft grade
    B : Medium grade
    C : Hard grade
    D : very soft grade
    Q.no 4. In centreless grinding, workpiece centre will be
    A : Above the line joining the two
    wheel centres
    B : Below the line joining the two
    wheel centres
    C : On the line joining the two
    wheel centres
    D : At the intersection of the
    line joining the wheel
    centres with the workpiece
    Q.no 5. If a cutting tool is designed as 8°-14°-6°-8°-8°-19°-1mm what is the side Rake
    angle of the tool
    A : 14°
    B : 19°
    C : 6°
    D : 8°
    Q.no 6. Which of the following material/s cannot be used for making of nozzle in
    Abrasive jet machining?
    A : Tungsten Carbide
    B : Steel alloy
    C : Sapphire
    D : Synthetic sapphire
    Q.no 7. The hardness of a grinding wheel is determined by the
    A : Hardness of abrasive grains
    B : Ability of the bond to retain abrasives
    C : Hardness of the bond
    D : Ability of the grinding wheel to penetrate the work piece
    Q.no 8. Which of the following range of numbers represents dense structure of
    abrasives?
    A : 0-7
    B : 8-10
    C : 10-12
    D : 12-16
    Q.no 9. The tool life is said to be over if
    A : Poor surface finish is obtained
    B : There is sudden increase in cutting
    forces and power consumption
    C : Overheating and fuming due to
    heat of friction starts
    D : All of the above
    Q.no 10. Grinding wheel Tool signature consists of _
    elements
    A : 4
    B : 5
    C : 6
    D : 7
    Q.no 11. Removing dull grains in order to make grinding wheel sharp is known as
    A : Loading
    B : Glazing
    C : Dressing
    D : Trueing
    Q.no 12. In centerless grinders, the regulating wheel is inclined at
    A : 0° to 8°
    B : 9° to 15°
    C : 16° to 20°
    D : 21° to 25°
    Q.no 13. For which of the following operations, broaching can be used?
    A : Threading
    B : Grinding
    C : Spline cutting
    D : Increasing the size of the
    existing hole for a certain
    length
    Q.no 14. The main purpose of a boring operation, as compared to drilling, is to
    A : Drill a hole
    B : Finish the drilled hole
    C : Correct the hole
    D : Enlarge the existing hole
    Q.no 15. A half nut is
    A : Damaged nut
    B : Nut manufactured in parts
    C : Nut with half the standard pitch
    D : Mechanism that locks the
    lathe carriage to the load
    screw for thread cutting
    Q.no 16. A coarse grained grinding wheel is used to grind
    A : Soft and Hard materials
    B : Soft and ductile materials
    C : Hard Material
    D : Tough Material
    Q.no 17. Shear angle varies with
    A : Cutting speed
    B : Feed
    C : Depth of cut
    D : Work piece materials and
    tool geometry
    Q.no 18. In Abrasive jet machining, work piece material of removed by which of
    the following means?
    A : Vaporization
    B : Electro plating
    C : Mechanical abrasion
    D : Corrosion
    Q.no 19. Which of the following process has highest rate of metal removal
    A : Electric Discharge Machining (EDM)
    B : Electro-Chemical Machining (ECM)
    C : Ultrasonic Machining (USM)
    D : Laser Beam Machining (LBM)
    Q.no 20. Steady rest is
    A : An additional support provided for long jobs
    B : Used while turning unsymmetrical
    objects
    C : Used during Plain cutting only
    D : Used when a lathe is
    subject to vibrations
    Q.no 21. When the metal is removed by erosion caused by rapidly recurring spark
    discharges between the tool and work, the process is known as
    A : Electrochemical machining
    B : Electro-discharge machining
    C : Ultrasonic machining
    D : None of these
    Q.no 22. In __ operation, the chip thickness is minimum at the beginning of
    the
    A : conventional milling
    B : climb milling
    C : face milling
    D : end milling
    Q.no 23. Which of the following processes is generally applied for dentistry work
    like to drill fine holes of particular shape in teeth?
    A : Electrical Discharge Machining (EDM)
    B : Electron Beam Machining (EBM)
    C : Laser Beam Machining (LBM)
    D : Ultrasonic Machining (USM)
    Q.no 24. In oblique cutting of metals, the cutting edge of the tools is.
    A : Perpendicular to the workpiece
    B : Perpendicular to the direction of
    tool travel
    C : Parallel to the direction of
    tool travel
    D : Inclined at an angle less
    than 90 to the direction of tool travel
    Q.no 25. Which of the following symbol’s range of alphabet represent soft grain in
    grinding wheel?
    A : A – H
    B : I – P
    C : Q – T
    D : T – Z
    Q.no 26. As the abrasive flow rate increases, what happens to the volumetric
    removal rate in AJM?
    A : Increases
    B : Decreases
    C : Increase and then decrease
    D : Decrease and then increase
    Q.no 27. Feed control system is responsible for which action in ECM?
    A : Giving feed to tool
    B : Electrolyte supply
    C : Power supply
    D : None of the mentioned
    Q.no 28. Which of the following method is not used for holding tool in drilling
    machine?
    A : by a sleeve
    B : by four jaw chucks
    C : by a socket
    D : By tool holder
    Q.no 29. In which process the material is removed due to the action of abrasive
    grains?
    A : Electron Beam Machining (EBM)
    B : Ultrasonic Machining (USM)
    C : Laser Beam Machining (LBM)
    D : Electrical Discharge Machining (EDM)
    Q.no 30. Which of the following come under the main components of ECM?
    A : Feed control system
    B : Work piece holding devices
    C : Electrolyte supply system
    D : All of the mentioned
    Q.no 31. Which one of the following process is worked on principle of Mechanical
    errosion
    A : AJM
    B : EDM
    C : ECM
    D : PAM
    Q.no 32. At high cutting speed, high temperature at tool-chip interface is caused
    by
  113. Heat generation rate increases with an increase in cutting speed
  114. Friction coefficient (μ) decreases with an increase in cutting speed
  115. The time required to transfer the heat decreases with an increase in cutting
    speed
  116. Localization of heat takes place with an increase in cutting speed
    A : 1,3 &4
    B : 1,2,3 &4
    C : 1,2,& 3
    D : 2,3 &4
    Q.no 33. The useful life of a HSS tool machining mild steel at18 m/min is 3 hr.
    Calculate the tool life when the tool operate at 24 m/min.
    A : 12 min
    B : 18 min
    C : 20 min
    D : 24 min
    Q.no 34. Which one of the following is a hybrid non-conventional machinig
    process
    A : ECM
    B : EDM
    C : AWJM
    D : LBM
    Q.no 35. In an orthogonal cutting the depth of cut is halved and the feed is double.
    If the chip thickness ratio is unaffected with the changed cutting conditions the
    actual chip thickness will be
    A : Doubled
    B : Halved
    C : Quadrupled
    D : unchanged
    Q.no 36. In AJM, surface roughness value will vary between which values?
    A : 0.01 – 0.10 μm
    B : 0.15 – 1.5 μm
    C : 2.0 – 5.0 μm
    D : 7.0 – 10.0 μm
    Q.no 37. What is the general life of Tungsten carbide material nozzle in AJM?
    A : 1 – 8 hrs
    B : 2 – 5 hrs
    C : 10 – 15 hrs
    D : 25 – 40 hrs
    Q.no 38. Which one of the following is not a hybrid non-conventional machinig
    process
    A : ECDM
    B : AWJM
    C : Ultrasonic assisted EDM
    D : EBM
    Q.no 39. Which of the following specified grinding wheel will have Aluminum
    oxide abrasive?
    A : Z 46 K 5 B 17
    B : C 600 K 5 B 17
    C : C 8 K 5 B 17
    D : A 80 K 5 B 17
    Q.no 40. Grinding wheel is specified as “A 46 K 5 B 17”. Grain size of a wheel will be
    A : Coarse
    B : Medium
    C : Fine
    D : Very Fine
    Q.no 41. In machining operation, Uncut chip thickness t0= 0.8 mm and Chip
    thickness tc=1.2 mm. The correct option for the chip thickness ratio (r) is
    A : 0.4
    B : 0.66
    C : 0.84
    D : 1.5
    Q.no 42. If n=number of divisions required, then find the number of holes to be
    moved in direct indexing
    A : 12/n
    B : 24/n
    C : 40/n
    D : 120/n
    Q.no 43. In Abrasive jet machining, what may be the size of the abrasive grains
    used?
    A : 10 – 40 μm
    B : 50 – 100 μm
    C : 100 – 150 μm
    D : 200 – 300 μm
    Q.no 44. Which of the following specified grinding wheel will have Silicon carbide
    abrasive?
    A : Z 46 K 5 B 17
    B : C 600 K 5 B 17
    C : A 8 K 5 B 17
    D : A 80 K 5 B 17
    Q.no 45. Frequency of tool’s oscillation in USM ranges between?
    A : 5-10 kHz
    B : 10-15 kHz
    C : 18-20 kHz
    D : 25-50 kHz
    Q.no 46. Amplitude of oscillation of tool in USM ranges between?
    A : 0.1-10 μm
    B : 10-40 μm
    C : 50-100 μm
    D : 100-1000 μm
    Q.no 47. The tail stock set over required to turn a taper on the entire length of a
    workpiece having diameters D and d is
    A : D-d / (2L)
    B : D-d /(L)
    C : D-d /(2)
    D : D-d
    Q.no 48. It is desired to perform the operations like drilling, reaming, counterboring etc. on a work piece. Which of the following machine will be used?
    A : Sensitive drilling machine
    B : Radial drilling machine
    C : Gang drilling machine
    D : Multiple spindle drilling
    machine
    Q.no 49. Which one of the following process is worked on principle of electrolysis
    using eletrolyte
    A : EDM
    B : USM
    C : AJM
    D : ECM
    Q.no 50. Find the angle at which the compound rest should be set up to turn taper
    on the workpiece having a length of 20mm, larger diameter 45mm and the
    smaller diameter 30mm.
    A : 2 Degree 9 Minutes
    B : 3 Degree 9 Minutes
    C : 4 Degree 9 Minutes
    D : 5 Degree 9 Minutes
    Q.no 51. Calculate the cutting speed of drilling operation when diameter of drill is
    10 mm and rotational speed of drill is 200 r.p.m.
    A : 6.283 m/min
    B : 3.142 m/min
    C : 8.362 m/min
    D : 10.216 m/min
    Q.no 52. In orthogonal cutting feed is 0.2 mm/rev, Chip thickness is 0.3 mm, Rake
    angle is 15 degrees. Then the shear plane angle in degrees is
    A : 27.9
    B : 17.9
    C : 37.9
    D : 47.9
    Q.no 53. In orthogonal turning of MS bar of 65 mm diameter machined on a lathe
    with a feed of 0.8 mm was used. A continuous chip of 1.4 mm thickness was
    removed at a rotational speed of 85 rpm. The Chip thickness ratio, Chip reduction
    ratio and Total length of the Chip in One Minute respectively is
    A : 0.5714, 1.75, 9918 mm
    B : 1.75, 0.5714, 9915 mm
    C : 1.75, 9999 mm, 05714,
    D : 57.14, 1.75, 9999 mm
    Q.no 54. In Face Milling,What is the feed per tooth when the main axis spindle
    speed is 500 rpm, number of insert is 10, and table feed is 500mm/min
    A : 0.1 mm/tooth
    B : 0.7 mm/tooth
    C : 1 mm/tooth
    D : 7 mm/tooth
    Q.no 55. In face milling,What is the cutting speed when main axis spindle speed is
    350 rpm and the cutter diameter is 125 mm ?
    A : 137.4 m/min
    B : 142 m/min
    C : 150.2 m/min
    D : 130 m/min
    Q.no 56. A shaft 1200 mm long has a taper of 1:100 for a length of 600 mm. The
    maximum diameter of the shaft to be 80 mm. Determine the minimum diameter
    of staft and amount of setover
    A : 78 mm & 22 mm
    B : 60 mm & 20 mm
    C : 65 mm & 15 mm
    D : 68 mm & 12 mm
    Q.no 57. In an orthogonal cutting if the feed is 1.25 mm/rev, the chip thickness
    after cutting is 2 mm, then the chip thickness ratio and shear angle (for rake
    angle 10 Degrees) respectively are
    A : 0.525, 36.62 Degrees
    B : 0.625, 34.62 Degrees
    C : 0.425, 36.42 Degrees
    D : 0.325, 34.62 Degrees
    Q.no 58. Using the Taylor equation VT^n=c, calculate the percentage increase in
    tool life when the cutting speed is reduced is reduced by 50% (n=0.5 and c=400)
    A : 300%
    B : 400%
    C : 100%
    D : 200%
    Q.no 59. In the Taylor’s tool life equation, VT^n = C, the value of n=0.5. The tool life
    has a life of 180 minutes at a cutting speed of 18 m/min. If the tool life is reduced
    to 45 minutes, then the cutting speed will be
    A : 9 m/min
    B : 18 m/min
    C : 36 m/min
    D : 72 m/min
    Q.no 60. A tapered pin is to be prepared on a lathe machine. If the larger diameter
    is 90 mm, smaller diameter is 80 mm, length of the pin is 100 mm, Find the angle
    of taper at which the compound rest to be swivelled around
    A : 3 Degrees and 51 Minutes
    B : 2 Degrees and 15 Minutes
    C : 4 Degrees and 51 Minutes
    D : 2 Degrees and 51 Minutes
    Q.no 1. The usual value of the point angle of a drill is
    A : 70°
    B : 100°
    C : 118°
    D : 130°
    Q.no 2. Use of tail stock in cylindrical grinding machine is
    A : To drive the work piece
    B : To give feed to the wheel head
    C : To provide Speed to
    grinding wheel
    D : To support the
    other end of the
    work piece
    Q.no 3. Which type of adjustment required for gap voltages in ECM?
    A : Continuous adjustment
    B : Discontinuous adjustment
    C : Periodic adjustment
    D : All of the mentioned
    Q.no 4. If l=length of travel of the drill in mm, n=rpm of the drill, s= feed per
    revolution of the drill in mm. Then machining time can be given as_____
    A : (ln)/s B : (ls)/n
    C : l/(n*s)
    D : (1+n)/s
    Q.no 5. The operation of making a cone-shaped enlargement of the end of a hole is
    known as
    A : counter-sinking
    B : Counter-boring
    C : Treppaning
    D : Spot facing
    Q.no 6. The operation of producing grooves around the periphery of a cylindrical
    or conical workpiece is called
    A : profile milling
    B : Gang milling
    C : Saw milling
    D : Helical milling
    Q.no 7. A dynamo-meter is a device used for the measurement of
    A : Chip thickness ratio
    B : Forces during metal cutting
    C : Wear of the cutting tool
    D : Deflection of the cutting tool
    Q.no 8. Carbide tipped tools usually have
    A : Negative rake angle
    B : Positive rake angle
    C : Any rake angle
    D : No rake angle
    Q.no 9. Which of the following process have the lowest metal removal rate?
    A : Drilling
    B : Milling
    C : Reaming
    D : Honning
    Q.no 10. Tool life in turning will decrease by maximum extent if we double the….
    A : Depth of cut
    B : Feed
    C : Cutting Velocity
    D : Tool rake angle
    Q.no 11. Lapping is an operation of_________
    A : Making a cone-shaped enlargement
    of the end of a hole
    B : Smoothing and squaring the
    surface around a hole
    C : Sizing and finishing a
    small diameter hole
    D : Producing a hole by
    removing metal along
    the circumference of
    a hollow cutting tool
    Q.no 12. A grinding ratio of 200 implies that the
    A : Grinding wheel wears 200 times the
    volume of the material removed
    B : grinding wheel wears 0.005 times
    the volume of the material removed
    C : aspect ratio of abrasive
    particles used in the
    grinding wheel is 200
    D : ratio of volume
    of abrasive particle
    to that of grinding
    wheel is 200
    Q.no 13. In Electro discharge machining, materials with low melting point have
    which type of material removal rate?
    A : Very low
    B : Low
    C : Medium
    D : High
    Q.no 14. Twist drills are made of
    A : High speed steel
    B : Mild Steel
    C : Stainless steel
    D : High Carbon Steel
    Q.no 15. Burnishing is a process of
    A : Cold working
    B : Hot working
    C : Press working
    D : Metal Cutting
    Q.no 16. In a milling operation, two side milling cutters are mounted with a
    desired distance between them so that both sides of a workpiece can be milled
    simultaneously. This set up is called
    A : Gang milling
    B : Straddle milling
    C : Face milling
    D : Side milling
    Q.no 17. Cast iron during machining produces
    A : Continuous chips
    B : Dis-Continuous chips
    C : Continuous chips with
    built-up-edge
    D : None of these
    Q.no 18. How is material removed in Electro discharge machining?
    A : Melt and evaporate
    B : Corrode and break
    C : Mechanical erosion takes place
    D : None of the mentioned
    Q.no 19. The angle between the face and flank of the single point cutting tool is
    known as
    A : Rake angle
    B : Clearance angle
    C : Lip angle
    D : Point angle
    Q.no 20. Discontinuous chips are formed during machine of
    A : Brittle metals
    B : Ductile metals
    C : Soft metals
    D : Tough metals
    Q.no 21. Which of the following is a not a surface finishing process?
    A : Honing
    B : Buffing
    C : Lapping
    D : Turning
    Q.no 22. Of the following properties of nozzle, which of them does not influence
    the MRR in AJM?
    A : Size
    B : Material
    C : Outside temperature
    D : Distance from work piece
    Q.no 23. Which of the following process has highest rate of metal removal
    A : Electric Discharge Machining (EDM)
    B : Electro-Chemical Machining (ECM)
    C : Ultrasonic Machining (USM)
    D : Laser Beam Machining (LBM)
    Q.no 24. In centreless grinding, workpiece centre will be
    A : Above the line joining the two
    wheel centres
    B : Below the line joining the two
    wheel centres
    C : On the line joining the two
    wheel centres
    D : At the intersection of the
    line joining the wheel
    centres with the workpiece
    Q.no 25. Which of the following material/s cannot be used for making of nozzle in
    Abrasive jet machining?
    A : Tungsten Carbide
    B : Steel alloy
    C : Sapphire
    D : Synthetic sapphire
    Q.no 26. For which of the following operations, broaching can be used?
    A : Threading
    B : Grinding
    C : Spline cutting
    D : Increasing the size of the
    existing hole for a certain
    length
    Q.no 27. Shear angle varies with
    A : Cutting speed
    B : Feed
    C : Depth of cut
    D : Work piece materials and
    tool geometry
    Q.no 28. Grinding wheel Tool signature consists of __ elements
    A : 4
    B : 5
    C : 6
    D : 7
    Q.no 29. As the abrasive flow rate increases, what happens to the volumetric
    removal rate in AJM?
    A : Increases
    B : Decreases
    C : Increase and then decrease
    D : Decrease and then increase
    Q.no 30. Which of the following range of numbers represents dense structure of
    abrasives?
    A : 0-7
    B : 8-10
    C : 10-12
    D : 12-16
    Q.no 31. Which one of the following is a hybrid non-conventional machinig
    process
    A : ECM
    B : EDM
    C : AWJM
    D : LBM
    Q.no 32. The swing diameter over the bed is………the height of the center
    measured from the bed of the lathe
    A : Equal to
    B : Twice
    C : Thrice
    D : One -half
    Q.no 33. Which of the following is not a media of energy transfer on which the
    advanced machining processes are classified?
    A : Reactive atmosphere
    B : Electrons
    C : Electrolyte
    D : Chemical ablation
    Q.no 34. In an orthogonal cutting the depth of cut is halved and the feed is double.
    If the chip thickness ratio is unaffected with the changed cutting conditions the
    actual chip thickness will be
    A : Doubled
    B : Halved
    C : Quadrupled
    D : unchanged
    Q.no 35. Which one of the following process is worked on principle of Mechanical
    errosion
    A : AJM
    B : EDM
    C : ECM
    D : PAM
    Q.no 36. At high cutting speed, high temperature at tool-chip interface is caused
    by
  117. Heat generation rate increases with an increase in cutting speed
  118. Friction coefficient (μ) decreases with an increase in cutting speed
  119. The time required to transfer the heat decreases with an increase in cutting
    speed
  120. Localization of heat takes place with an increase in cutting speed
    A : 1,3 &4
    B : 1,2,3 &4
    C : 1,2,& 3
    D : 2,3 &4
    Q.no 37. What is the value of abrasive grain flow rate in Abrasive jet machining?
    A : 0.1 – 2 g/min
    B : 3 – 20 g/min
    C : 30 – 56 g/min
    D : 68 – 85 g/min
    Q.no 38. Which one of the following is not a hybrid non-conventional machinig
    process
    A : ECDM
    B : AWJM
    C : Ultrasonic assisted EDM
    D : EBM
    Q.no 39. In AJM, surface roughness value will vary between which values?
    A : 0.01 – 0.10 μm
    B : 0.15 – 1.5 μm
    C : 2.0 – 5.0 μm
    D : 7.0 – 10.0 μm
    Q.no 40. What is the general life of Tungsten carbide material nozzle in AJM?
    A : 1 – 8 hrs
    B : 2 – 5 hrs
    C : 10 – 15 hrs
    D : 25 – 40 hrs
    Q.no 41. The useful life of a HSS tool machining mild steel at18 m/min is 3 hr.
    Calculate the tool life when the tool operate at 24 m/min.
    A : 12 min
    B : 18 min
    C : 20 min
    D : 24 min
    Q.no 42. It is desired to perform the operations like drilling, reaming, counterboring etc. on a work piece. Which of the following machine will be used?
    A : Sensitive drilling machine
    B : Radial drilling machine
    C : Gang drilling machine
    D : Multiple spindle drilling
    machine
    Q.no 43. Amplitude of oscillation of tool in USM ranges between?
    A : 0.1-10 μm
    B : 10-40 μm
    C : 50-100 μm
    D : 100-1000 μm
    Q.no 44. If n=number of divisions required, then find the number of holes to be
    moved in direct indexing
    A : 12/n
    B : 24/n
    C : 40/n
    D : 120/n
    Q.no 45. The tail stock set over required to turn a taper on the entire length of a
    workpiece having diameters D and d is
    A : D-d / (2L)
    B : D-d /(L)
    C : D-d /(2)
    D : D-d
    Q.no 46. In Abrasive jet machining, what may be the size of the abrasive grains
    used?
    A : 10 – 40 μm
    B : 50 – 100 μm
    C : 100 – 150 μm
    D : 200 – 300 μm
    Q.no 47. In machining operation, Uncut chip thickness t0= 0.8 mm and Chip
    thickness tc=1.2 mm. The correct option for the chip thickness ratio (r) is
    A : 0.4
    B : 0.66
    C : 0.84
    D : 1.5
    Q.no 48. Which one of the following process is worked on principle of electrolysis
    using eletrolyte
    A : EDM
    B : USM
    C : AJM
    D : ECM
    Q.no 49. Frequency of tool’s oscillation in USM ranges between?
    A : 5-10 kHz
    B : 10-15 kHz
    C : 18-20 kHz
    D : 25-50 kHz
    Q.no 50. Find the angle at which the compound rest should be set up to turn taper
    on the workpiece having a length of 20mm, larger diameter 45mm and the
    smaller diameter 30mm.
    A : 2 Degree 9 Minutes
    B : 3 Degree 9 Minutes
    C : 4 Degree 9 Minutes
    D : 5 Degree 9 Minutes
    Q.no 51. In a drilling operation using a twist drill, the lip angle is 120 degree
    (standard), the spindle speed is 300 rpm, the feed is 0.2 mm/rev and the drill
    diameter is 10 mm,calculate machining time to drill a hole of 30 mm long ?
    A : 0.88 min
    B : 0.54 min
    C : 1.2 min
    D : 3 min
    Q.no 52. Time required for one complete cut on the piece of work 350 mm long
    and 50 mm in diameter. the cutting speed is 35 m/min and feed is 0.5 mm/rev.
    A : 2.1 Min
    B : 3.1 Min
    C : 3.5 Min
    D : 3.6 Min
    Q.no 53. Calculate the cutting speed of drilling operation when diameter of drill is
    10 mm and rotational speed of drill is 200 r.p.m.
    A : 6.283 m/min
    B : 3.142 m/min
    C : 8.362 m/min
    D : 10.216 m/min
    Q.no 54. The time required for machining a workpiece 50 mm dianeter 350 mm
    length, turn all over in four passes. The approach length is 12 mm, Overtravel
    10mm, the feed = 0.5 mm/rev, and cutting speed is 35m/min.
    A : 13.016 min
    B : 10.016 min
    C : 11.016 min
    D : 12.016 min
    Q.no 55. A mild steel material is being turn for 50 mm length with a feed rate of
    0.15 mm/rev and spindle speed of 1400 rpm. The time required to cut the material
    in miniutes is
    A : 0.13
    B : 0.23
    C : 0.33
    D : 0.43
    Q.no 56. In orthogonal cutting feed is 0.2 mm/rev, Chip thickness is 0.3 mm, Rake
    angle is 15 degrees. Then the shear plane angle in degrees is
    A : 27.9
    B : 17.9
    C : 37.9
    D : 47.9
    Q.no 57. A tapered pin is to be prepared on a lathe machine. If the larger diameter
    is 90 mm, smaller diameter is 80 mm, length of the pin is 100 mm, Find the angle
    of taper at which the compound rest to be swivelled around
    A : 3 Degrees and 51 Minutes
    B : 2 Degrees and 15 Minutes
    C : 4 Degrees and 51 Minutes
    D : 2 Degrees and 51 Minutes
    Q.no 58. In orthogonal turning of MS bar of 65 mm diameter machined on a lathe
    with a feed of 0.8 mm was used. A continuous chip of 1.4 mm thickness was
    removed at a rotational speed of 85 rpm. The Chip thickness ratio, Chip reduction
    ratio and Total length of the Chip in One Minute respectively is
    A : 0.5714, 1.75, 9918 mm
    B : 1.75, 0.5714, 9915 mm
    C : 1.75, 9999 mm, 05714,
    D : 57.14, 1.75, 9999 mm
    Q.no 59. Using the Taylor equation VT^n=c, calculate the percentage increase in
    tool life when the cutting speed is reduced is reduced by 50% (n=0.5 and c=400)
    A : 300%
    B : 400%
    C : 100%
    D : 200%
    Q.no 60. In face milling,What is the cutting speed when main axis spindle speed is
    350 rpm and the cutter diameter is 125 mm ?
    A : 137.4 m/min
    B : 142 m/min
    C : 150.2 m/min
    D : 130 m/min
    Q.no 1. Carbide tipped tools usually have
    A : Negative rake angle
    B : Positive rake angle
    C : Any rake angle
    D : No rake angle
    Q.no 2. Tool life in turning will decrease by maximum extent if we double the….
    A : Depth of cut
    B : Feed
    C : Cutting Velocity
    D : Tool rake angle
    Q.no 3. The tool life is said to be over if
    A : Poor surface finish is obtained
    B : There is sudden increase in cutting
    forces and power consumption
    C : Overheating and fuming due to
    heat of friction starts
    D : All of the above
    Q.no 4. Which of the following processes is generally applied for dentistry work
    like to drill fine holes of particular shape in teeth?
    A : Electrical Discharge Machining (EDM)
    B : Electron Beam Machining (EBM)
    C : Laser Beam Machining (LBM)
    D : Ultrasonic Machining (USM)
    Q.no 5. A half nut is
    A : Damaged nut
    B : Nut manufactured in parts
    C : Nut with half the standard pitch
    D : Mechanism that locks the
    lathe carriage to the load
    screw for thread cutting
    Q.no 6. Which of the following method is not used for holding tool in drilling
    machine?
    A : by a sleeve
    B : by four jaw chucks
    C : by a socket
    D : By tool holder
    Q.no 7. Which type of adjustment required for gap voltages in ECM?
    A : Continuous adjustment
    B : Discontinuous adjustment
    C : Periodic adjustment
    D : All of the mentioned
    Q.no 8. When the metal is removed by erosion caused by rapidly recurring spark
    discharges between the tool and work, the process is known as
    A : Electrochemical machining
    B : Electro-discharge machining
    C : Ultrasonic machining
    D : None of these
    Q.no 9. A grinding ratio of 200 implies that the
    A : Grinding wheel wears 200 times the
    volume of the material removed
    B : grinding wheel wears 0.005 times
    the volume of the material removed
    C : aspect ratio of abrasive
    particles used in the
    grinding wheel is 200
    D : ratio of volume
    of abrasive particle
    to that of grinding
    wheel is 200
    Q.no 10. In oblique cutting of metals, the cutting edge of the tools is.
    A : Perpendicular to the workpiece
    B : Perpendicular to the direction of
    tool travel
    C : Parallel to the direction of
    tool travel
    D : Inclined at an angle less
    than 90 to the direction of tool travel
    Q.no 11. In Abrasive jet machining, work piece material of removed by which of
    the following means?
    A : Vaporization
    B : Electro plating
    C : Mechanical abrasion
    D : Corrosion
    Q.no 12. Lapping is an operation of_________
    A : Making a cone-shaped enlargement
    of the end of a hole
    B : Smoothing and squaring the
    surface around a hole
    C : Sizing and finishing a
    small diameter hole
    D : Producing a hole by
    removing metal along
    the circumference of
    a hollow cutting tool
    Q.no 13. Removing dull grains in order to make grinding wheel sharp is known as
    A : Loading
    B : Glazing
    C : Dressing
    D : Trueing
    Q.no 14. A grinding wheel is said to be of if it holds the abrasive grains
    more securely
    A : Soft grade
    B : Medium grade
    C : Hard grade
    D : very soft grade
    Q.no 15. In _
    operation, the chip thickness is minimum at the beginning of
    the
    A : conventional milling
    B : climb milling
    C : face milling
    D : end milling
    Q.no 16. Use of tail stock in cylindrical grinding machine is
    A : To drive the work piece
    B : To give feed to the wheel head
    C : To provide Speed to
    grinding wheel
    D : To support the
    other end of the
    work piece
    Q.no 17. A dynamo-meter is a device used for the measurement of
    A : Chip thickness ratio
    B : Forces during metal cutting
    C : Wear of the cutting tool
    D : Deflection of the cutting tool
    Q.no 18. Steady rest is
    A : An additional support provided for long jobs
    B : Used while turning unsymmetrical
    objects
    C : Used during Plain cutting only
    D : Used when a lathe is
    subject to vibrations
    Q.no 19. Which of the following come under the main components of ECM?
    A : Feed control system
    B : Work piece holding devices
    C : Electrolyte supply system
    D : All of the mentioned
    Q.no 20. The operation of making a cone-shaped enlargement of the end of a hole
    is known as
    A : counter-sinking
    B : Counter-boring
    C : Treppaning
    D : Spot facing
    Q.no 21. Feed control system is responsible for which action in ECM?
    A : Giving feed to tool
    B : Electrolyte supply
    C : Power supply
    D : None of the mentioned
    Q.no 22. Which of the following process have the lowest metal removal rate?
    A : Drilling
    B : Milling
    C : Reaming
    D : Honning
    Q.no 23. In which process the material is removed due to the action of abrasive
    grains?
    A : Electron Beam Machining (EBM)
    B : Ultrasonic Machining (USM)
    C : Laser Beam Machining (LBM)
    D : Electrical Discharge Machining (EDM)
    Q.no 24. The main purpose of a boring operation, as compared to drilling, is to
    A : Drill a hole
    B : Finish the drilled hole
    C : Correct the hole
    D : Enlarge the existing hole
    Q.no 25. Which of the following symbol’s range of alphabet represent soft grain in
    grinding wheel?
    A : A – H
    B : I – P
    C : Q – T
    D : T – Z
    Q.no 26. In Electro discharge machining, materials with low melting point have
    which type of material removal rate?
    A : Very low
    B : Low
    C : Medium
    D : High
    Q.no 27. The usual value of the point angle of a drill is
    A : 70°
    B : 100°
    C : 118°
    D : 130°
    Q.no 28. If a cutting tool is designed as 8°-14°-6°-8°-8°-19°-1mm what is the side
    Rake angle of the tool
    A : 14°
    B : 19°
    C : 6°
    D : 8°
    Q.no 29. The hardness of a grinding wheel is determined by the
    A : Hardness of abrasive grains
    B : Ability of the bond to retain abrasives
    C : Hardness of the bond
    D : Ability of the grinding wheel to penetrate the work piece
    Q.no 30. In centerless grinders, the regulating wheel is inclined at
    A : 0° to 8°
    B : 9° to 15°
    C : 16° to 20°
    D : 21° to 25°
    Q.no 31. In an orthogonal cutting the depth of cut is halved and the feed is double.
    If the chip thickness ratio is unaffected with the changed cutting conditions the
    actual chip thickness will be
    A : Doubled
    B : Halved
    C : Quadrupled
    D : unchanged
    Q.no 32. The swing diameter over the bed is………the height of the center
    measured from the bed of the lathe
    A : Equal to
    B : Twice
    C : Thrice
    D : One -half
    Q.no 33. Which of the following specified grinding wheel will have Aluminum
    oxide abrasive?
    A : Z 46 K 5 B 17
    B : C 600 K 5 B 17
    C : C 8 K 5 B 17
    D : A 80 K 5 B 17
    Q.no 34. Which of the following is not a media of energy transfer on which the
    advanced machining processes are classified?
    A : Reactive atmosphere
    B : Electrons
    C : Electrolyte
    D : Chemical ablation
    Q.no 35. Which of the following specified grinding wheel will have Silicon carbide
    abrasive?
    A : Z 46 K 5 B 17
    B : C 600 K 5 B 17
    C : A 8 K 5 B 17
    D : A 80 K 5 B 17
    Q.no 36. Grinding wheel is specified as “A 46 K 5 B 17”. Grain size of a wheel will be
    A : Coarse
    B : Medium
    C : Fine
    D : Very Fine
    Q.no 37. What is the value of abrasive grain flow rate in Abrasive jet machining?
    A : 0.1 – 2 g/min
    B : 3 – 20 g/min
    C : 30 – 56 g/min
    D : 68 – 85 g/min
    Q.no 38. Which one of the following is a hybrid non-conventional machinig
    process
    A : ECM
    B : EDM
    C : AWJM
    D : LBM
    Q.no 39. Which one of the following is not a hybrid non-conventional machinig
    process
    A : ECDM
    B : AWJM
    C : Ultrasonic assisted EDM
    D : EBM
    Q.no 40. Which one of the following process is worked on principle of Mechanical
    errosion
    A : AJM
    B : EDM
    C : ECM
    D : PAM
    Q.no 41. At high cutting speed, high temperature at tool-chip interface is caused
    by
  121. Heat generation rate increases with an increase in cutting speed
  122. Friction coefficient (μ) decreases with an increase in cutting speed
  123. The time required to transfer the heat decreases with an increase in cutting
    speed
  124. Localization of heat takes place with an increase in cutting speed
    A : 1,3 &4
    B : 1,2,3 &4
    C : 1,2,& 3
    D : 2,3 &4
    Q.no 42. It is desired to perform the operations like drilling, reaming, counterboring etc. on a work piece. Which of the following machine will be used?
    A : Sensitive drilling machine
    B : Radial drilling machine
    C : Gang drilling machine
    D : Multiple spindle drilling
    machine
    Q.no 43. The tail stock set over required to turn a taper on the entire length of a
    workpiece having diameters D and d is
    A : D-d / (2L)
    B : D-d /(L)
    C : D-d /(2)
    D : D-d
    Q.no 44. If n=number of divisions required, then find the number of holes to be
    moved in direct indexing
    A : 12/n
    B : 24/n
    C : 40/n
    D : 120/n
    Q.no 45. In machining operation, Uncut chip thickness t0= 0.8 mm and Chip
    thickness tc=1.2 mm. The correct option for the chip thickness ratio (r) is
    A : 0.4
    B : 0.66
    C : 0.84
    D : 1.5
    Q.no 46. What is the general life of Tungsten carbide material nozzle in AJM?
    A : 1 – 8 hrs
    B : 2 – 5 hrs
    C : 10 – 15 hrs
    D : 25 – 40 hrs
    Q.no 47. Frequency of tool’s oscillation in USM ranges between?
    A : 5-10 kHz
    B : 10-15 kHz
    C : 18-20 kHz
    D : 25-50 kHz
    Q.no 48. Amplitude of oscillation of tool in USM ranges between?
    A : 0.1-10 μm
    B : 10-40 μm
    C : 50-100 μm
    D : 100-1000 μm
    Q.no 49. Which one of the following process is worked on principle of electrolysis
    using eletrolyte
    A : EDM
    B : USM
    C : AJM
    D : ECM
    Q.no 50. In Abrasive jet machining, what may be the size of the abrasive grains
    used?
    A : 10 – 40 μm
    B : 50 – 100 μm
    C : 100 – 150 μm
    D : 200 – 300 μm
    Q.no 51. Time required for one complete cut on the piece of work 350 mm long
    and 50 mm in diameter. the cutting speed is 35 m/min and feed is 0.5 mm/rev.
    A : 2.1 Min
    B : 3.1 Min
    C : 3.5 Min
    D : 3.6 Min
    Q.no 52. In an orthogonal cutting if the feed is 1.25 mm/rev, the chip thickness
    after cutting is 2 mm, then the chip thickness ratio and shear angle (for rake
    angle 10 Degrees) respectively are
    A : 0.525, 36.62 Degrees
    B : 0.625, 34.62 Degrees
    C : 0.425, 36.42 Degrees
    D : 0.325, 34.62 Degrees
    Q.no 53. A shaft 1200 mm long has a taper of 1:100 for a length of 600 mm. The
    maximum diameter of the shaft to be 80 mm. Determine the minimum diameter
    of staft and amount of setover
    A : 78 mm & 22 mm
    B : 60 mm & 20 mm
    C : 65 mm & 15 mm
    D : 68 mm & 12 mm
    Q.no 54. Calculate the cutting speed of drilling operation when diameter of drill is
    10 mm and rotational speed of drill is 200 r.p.m.
    A : 6.283 m/min
    B : 3.142 m/min
    C : 8.362 m/min
    D : 10.216 m/min
    Q.no 55. In a drilling operation using a twist drill, the lip angle is 120 degree
    (standard), the spindle speed is 300 rpm, the feed is 0.2 mm/rev and the drill
    diameter is 10 mm,calculate machining time to drill a hole of 30 mm long ?
    A : 0.88 min
    B : 0.54 min
    C : 1.2 min
    D : 3 min
    Q.no 56. In the Taylor’s tool life equation, VT^n = C, the value of n=0.5. The tool life
    has a life of 180 minutes at a cutting speed of 18 m/min. If the tool life is reduced
    to 45 minutes, then the cutting speed will be
    A : 9 m/min
    B : 18 m/min
    C : 36 m/min
    D : 72 m/min
    Q.no 57. In Face Milling,What is the feed per tooth when the main axis spindle
    speed is 500 rpm, number of insert is 10, and table feed is 500mm/min
    A : 0.1 mm/tooth
    B : 0.7 mm/tooth
    C : 1 mm/tooth
    D : 7 mm/tooth
    Q.no 58. A tapered pin is to be prepared on a lathe machine. If the larger diameter
    is 90 mm, smaller diameter is 80 mm, length of the pin is 100 mm, Find the angle
    of taper at which the compound rest to be swivelled around
    A : 3 Degrees and 51 Minutes
    B : 2 Degrees and 15 Minutes
    C : 4 Degrees and 51 Minutes
    D : 2 Degrees and 51 Minutes
    Q.no 59. A mild steel material is being turn for 50 mm length with a feed rate of
    0.15 mm/rev and spindle speed of 1400 rpm. The time required to cut the material
    in miniutes is
    A : 0.13
    B : 0.23
    C : 0.33
    D : 0.43
    Q.no 60. The time required for machining a workpiece 50 mm dianeter 350 mm
    length, turn all over in four passes. The approach length is 12 mm, Overtravel
    10mm, the feed = 0.5 mm/rev, and cutting speed is 35m/min.
    A : 13.016 min
    B : 10.016 min
    C : 11.016 min
    D : 12.016 min
    Q.no 1. In a milling operation, two side milling cutters are mounted with a desired
    distance between them so that both sides of a workpiece can be milled
    simultaneously. This set up is called
    A : Gang milling
    B : Straddle milling
    C : Face milling
    D : Side milling
    Q.no 2. The angle between the face and flank of the single point cutting tool is
    known as
    A : Rake angle
    B : Clearance angle
    C : Lip angle
    D : Point angle
    Q.no 3. In centreless grinding, workpiece centre will be
    A : Above the line joining the two
    wheel centres
    B : Below the line joining the two
    wheel centres
    C : On the line joining the two
    wheel centres
    D : At the intersection of the
    line joining the wheel
    centres with the workpiece
    Q.no 4. Which of the following range of numbers represents dense structure of
    abrasives?
    A : 0-7
    B : 8-10
    C : 10-12
    D : 12-16
    Q.no 5. Twist drills are made of
    A : High speed steel
    B : Mild Steel
    C : Stainless steel
    D : High Carbon Steel
    Q.no 6. Which of the following material/s cannot be used for making of nozzle in
    Abrasive jet machining?
    A : Tungsten Carbide
    B : Steel alloy
    C : Sapphire
    D : Synthetic sapphire
    Q.no 7. Of the following properties of nozzle, which of them does not influence the
    MRR in AJM?
    A : Size
    B : Material
    C : Outside temperature
    D : Distance from work piece
    Q.no 8. How is material removed in Electro discharge machining?
    A : Melt and evaporate
    B : Corrode and break
    C : Mechanical erosion takes place
    D : None of the mentioned
    Q.no 9. A coarse grained grinding wheel is used to grind
    A : Soft and Hard materials
    B : Soft and ductile materials
    C : Hard Material
    D : Tough Material
    Q.no 10. Which of the following process has highest rate of metal removal
    A : Electric Discharge Machining (EDM)
    B : Electro-Chemical Machining (ECM)
    C : Ultrasonic Machining (USM)
    D : Laser Beam Machining (LBM)
    Q.no 11. Grinding wheel Tool signature consists of _ elements
    A : 4
    B : 5
    C : 6
    D : 7
    Q.no 12. The operation of producing grooves around the periphery of a cylindrical
    or conical workpiece is called
    A : profile milling
    B : Gang milling
    C : Saw milling
    D : Helical milling
    Q.no 13. If l=length of travel of the drill in mm, n=rpm of the drill, s= feed per
    revolution of the drill in mm. Then machining time can be given as__

    A : (ln)/s B : (ls)/n
    C : l/(n*s)
    D : (1+n)/s
    Q.no 14. As the abrasive flow rate increases, what happens to the volumetric
    removal rate in AJM?
    A : Increases
    B : Decreases
    C : Increase and then decrease
    D : Decrease and then increase
    Q.no 15. Discontinuous chips are formed during machine of
    A : Brittle metals
    B : Ductile metals
    C : Soft metals
    D : Tough metals
    Q.no 16. Cast iron during machining produces
    A : Continuous chips
    B : Dis-Continuous chips
    C : Continuous chips with
    built-up-edge
    D : None of these
    Q.no 17. In Abrasive jet machining, work piece material of removed by which of
    the following means?
    A : Vaporization
    B : Electro plating
    C : Mechanical abrasion
    D : Corrosion
    Q.no 18. Use of tail stock in cylindrical grinding machine is
    A : To drive the work piece
    B : To give feed to the wheel head
    C : To provide Speed to
    grinding wheel
    D : To support the
    other end of the
    work piece
    Q.no 19. Which of the following processes is generally applied for dentistry work
    like to drill fine holes of particular shape in teeth?
    A : Electrical Discharge Machining (EDM)
    B : Electron Beam Machining (EBM)
    C : Laser Beam Machining (LBM)
    D : Ultrasonic Machining (USM)
    Q.no 20. Carbide tipped tools usually have
    A : Negative rake angle
    B : Positive rake angle
    C : Any rake angle
    D : No rake angle
    Q.no 21. Tool life in turning will decrease by maximum extent if we double the….
    A : Depth of cut
    B : Feed
    C : Cutting Velocity
    D : Tool rake angle
    Q.no 22. If a cutting tool is designed as 8°-14°-6°-8°-8°-19°-1mm what is the side
    Rake angle of the tool
    A : 14°
    B : 19°
    C : 6°
    D : 8°
    Q.no 23. In centerless grinders, the regulating wheel is inclined at
    A : 0° to 8°
    B : 9° to 15°
    C : 16° to 20°
    D : 21° to 25°
    Q.no 24. The operation of making a cone-shaped enlargement of the end of a hole
    is known as
    A : counter-sinking
    B : Counter-boring
    C : Treppaning
    D : Spot facing
    Q.no 25. Shear angle varies with
    A : Cutting speed
    B : Feed
    C : Depth of cut
    D : Work piece materials and
    tool geometry
    Q.no 26. In which process the material is removed due to the action of abrasive
    grains?
    A : Electron Beam Machining (EBM)
    B : Ultrasonic Machining (USM)
    C : Laser Beam Machining (LBM)
    D : Electrical Discharge Machining (EDM)
    Q.no 27. A grinding ratio of 200 implies that the
    A : Grinding wheel wears 200 times the
    volume of the material removed
    B : grinding wheel wears 0.005 times
    the volume of the material removed
    C : aspect ratio of abrasive
    particles used in the
    grinding wheel is 200
    D : ratio of volume
    of abrasive particle
    to that of grinding
    wheel is 200
    Q.no 28. Which of the following symbol’s range of alphabet represent soft grain in
    grinding wheel?
    A : A – H
    B : I – P
    C : Q – T
    D : T – Z
    Q.no 29. Burnishing is a process of
    A : Cold working
    B : Hot working
    C : Press working
    D : Metal Cutting
    Q.no 30. Which of the following is a not a surface finishing process?
    A : Honing
    B : Buffing
    C : Lapping
    D : Turning
    Q.no 31. The swing diameter over the bed is………the height of the center
    measured from the bed of the lathe
    A : Equal to
    B : Twice
    C : Thrice
    D : One -half
    Q.no 32. Which of the following specified grinding wheel will have Aluminum
    oxide abrasive?
    A : Z 46 K 5 B 17
    B : C 600 K 5 B 17
    C : C 8 K 5 B 17
    D : A 80 K 5 B 17
    Q.no 33. What is the value of abrasive grain flow rate in Abrasive jet machining?
    A : 0.1 – 2 g/min
    B : 3 – 20 g/min
    C : 30 – 56 g/min
    D : 68 – 85 g/min
    Q.no 34. Which one of the following process is worked on principle of Mechanical
    errosion
    A : AJM
    B : EDM
    C : ECM
    D : PAM
    Q.no 35. Find the angle at which the compound rest should be set up to turn taper
    on the workpiece having a length of 20mm, larger diameter 45mm and the
    smaller diameter 30mm.
    A : 2 Degree 9 Minutes
    B : 3 Degree 9 Minutes
    C : 4 Degree 9 Minutes
    D : 5 Degree 9 Minutes
    Q.no 36. Grinding wheel is specified as “A 46 K 5 B 17”. Grain size of a wheel will be
    A : Coarse
    B : Medium
    C : Fine
    D : Very Fine
    Q.no 37. In AJM, surface roughness value will vary between which values?
    A : 0.01 – 0.10 μm
    B : 0.15 – 1.5 μm
    C : 2.0 – 5.0 μm
    D : 7.0 – 10.0 μm
    Q.no 38. Which one of the following is not a hybrid non-conventional machinig
    process
    A : ECDM
    B : AWJM
    C : Ultrasonic assisted EDM
    D : EBM
    Q.no 39. In an orthogonal cutting the depth of cut is halved and the feed is double.
    If the chip thickness ratio is unaffected with the changed cutting conditions the
    actual chip thickness will be
    A : Doubled
    B : Halved
    C : Quadrupled
    D : unchanged
    Q.no 40. Which one of the following is a hybrid non-conventional machinig
    process
    A : ECM
    B : EDM
    C : AWJM
    D : LBM
    Q.no 41. Which of the following specified grinding wheel will have Silicon carbide
    abrasive?
    A : Z 46 K 5 B 17
    B : C 600 K 5 B 17
    C : A 8 K 5 B 17
    D : A 80 K 5 B 17
    Q.no 42. Which of the following is not a media of energy transfer on which the
    advanced machining processes are classified?
    A : Reactive atmosphere
    B : Electrons
    C : Electrolyte
    D : Chemical ablation
    Q.no 43. The useful life of a HSS tool machining mild steel at18 m/min is 3 hr.
    Calculate the tool life when the tool operate at 24 m/min.
    A : 12 min
    B : 18 min
    C : 20 min
    D : 24 min
    Q.no 44. In Abrasive jet machining, what may be the size of the abrasive grains
    used?
    A : 10 – 40 μm
    B : 50 – 100 μm
    C : 100 – 150 μm
    D : 200 – 300 μm
    Q.no 45. At high cutting speed, high temperature at tool-chip interface is caused
    by
  125. Heat generation rate increases with an increase in cutting speed
  126. Friction coefficient (μ) decreases with an increase in cutting speed
  127. The time required to transfer the heat decreases with an increase in cutting
    speed
  128. Localization of heat takes place with an increase in cutting speed
    A : 1,3 &4
    B : 1,2,3 &4
    C : 1,2,& 3
    D : 2,3 &4
    Q.no 46. What is the general life of Tungsten carbide material nozzle in AJM?
    A : 1 – 8 hrs
    B : 2 – 5 hrs
    C : 10 – 15 hrs
    D : 25 – 40 hrs
    Q.no 47. Which one of the following process is worked on principle of electrolysis
    using eletrolyte
    A : EDM
    B : USM
    C : AJM
    D : ECM
    Q.no 48. In machining operation, Uncut chip thickness t0= 0.8 mm and Chip
    thickness tc=1.2 mm. The correct option for the chip thickness ratio (r) is
    A : 0.4
    B : 0.66
    C : 0.84
    D : 1.5
    Q.no 49. If n=number of divisions required, then find the number of holes to be
    moved in direct indexing
    A : 12/n
    B : 24/n
    C : 40/n
    D : 120/n
    Q.no 50. Frequency of tool’s oscillation in USM ranges between?
    A : 5-10 kHz
    B : 10-15 kHz
    C : 18-20 kHz
    D : 25-50 kHz
    Q.no 51. In an orthogonal cutting if the feed is 1.25 mm/rev, the chip thickness
    after cutting is 2 mm, then the chip thickness ratio and shear angle (for rake
    angle 10 Degrees) respectively are
    A : 0.525, 36.62 Degrees
    B : 0.625, 34.62 Degrees
    C : 0.425, 36.42 Degrees
    D : 0.325, 34.62 Degrees
    Q.no 52. Time required for one complete cut on the piece of work 350 mm long
    and 50 mm in diameter. the cutting speed is 35 m/min and feed is 0.5 mm/rev.
    A : 2.1 Min
    B : 3.1 Min
    C : 3.5 Min
    D : 3.6 Min
    Q.no 53. In face milling,What is the cutting speed when main axis spindle speed is
    350 rpm and the cutter diameter is 125 mm ?
    A : 137.4 m/min
    B : 142 m/min
    C : 150.2 m/min
    D : 130 m/min
    Q.no 54. In orthogonal turning of MS bar of 65 mm diameter machined on a lathe
    with a feed of 0.8 mm was used. A continuous chip of 1.4 mm thickness was
    removed at a rotational speed of 85 rpm. The Chip thickness ratio, Chip reduction
    ratio and Total length of the Chip in One Minute respectively is
    A : 0.5714, 1.75, 9918 mm
    B : 1.75, 0.5714, 9915 mm
    C : 1.75, 9999 mm, 05714,
    D : 57.14, 1.75, 9999 mm
    Q.no 55. In orthogonal cutting feed is 0.2 mm/rev, Chip thickness is 0.3 mm, Rake
    angle is 15 degrees. Then the shear plane angle in degrees is
    A : 27.9
    B : 17.9
    C : 37.9
    D : 47.9
    Q.no 56. Using the Taylor equation VT^n=c, calculate the percentage increase in
    tool life when the cutting speed is reduced is reduced by 50% (n=0.5 and c=400)
    A : 300%
    B : 400%
    C : 100%
    D : 200%
    Q.no 57. The time required for machining a workpiece 50 mm dianeter 350 mm
    length, turn all over in four passes. The approach length is 12 mm, Overtravel
    10mm, the feed = 0.5 mm/rev, and cutting speed is 35m/min.
    A : 13.016 min
    B : 10.016 min
    C : 11.016 min
    D : 12.016 min
    Q.no 58. In a drilling operation using a twist drill, the lip angle is 120 degree
    (standard), the spindle speed is 300 rpm, the feed is 0.2 mm/rev and the drill
    diameter is 10 mm,calculate machining time to drill a hole of 30 mm long ?
    A : 0.88 min
    B : 0.54 min
    C : 1.2 min
    D : 3 min
    Q.no 59. Calculate the cutting speed of drilling operation when diameter of drill is
    10 mm and rotational speed of drill is 200 r.p.m.
    A : 6.283 m/min
    B : 3.142 m/min
    C : 8.362 m/min
    D : 10.216 m/min
    Q.no 60. A shaft 1200 mm long has a taper of 1:100 for a length of 600 mm. The
    maximum diameter of the shaft to be 80 mm. Determine the minimum diameter
    of staft and amount of setover
    A : 78 mm & 22 mm
    B : 60 mm & 20 mm
    C : 65 mm & 15 mm
    D : 68 mm & 12 mm
    Q.no 1. Which type of adjustment required for gap voltages in ECM?
    A : Continuous adjustment
    B : Discontinuous adjustment
    C : Periodic adjustment
    D : All of the mentioned
    Q.no 2. When the metal is removed by erosion caused by rapidly recurring spark
    discharges between the tool and work, the process is known as
    A : Electrochemical machining
    B : Electro-discharge machining
    C : Ultrasonic machining
    D : None of these
    Q.no 3. The hardness of a grinding wheel is determined by the
    A : Hardness of abrasive grains
    B : Ability of the bond to retain abrasives
    C : Hardness of the bond
    D : Ability of the grinding wheel to penetrate the work piece
    Q.no 4. Which of the following process have the lowest metal removal rate?
    A : Drilling
    B : Milling
    C : Reaming
    D : Honning
    Q.no 5. Removing dull grains in order to make grinding wheel sharp is known as
    A : Loading
    B : Glazing
    C : Dressing
    D : Trueing
    Q.no 6. How is material removed in Electro discharge machining?
    A : Melt and evaporate
    B : Corrode and break
    C : Mechanical erosion takes place
    D : None of the mentioned
    Q.no 7. In Electro discharge machining, materials with low melting point have
    which type of material removal rate?
    A : Very low
    B : Low
    C : Medium
    D : High
    Q.no 8. The tool life is said to be over if
    A : Poor surface finish is obtained
    B : There is sudden increase in cutting
    forces and power consumption
    C : Overheating and fuming due to
    heat of friction starts
    D : All of the above
    Q.no 9. In _ operation, the chip thickness is minimum at the beginning of
    the
    A : conventional milling
    B : climb milling
    C : face milling
    D : end milling
    Q.no 10. In centreless grinding, workpiece centre will be
    A : Above the line joining the two
    wheel centres
    B : Below the line joining the two
    wheel centres
    C : On the line joining the two
    wheel centres
    D : At the intersection of the
    line joining the wheel
    centres with the workpiece
    Q.no 11. Feed control system is responsible for which action in ECM?
    A : Giving feed to tool
    B : Electrolyte supply
    C : Power supply
    D : None of the mentioned
    Q.no 12. In a milling operation, two side milling cutters are mounted with a
    desired distance between them so that both sides of a workpiece can be milled
    simultaneously. This set up is called
    A : Gang milling
    B : Straddle milling
    C : Face milling
    D : Side milling
    Q.no 13. A half nut is
    A : Damaged nut
    B : Nut manufactured in parts
    C : Nut with half the standard pitch
    D : Mechanism that locks the
    lathe carriage to the load
    screw for thread cutting
    Q.no 14. In oblique cutting of metals, the cutting edge of the tools is.
    A : Perpendicular to the workpiece
    B : Perpendicular to the direction of
    tool travel
    C : Parallel to the direction of
    tool travel
    D : Inclined at an angle less
    than 90 to the direction of tool travel
    Q.no 15. The main purpose of a boring operation, as compared to drilling, is to
    A : Drill a hole
    B : Finish the drilled hole
    C : Correct the hole
    D : Enlarge the existing hole
    Q.no 16. Which of the following come under the main components of ECM?
    A : Feed control system
    B : Work piece holding devices
    C : Electrolyte supply system
    D : All of the mentioned
    Q.no 17. For which of the following operations, broaching can be used?
    A : Threading
    B : Grinding
    C : Spline cutting
    D : Increasing the size of the
    existing hole for a certain
    length
    Q.no 18. The angle between the face and flank of the single point cutting tool is
    known as
    A : Rake angle
    B : Clearance angle
    C : Lip angle
    D : Point angle
    Q.no 19. A dynamo-meter is a device used for the measurement of
    A : Chip thickness ratio
    B : Forces during metal cutting
    C : Wear of the cutting tool
    D : Deflection of the cutting tool
    Q.no 20. The usual value of the point angle of a drill is
    A : 70°
    B : 100°
    C : 118°
    D : 130°
    Q.no 21. Which of the following material/s cannot be used for making of nozzle in
    Abrasive jet machining?
    A : Tungsten Carbide
    B : Steel alloy
    C : Sapphire
    D : Synthetic sapphire
    Q.no 22. Of the following properties of nozzle, which of them does not influence
    the MRR in AJM?
    A : Size
    B : Material
    C : Outside temperature
    D : Distance from work piece
    Q.no 23. Twist drills are made of
    A : High speed steel
    B : Mild Steel
    C : Stainless steel
    D : High Carbon Steel
    Q.no 24. Which of the following range of numbers represents dense structure of
    abrasives?
    A : 0-7
    B : 8-10
    C : 10-12
    D : 12-16
    Q.no 25. A grinding wheel is said to be of
    if it holds the abrasive grains
    more securely
    A : Soft grade
    B : Medium grade
    C : Hard grade
    D : very soft grade
    Q.no 26. Lapping is an operation of_________
    A : Making a cone-shaped enlargement
    of the end of a hole
    B : Smoothing and squaring the
    surface around a hole
    C : Sizing and finishing a
    small diameter hole
    D : Producing a hole by
    removing metal along
    the circumference of
    a hollow cutting tool
    Q.no 27. Which of the following method is not used for holding tool in drilling
    machine?
    A : by a sleeve
    B : by four jaw chucks
    C : by a socket
    D : By tool holder
    Q.no 28. Steady rest is
    A : An additional support provided for long jobs
    B : Used while turning unsymmetrical
    objects
    C : Used during Plain cutting only
    D : Used when a lathe is
    subject to vibrations
    Q.no 29. In which process the material is removed due to the action of abrasive
    grains?
    A : Electron Beam Machining (EBM)
    B : Ultrasonic Machining (USM)
    C : Laser Beam Machining (LBM)
    D : Electrical Discharge Machining (EDM)
    Q.no 30. Use of tail stock in cylindrical grinding machine is
    A : To drive the work piece
    B : To give feed to the wheel head
    C : To provide Speed to
    grinding wheel
    D : To support the
    other end of the
    work piece
    Q.no 31. Grinding wheel is specified as “A 46 K 5 B 17”. Grain size of a wheel will be
    A : Coarse
    B : Medium
    C : Fine
    D : Very Fine
    Q.no 32. Amplitude of oscillation of tool in USM ranges between?
    A : 0.1-10 μm
    B : 10-40 μm
    C : 50-100 μm
    D : 100-1000 μm
    Q.no 33. The swing diameter over the bed is………the height of the center
    measured from the bed of the lathe
    A : Equal to
    B : Twice
    C : Thrice
    D : One -half
    Q.no 34. What is the value of abrasive grain flow rate in Abrasive jet machining?
    A : 0.1 – 2 g/min
    B : 3 – 20 g/min
    C : 30 – 56 g/min
    D : 68 – 85 g/min
    Q.no 35. In AJM, surface roughness value will vary between which values?
    A : 0.01 – 0.10 μm
    B : 0.15 – 1.5 μm
    C : 2.0 – 5.0 μm
    D : 7.0 – 10.0 μm
    Q.no 36. Which one of the following process is worked on principle of Mechanical
    errosion
    A : AJM
    B : EDM
    C : ECM
    D : PAM
    Q.no 37. Which one of the following is not a hybrid non-conventional machinig
    process
    A : ECDM
    B : AWJM
    C : Ultrasonic assisted EDM
    D : EBM
    Q.no 38. The tail stock set over required to turn a taper on the entire length of a
    workpiece having diameters D and d is
    A : D-d / (2L)
    B : D-d /(L)
    C : D-d /(2)
    D : D-d
    Q.no 39. In an orthogonal cutting the depth of cut is halved and the feed is double.
    If the chip thickness ratio is unaffected with the changed cutting conditions the
    actual chip thickness will be
    A : Doubled
    B : Halved
    C : Quadrupled
    D : unchanged
    Q.no 40. Which of the following specified grinding wheel will have Aluminum
    oxide abrasive?
    A : Z 46 K 5 B 17
    B : C 600 K 5 B 17
    C : C 8 K 5 B 17
    D : A 80 K 5 B 17
    Q.no 41. It is desired to perform the operations like drilling, reaming, counterboring etc. on a work piece. Which of the following machine will be used?
    A : Sensitive drilling machine
    B : Radial drilling machine
    C : Gang drilling machine
    D : Multiple spindle drilling
    machine
    Q.no 42. Which one of the following is a hybrid non-conventional machinig
    process
    A : ECM
    B : EDM
    C : AWJM
    D : LBM
    Q.no 43. Find the angle at which the compound rest should be set up to turn taper
    on the workpiece having a length of 20mm, larger diameter 45mm and the
    smaller diameter 30mm.
    A : 2 Degree 9 Minutes
    B : 3 Degree 9 Minutes
    C : 4 Degree 9 Minutes
    D : 5 Degree 9 Minutes
    Q.no 44. If n=number of divisions required, then find the number of holes to be
    moved in direct indexing
    A : 12/n
    B : 24/n
    C : 40/n
    D : 120/n
    Q.no 45. Which one of the following process is worked on principle of electrolysis
    using eletrolyte
    A : EDM
    B : USM
    C : AJM
    D : ECM
    Q.no 46. Frequency of tool’s oscillation in USM ranges between?
    A : 5-10 kHz
    B : 10-15 kHz
    C : 18-20 kHz
    D : 25-50 kHz
    Q.no 47. In Abrasive jet machining, what may be the size of the abrasive grains
    used?
    A : 10 – 40 μm
    B : 50 – 100 μm
    C : 100 – 150 μm
    D : 200 – 300 μm
    Q.no 48. What is the general life of Tungsten carbide material nozzle in AJM?
    A : 1 – 8 hrs
    B : 2 – 5 hrs
    C : 10 – 15 hrs
    D : 25 – 40 hrs
    Q.no 49. At high cutting speed, high temperature at tool-chip interface is caused
    by
  129. Heat generation rate increases with an increase in cutting speed
  130. Friction coefficient (μ) decreases with an increase in cutting speed
  131. The time required to transfer the heat decreases with an increase in cutting
    speed
  132. Localization of heat takes place with an increase in cutting speed
    A : 1,3 &4
    B : 1,2,3 &4
    C : 1,2,& 3
    D : 2,3 &4
    Q.no 50. Which of the following is not a media of energy transfer on which the
    advanced machining processes are classified?
    A : Reactive atmosphere
    B : Electrons
    C : Electrolyte
    D : Chemical ablation
    Q.no 51. A mild steel material is being turn for 50 mm length with a feed rate of
    0.15 mm/rev and spindle speed of 1400 rpm. The time required to cut the material
    in miniutes is
    A : 0.13
    B : 0.23
    C : 0.33
    D : 0.43
    Q.no 52. In the Taylor’s tool life equation, VT^n = C, the value of n=0.5. The tool life
    has a life of 180 minutes at a cutting speed of 18 m/min. If the tool life is reduced
    to 45 minutes, then the cutting speed will be
    A : 9 m/min
    B : 18 m/min
    C : 36 m/min
    D : 72 m/min
    Q.no 53. A tapered pin is to be prepared on a lathe machine. If the larger diameter
    is 90 mm, smaller diameter is 80 mm, length of the pin is 100 mm, Find the angle
    of taper at which the compound rest to be swivelled around
    A : 3 Degrees and 51 Minutes
    B : 2 Degrees and 15 Minutes
    C : 4 Degrees and 51 Minutes
    D : 2 Degrees and 51 Minutes
    Q.no 54. In an orthogonal cutting if the feed is 1.25 mm/rev, the chip thickness
    after cutting is 2 mm, then the chip thickness ratio and shear angle (for rake
    angle 10 Degrees) respectively are
    A : 0.525, 36.62 Degrees
    B : 0.625, 34.62 Degrees
    C : 0.425, 36.42 Degrees
    D : 0.325, 34.62 Degrees
    Q.no 55. In Face Milling,What is the feed per tooth when the main axis spindle
    speed is 500 rpm, number of insert is 10, and table feed is 500mm/min
    A : 0.1 mm/tooth
    B : 0.7 mm/tooth
    C : 1 mm/tooth
    D : 7 mm/tooth
    Q.no 56. A shaft 1200 mm long has a taper of 1:100 for a length of 600 mm. The
    maximum diameter of the shaft to be 80 mm. Determine the minimum diameter
    of staft and amount of setover
    A : 78 mm & 22 mm
    B : 60 mm & 20 mm
    C : 65 mm & 15 mm
    D : 68 mm & 12 mm
    Q.no 57. In a drilling operation using a twist drill, the lip angle is 120 degree
    (standard), the spindle speed is 300 rpm, the feed is 0.2 mm/rev and the drill
    diameter is 10 mm,calculate machining time to drill a hole of 30 mm long ?
    A : 0.88 min
    B : 0.54 min
    C : 1.2 min
    D : 3 min
    Q.no 58. Time required for one complete cut on the piece of work 350 mm long
    and 50 mm in diameter. the cutting speed is 35 m/min and feed is 0.5 mm/rev.
    A : 2.1 Min
    B : 3.1 Min
    C : 3.5 Min
    D : 3.6 Min
    Q.no 59. Calculate the cutting speed of drilling operation when diameter of drill is
    10 mm and rotational speed of drill is 200 r.p.m.
    A : 6.283 m/min
    B : 3.142 m/min
    C : 8.362 m/min
    D : 10.216 m/min
    Q.no 60. In orthogonal cutting feed is 0.2 mm/rev, Chip thickness is 0.3 mm, Rake
    angle is 15 degrees. Then the shear plane angle in degrees is
    A : 27.9
    B : 17.9
    C : 37.9
    D : 47.9
    Q.no 1. Tool life in turning will decrease by maximum extent if we double the….
    A : Depth of cut
    B : Feed
    C : Cutting Velocity
    D : Tool rake angle
    Q.no 2. In centerless grinders, the regulating wheel is inclined at
    A : 0° to 8°
    B : 9° to 15°
    C : 16° to 20°
    D : 21° to 25°
    Q.no 3. As the abrasive flow rate increases, what happens to the volumetric
    removal rate in AJM?
    A : Increases
    B : Decreases
    C : Increase and then decrease
    D : Decrease and then increase
    Q.no 4. Which of the following processes is generally applied for dentistry work
    like to drill fine holes of particular shape in teeth?
    A : Electrical Discharge Machining (EDM)
    B : Electron Beam Machining (EBM)
    C : Laser Beam Machining (LBM)
    D : Ultrasonic Machining (USM)
    Q.no 5. If a cutting tool is designed as 8°-14°-6°-8°-8°-19°-1mm what is the side Rake
    angle of the tool
    A : 14°
    B : 19°
    C : 6°
    D : 8°
    Q.no 6. Grinding wheel Tool signature consists of _ elements
    A : 4
    B : 5
    C : 6
    D : 7
    Q.no 7. Shear angle varies with
    A : Cutting speed
    B : Feed
    C : Depth of cut
    D : Work piece materials and
    tool geometry
    Q.no 8. In Abrasive jet machining, work piece material of removed by which of
    the following means?
    A : Vaporization
    B : Electro plating
    C : Mechanical abrasion
    D : Corrosion
    Q.no 9. Which of the following symbol’s range of alphabet represent soft grain in
    grinding wheel?
    A : A – H
    B : I – P
    C : Q – T
    D : T – Z
    Q.no 10. Burnishing is a process of
    A : Cold working
    B : Hot working
    C : Press working
    D : Metal Cutting
    Q.no 11. Which type of adjustment required for gap voltages in ECM?
    A : Continuous adjustment
    B : Discontinuous adjustment
    C : Periodic adjustment
    D : All of the mentioned
    Q.no 12. Which of the following is a not a surface finishing process?
    A : Honing
    B : Buffing
    C : Lapping
    D : Turning
    Q.no 13. Cast iron during machining produces
    A : Continuous chips
    B : Dis-Continuous chips
    C : Continuous chips with
    built-up-edge
    D : None of these
    Q.no 14. A grinding ratio of 200 implies that the
    A : Grinding wheel wears 200 times the
    volume of the material removed
    B : grinding wheel wears 0.005 times
    the volume of the material removed
    C : aspect ratio of abrasive
    particles used in the
    grinding wheel is 200
    D : ratio of volume
    of abrasive particle
    to that of grinding
    wheel is 200
    Q.no 15. If l=length of travel of the drill in mm, n=rpm of the drill, s= feed per
    revolution of the drill in mm. Then machining time can be given as__

    A : (ln)/s B : (ls)/n
    C : l/(n*s)
    D : (1+n)/s
    Q.no 16. A coarse grained grinding wheel is used to grind
    A : Soft and Hard materials
    B : Soft and ductile materials
    C : Hard Material
    D : Tough Material
    Q.no 17. The operation of making a cone-shaped enlargement of the end of a hole
    is known as
    A : counter-sinking
    B : Counter-boring
    C : Treppaning
    D : Spot facing
    Q.no 18. Carbide tipped tools usually have
    A : Negative rake angle
    B : Positive rake angle
    C : Any rake angle
    D : No rake angle
    Q.no 19. Which of the following process has highest rate of metal removal
    A : Electric Discharge Machining (EDM)
    B : Electro-Chemical Machining (ECM)
    C : Ultrasonic Machining (USM)
    D : Laser Beam Machining (LBM)
    Q.no 20. The operation of producing grooves around the periphery of a cylindrical
    or conical workpiece is called
    A : profile milling
    B : Gang milling
    C : Saw milling
    D : Helical milling
    Q.no 21. Discontinuous chips are formed during machine of
    A : Brittle metals
    B : Ductile metals
    C : Soft metals
    D : Tough metals
    Q.no 22. Removing dull grains in order to make grinding wheel sharp is known as
    A : Loading
    B : Glazing
    C : Dressing
    D : Trueing
    Q.no 23. How is material removed in Electro discharge machining?
    A : Melt and evaporate
    B : Corrode and break
    C : Mechanical erosion takes place
    D : None of the mentioned
    Q.no 24. In oblique cutting of metals, the cutting edge of the tools is.
    A : Perpendicular to the workpiece
    B : Perpendicular to the direction of
    tool travel
    C : Parallel to the direction of
    tool travel
    D : Inclined at an angle less
    than 90 to the direction of tool travel
    Q.no 25. In __ operation, the chip thickness is minimum at the beginning of
    the
    A : conventional milling
    B : climb milling
    C : face milling
    D : end milling
    Q.no 26. For which of the following operations, broaching can be used?
    A : Threading
    B : Grinding
    C : Spline cutting
    D : Increasing the size of the
    existing hole for a certain
    length
    Q.no 27. Twist drills are made of
    A : High speed steel
    B : Mild Steel
    C : Stainless steel
    D : High Carbon Steel
    Q.no 28. Feed control system is responsible for which action in ECM?
    A : Giving feed to tool
    B : Electrolyte supply
    C : Power supply
    D : None of the mentioned
    Q.no 29. In Electro discharge machining, materials with low melting point have
    which type of material removal rate?
    A : Very low
    B : Low
    C : Medium
    D : High
    Q.no 30. The tool life is said to be over if
    A : Poor surface finish is obtained
    B : There is sudden increase in cutting
    forces and power consumption
    C : Overheating and fuming due to
    heat of friction starts
    D : All of the above
    Q.no 31. In machining operation, Uncut chip thickness t0= 0.8 mm and Chip
    thickness tc=1.2 mm. The correct option for the chip thickness ratio (r) is
    A : 0.4
    B : 0.66
    C : 0.84
    D : 1.5
    Q.no 32. Amplitude of oscillation of tool in USM ranges between?
    A : 0.1-10 μm
    B : 10-40 μm
    C : 50-100 μm
    D : 100-1000 μm
    Q.no 33. In AJM, surface roughness value will vary between which values?
    A : 0.01 – 0.10 μm
    B : 0.15 – 1.5 μm
    C : 2.0 – 5.0 μm
    D : 7.0 – 10.0 μm
    Q.no 34. What is the value of abrasive grain flow rate in Abrasive jet machining?
    A : 0.1 – 2 g/min
    B : 3 – 20 g/min
    C : 30 – 56 g/min
    D : 68 – 85 g/min
    Q.no 35. Grinding wheel is specified as “A 46 K 5 B 17”. Grain size of a wheel will be
    A : Coarse
    B : Medium
    C : Fine
    D : Very Fine
    Q.no 36. Which one of the following is not a hybrid non-conventional machinig
    process
    A : ECDM
    B : AWJM
    C : Ultrasonic assisted EDM
    D : EBM
    Q.no 37. Which of the following specified grinding wheel will have Silicon carbide
    abrasive?
    A : Z 46 K 5 B 17
    B : C 600 K 5 B 17
    C : A 8 K 5 B 17
    D : A 80 K 5 B 17
    Q.no 38. Which one of the following process is worked on principle of Mechanical
    errosion
    A : AJM
    B : EDM
    C : ECM
    D : PAM
    Q.no 39. The swing diameter over the bed is………the height of the center
    measured from the bed of the lathe
    A : Equal to
    B : Twice
    C : Thrice
    D : One -half
    Q.no 40. The useful life of a HSS tool machining mild steel at18 m/min is 3 hr.
    Calculate the tool life when the tool operate at 24 m/min.
    A : 12 min
    B : 18 min
    C : 20 min
    D : 24 min
    Q.no 41. Which one of the following process is worked on principle of electrolysis
    using eletrolyte
    A : EDM
    B : USM
    C : AJM
    D : ECM
    Q.no 42. Frequency of tool’s oscillation in USM ranges between?
    A : 5-10 kHz
    B : 10-15 kHz
    C : 18-20 kHz
    D : 25-50 kHz
    Q.no 43. Which of the following is not a media of energy transfer on which the
    advanced machining processes are classified?
    A : Reactive atmosphere
    B : Electrons
    C : Electrolyte
    D : Chemical ablation
    Q.no 44. In Abrasive jet machining, what may be the size of the abrasive grains
    used?
    A : 10 – 40 μm
    B : 50 – 100 μm
    C : 100 – 150 μm
    D : 200 – 300 μm
    Q.no 45. In an orthogonal cutting the depth of cut is halved and the feed is double.
    If the chip thickness ratio is unaffected with the changed cutting conditions the
    actual chip thickness will be
    A : Doubled
    B : Halved
    C : Quadrupled
    D : unchanged
    Q.no 46. At high cutting speed, high temperature at tool-chip interface is caused
    by
  133. Heat generation rate increases with an increase in cutting speed
  134. Friction coefficient (μ) decreases with an increase in cutting speed
  135. The time required to transfer the heat decreases with an increase in cutting
    speed
  136. Localization of heat takes place with an increase in cutting speed
    A : 1,3 &4
    B : 1,2,3 &4
    C : 1,2,& 3
    D : 2,3 &4
    Q.no 47. Which one of the following is a hybrid non-conventional machinig
    process
    A : ECM
    B : EDM
    C : AWJM
    D : LBM
    Q.no 48. It is desired to perform the operations like drilling, reaming, counterboring etc. on a work piece. Which of the following machine will be used?
    A : Sensitive drilling machine
    B : Radial drilling machine
    C : Gang drilling machine
    D : Multiple spindle drilling
    machine
    Q.no 49. The tail stock set over required to turn a taper on the entire length of a
    workpiece having diameters D and d is
    A : D-d / (2L)
    B : D-d /(L)
    C : D-d /(2)
    D : D-d
    Q.no 50. If n=number of divisions required, then find the number of holes to be
    moved in direct indexing
    A : 12/n
    B : 24/n
    C : 40/n
    D : 120/n
    Q.no 51. Using the Taylor equation VT^n=c, calculate the percentage increase in
    tool life when the cutting speed is reduced is reduced by 50% (n=0.5 and c=400)
    A : 300%
    B : 400%
    C : 100%
    D : 200%
    Q.no 52. In orthogonal turning of MS bar of 65 mm diameter machined on a lathe
    with a feed of 0.8 mm was used. A continuous chip of 1.4 mm thickness was
    removed at a rotational speed of 85 rpm. The Chip thickness ratio, Chip reduction
    ratio and Total length of the Chip in One Minute respectively is
    A : 0.5714, 1.75, 9918 mm
    B : 1.75, 0.5714, 9915 mm
    C : 1.75, 9999 mm, 05714,
    D : 57.14, 1.75, 9999 mm
    Q.no 53. In face milling,What is the cutting speed when main axis spindle speed is
    350 rpm and the cutter diameter is 125 mm ?
    A : 137.4 m/min
    B : 142 m/min
    C : 150.2 m/min
    D : 130 m/min
    Q.no 54. The time required for machining a workpiece 50 mm dianeter 350 mm
    length, turn all over in four passes. The approach length is 12 mm, Overtravel
    10mm, the feed = 0.5 mm/rev, and cutting speed is 35m/min.
    A : 13.016 min
    B : 10.016 min
    C : 11.016 min
    D : 12.016 min
    Q.no 55. A tapered pin is to be prepared on a lathe machine. If the larger diameter
    is 90 mm, smaller diameter is 80 mm, length of the pin is 100 mm, Find the angle
    of taper at which the compound rest to be swivelled around
    A : 3 Degrees and 51 Minutes
    B : 2 Degrees and 15 Minutes
    C : 4 Degrees and 51 Minutes
    D : 2 Degrees and 51 Minutes
    Q.no 56. In the Taylor’s tool life equation, VT^n = C, the value of n=0.5. The tool life
    has a life of 180 minutes at a cutting speed of 18 m/min. If the tool life is reduced
    to 45 minutes, then the cutting speed will be
    A : 9 m/min
    B : 18 m/min
    C : 36 m/min
    D : 72 m/min
    Q.no 57. In an orthogonal cutting if the feed is 1.25 mm/rev, the chip thickness
    after cutting is 2 mm, then the chip thickness ratio and shear angle (for rake
    angle 10 Degrees) respectively are
    A : 0.525, 36.62 Degrees
    B : 0.625, 34.62 Degrees
    C : 0.425, 36.42 Degrees
    D : 0.325, 34.62 Degrees
    Q.no 58. A mild steel material is being turn for 50 mm length with a feed rate of
    0.15 mm/rev and spindle speed of 1400 rpm. The time required to cut the material
    in miniutes is
    A : 0.13
    B : 0.23
    C : 0.33
    D : 0.43
    Q.no 59. Calculate the cutting speed of drilling operation when diameter of drill is
    10 mm and rotational speed of drill is 200 r.p.m.
    A : 6.283 m/min
    B : 3.142 m/min
    C : 8.362 m/min
    D : 10.216 m/min
    Q.no 60. In orthogonal cutting feed is 0.2 mm/rev, Chip thickness is 0.3 mm, Rake
    angle is 15 degrees. Then the shear plane angle in degrees is
    A : 27.9
    B : 17.9
    C : 37.9
    D : 47.9
    Q.no 1. Which of the following come under the main components of ECM?
    A : Feed control system
    B : Work piece holding devices
    C : Electrolyte supply system
    D : All of the mentioned
    Q.no 2. A dynamo-meter is a device used for the measurement of
    A : Chip thickness ratio
    B : Forces during metal cutting
    C : Wear of the cutting tool
    D : Deflection of the cutting tool
    Q.no 3. A half nut is
    A : Damaged nut
    B : Nut manufactured in parts
    C : Nut with half the standard pitch
    D : Mechanism that locks the
    lathe carriage to the load
    screw for thread cutting
    Q.no 4. The usual value of the point angle of a drill is
    A : 70°
    B : 100°
    C : 118°
    D : 130°
    Q.no 5. Which of the following range of numbers represents dense structure of
    abrasives?
    A : 0-7
    B : 8-10
    C : 10-12
    D : 12-16
    Q.no 6. The main purpose of a boring operation, as compared to drilling, is to
    A : Drill a hole
    B : Finish the drilled hole
    C : Correct the hole
    D : Enlarge the existing hole
    Q.no 7. If a cutting tool is designed as 8°-14°-6°-8°-8°-19°-1mm what is the side Rake
    angle of the tool
    A : 14°
    B : 19°
    C : 6°
    D : 8°
    Q.no 8. Steady rest is
    A : An additional support provided for long jobs
    B : Used while turning unsymmetrical
    objects
    C : Used during Plain cutting only
    D : Used when a lathe is
    subject to vibrations
    Q.no 9. Which of the following method is not used for holding tool in drilling
    machine?
    A : by a sleeve
    B : by four jaw chucks
    C : by a socket
    D : By tool holder
    Q.no 10. Which of the following process have the lowest metal removal rate?
    A : Drilling
    B : Milling
    C : Reaming
    D : Honning
    Q.no 11. Of the following properties of nozzle, which of them does not influence
    the MRR in AJM?
    A : Size
    B : Material
    C : Outside temperature
    D : Distance from work piece
    Q.no 12. Lapping is an operation of_________
    A : Making a cone-shaped enlargement
    of the end of a hole
    B : Smoothing and squaring the
    surface around a hole
    C : Sizing and finishing a
    small diameter hole
    D : Producing a hole by
    removing metal along
    the circumference of
    a hollow cutting tool
    Q.no 13. In centreless grinding, workpiece centre will be
    A : Above the line joining the two
    wheel centres
    B : Below the line joining the two
    wheel centres
    C : On the line joining the two
    wheel centres
    D : At the intersection of the
    line joining the wheel
    centres with the workpiece
    Q.no 14. As the abrasive flow rate increases, what happens to the volumetric
    removal rate in AJM?
    A : Increases
    B : Decreases
    C : Increase and then decrease
    D : Decrease and then increase
    Q.no 15. Which of the following material/s cannot be used for making of nozzle in
    Abrasive jet machining?
    A : Tungsten Carbide
    B : Steel alloy
    C : Sapphire
    D : Synthetic sapphire
    Q.no 16. In centerless grinders, the regulating wheel is inclined at
    A : 0° to 8°
    B : 9° to 15°
    C : 16° to 20°
    D : 21° to 25°
    Q.no 17. The hardness of a grinding wheel is determined by the
    A : Hardness of abrasive grains
    B : Ability of the bond to retain abrasives
    C : Hardness of the bond
    D : Ability of the grinding wheel to penetrate the work piece
    Q.no 18. Which of the following processes is generally applied for dentistry work
    like to drill fine holes of particular shape in teeth?
    A : Electrical Discharge Machining (EDM)
    B : Electron Beam Machining (EBM)
    C : Laser Beam Machining (LBM)
    D : Ultrasonic Machining (USM)
    Q.no 19. The angle between the face and flank of the single point cutting tool is
    known as
    A : Rake angle
    B : Clearance angle
    C : Lip angle
    D : Point angle
    Q.no 20. Use of tail stock in cylindrical grinding machine is
    A : To drive the work piece
    B : To give feed to the wheel head
    C : To provide Speed to
    grinding wheel
    D : To support the
    other end of the
    work piece
    Q.no 21. When the metal is removed by erosion caused by rapidly recurring spark
    discharges between the tool and work, the process is known as
    A : Electrochemical machining
    B : Electro-discharge machining
    C : Ultrasonic machining
    D : None of these
    Q.no 22. In a milling operation, two side milling cutters are mounted with a
    desired distance between them so that both sides of a workpiece can be milled
    simultaneously. This set up is called
    A : Gang milling
    B : Straddle milling
    C : Face milling
    D : Side milling

  137. Q.no 23. In which process the material is removed due to the action of abrasive
    grains?
    A : Electron Beam Machining (EBM)
    B : Ultrasonic Machining (USM)
    C : Laser Beam Machining (LBM)
    D : Electrical Discharge Machining (EDM)
    Q.no 24. A grinding wheel is said to be of _ if it holds the abrasive grains
    more securely
    A : Soft grade
    B : Medium grade
    C : Hard grade
    D : very soft grade
    Q.no 25. Tool life in turning will decrease by maximum extent if we double the….
    A : Depth of cut
    B : Feed
    C : Cutting Velocity
    D : Tool rake angle
    Q.no 26. Which of the following is a not a surface finishing process?
    A : Honing
    B : Buffing
    C : Lapping
    D : Turning
    Q.no 27. Cast iron during machining produces
    A : Continuous chips
    B : Dis-Continuous chips
    C : Continuous chips with
    built-up-edge
    D : None of these
    Q.no 28. The operation of making a cone-shaped enlargement of the end of a hole
    is known as
    A : counter-sinking
    B : Counter-boring
    C : Treppaning
    D : Spot facing
    Q.no 29. A coarse grained grinding wheel is used to grind
    A : Soft and Hard materials
    B : Soft and ductile materials
    C : Hard Material
    D : Tough Material
    Q.no 30. Burnishing is a process of
    A : Cold working
    B : Hot working
    C : Press working
    D : Metal Cutting
    Q.no 31. What is the general life of Tungsten carbide material nozzle in AJM?
    A : 1 – 8 hrs
    B : 2 – 5 hrs
    C : 10 – 15 hrs
    D : 25 – 40 hrs
    Q.no 32. What is the value of abrasive grain flow rate in Abrasive jet machining?
    A : 0.1 – 2 g/min
    B : 3 – 20 g/min
    C : 30 – 56 g/min
    D : 68 – 85 g/min
    Q.no 33. Grinding wheel is specified as “A 46 K 5 B 17”. Grain size of a wheel will be
    A : Coarse
    B : Medium
    C : Fine
    D : Very Fine
    Q.no 34. In AJM, surface roughness value will vary between which values?
    A : 0.01 – 0.10 μm
    B : 0.15 – 1.5 μm
    C : 2.0 – 5.0 μm
    D : 7.0 – 10.0 μm
    Q.no 35. Amplitude of oscillation of tool in USM ranges between?
    A : 0.1-10 μm
    B : 10-40 μm
    C : 50-100 μm
    D : 100-1000 μm
    Q.no 36. Find the angle at which the compound rest should be set up to turn taper
    on the workpiece having a length of 20mm, larger diameter 45mm and the
    smaller diameter 30mm.
    A : 2 Degree 9 Minutes
    B : 3 Degree 9 Minutes
    C : 4 Degree 9 Minutes
    D : 5 Degree 9 Minutes
    Q.no 37. Which of the following specified grinding wheel will have Silicon carbide
    abrasive?
    A : Z 46 K 5 B 17
    B : C 600 K 5 B 17
    C : A 8 K 5 B 17
    D : A 80 K 5 B 17
    Q.no 38. Which one of the following is not a hybrid non-conventional machinig
    process
    A : ECDM
    B : AWJM
    C : Ultrasonic assisted EDM
    D : EBM
    Q.no 39. Which of the following specified grinding wheel will have Aluminum
    oxide abrasive?
    A : Z 46 K 5 B 17
    B : C 600 K 5 B 17
    C : C 8 K 5 B 17
    D : A 80 K 5 B 17
    Q.no 40. In machining operation, Uncut chip thickness t0= 0.8 mm and Chip
    thickness tc=1.2 mm. The correct option for the chip thickness ratio (r) is
    A : 0.4
    B : 0.66
    C : 0.84
    D : 1.5
    Q.no 41. The tail stock set over required to turn a taper on the entire length of a
    workpiece having diameters D and d is
    A : D-d / (2L)
    B : D-d /(L)
    C : D-d /(2)
    D : D-d
    Q.no 42. In Abrasive jet machining, what may be the size of the abrasive grains
    used?
    A : 10 – 40 μm
    B : 50 – 100 μm
    C : 100 – 150 μm
    D : 200 – 300 μm
    Q.no 43. Which one of the following is a hybrid non-conventional machinig
    process
    A : ECM
    B : EDM
    C : AWJM
    D : LBM
    Q.no 44. At high cutting speed, high temperature at tool-chip interface is caused
    by
  138. Heat generation rate increases with an increase in cutting speed
  139. Friction coefficient (μ) decreases with an increase in cutting speed
  140. The time required to transfer the heat decreases with an increase in cutting
    speed
  141. Localization of heat takes place with an increase in cutting speed
    A : 1,3 &4
    B : 1,2,3 &4
    C : 1,2,& 3
    D : 2,3 &4
    Q.no 45. If n=number of divisions required, then find the number of holes to be
    moved in direct indexing
    A : 12/n
    B : 24/n
    C : 40/n
    D : 120/n
    Q.no 46. The useful life of a HSS tool machining mild steel at18 m/min is 3 hr.
    Calculate the tool life when the tool operate at 24 m/min.
    A : 12 min
    B : 18 min
    C : 20 min
    D : 24 min
    Q.no 47. The swing diameter over the bed is………the height of the center
    measured from the bed of the lathe
    A : Equal to
    B : Twice
    C : Thrice
    D : One -half
    Q.no 48. Which one of the following process is worked on principle of electrolysis
    using eletrolyte
    A : EDM
    B : USM
    C : AJM
    D : ECM
    Q.no 49. Which of the following is not a media of energy transfer on which the
    advanced machining processes are classified?
    A : Reactive atmosphere
    B : Electrons
    C : Electrolyte
    D : Chemical ablation
    Q.no 50. It is desired to perform the operations like drilling, reaming, counterboring etc. on a work piece. Which of the following machine will be used?
    A : Sensitive drilling machine
    B : Radial drilling machine
    C : Gang drilling machine
    D : Multiple spindle drilling
    machine
    Q.no 51. Time required for one complete cut on the piece of work 350 mm long
    and 50 mm in diameter. the cutting speed is 35 m/min and feed is 0.5 mm/rev.
    A : 2.1 Min
    B : 3.1 Min
    C : 3.5 Min
    D : 3.6 Min
    Q.no 52. In Face Milling,What is the feed per tooth when the main axis spindle
    speed is 500 rpm, number of insert is 10, and table feed is 500mm/min
    A : 0.1 mm/tooth
    B : 0.7 mm/tooth
    C : 1 mm/tooth
    D : 7 mm/tooth
    Q.no 53. In orthogonal turning of MS bar of 65 mm diameter machined on a lathe
    with a feed of 0.8 mm was used. A continuous chip of 1.4 mm thickness was
    removed at a rotational speed of 85 rpm. The Chip thickness ratio, Chip reduction
    ratio and Total length of the Chip in One Minute respectively is
    A : 0.5714, 1.75, 9918 mm
    B : 1.75, 0.5714, 9915 mm
    C : 1.75, 9999 mm, 05714,
    D : 57.14, 1.75, 9999 mm
    Q.no 54. A shaft 1200 mm long has a taper of 1:100 for a length of 600 mm. The
    maximum diameter of the shaft to be 80 mm. Determine the minimum diameter
    of staft and amount of setover
    A : 78 mm & 22 mm
    B : 60 mm & 20 mm
    C : 65 mm & 15 mm
    D : 68 mm & 12 mm
    Q.no 55. Using the Taylor equation VT^n=c, calculate the percentage increase in
    tool life when the cutting speed is reduced is reduced by 50% (n=0.5 and c=400)
    A : 300%
    B : 400%
    C : 100%
    D : 200%
    Q.no 56. In a drilling operation using a twist drill, the lip angle is 120 degree
    (standard), the spindle speed is 300 rpm, the feed is 0.2 mm/rev and the drill
    diameter is 10 mm,calculate machining time to drill a hole of 30 mm long ?
    A : 0.88 min
    B : 0.54 min
    C : 1.2 min
    D : 3 min
    Q.no 57. In orthogonal cutting feed is 0.2 mm/rev, Chip thickness is 0.3 mm, Rake
    angle is 15 degrees. Then the shear plane angle in degrees is
    A : 27.9
    B : 17.9
    C : 37.9
    D : 47.9
    Q.no 58. A tapered pin is to be prepared on a lathe machine. If the larger diameter
    is 90 mm, smaller diameter is 80 mm, length of the pin is 100 mm, Find the angle
    of taper at which the compound rest to be swivelled around
    A : 3 Degrees and 51 Minutes
    B : 2 Degrees and 15 Minutes
    C : 4 Degrees and 51 Minutes
    D : 2 Degrees and 51 Minutes
    Q.no 59. Calculate the cutting speed of drilling operation when diameter of drill is
    10 mm and rotational speed of drill is 200 r.p.m.
    A : 6.283 m/min
    B : 3.142 m/min
    C : 8.362 m/min
    D : 10.216 m/min
    Q.no 60. In face milling,What is the cutting speed when main axis spindle speed is
    350 rpm and the cutter diameter is 125 mm ?
    A : 137.4 m/min
    B : 142 m/min
    C : 150.2 m/min
    D : 130 m/min

MANUFACTURING PROCESS II- TE Mechanical Engineering

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