Manufacturing & Production Engineering 1000+ MCQ with answer for CEED

1. In a plain milling cutter, the chip space between the back of one tooth and the face of the next tooth is called
A. Face
B. Fillet
C. Gash
D. Land
Answer : C

2. If a gas metal arc process uses a low arc voltage and the arc is continuously interrupted as the molten electrode metal fills up the arc gap is known as
A. ARC
B. Short ARC
C. ARC length
D. ARC blow
Answer : B

3. The cutting speed is minimum while machining _________ with a high speed steel tool.
A. Cast iron
B. Mild steel
C. Brass
D. Aluminium
Answer : A

4. The operation in which oil is permeated into the pores of a powder metallurgy product is known as
A. Mixing
B. Sintering
C. Impregnation
D. Infiltration
Answer : C

5. 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
Answer : B

6. Threading is an operation of
A. Smoothing and squaring the surface around a hole
B. Sizing and finishing a small diameter hole
C. Producing a hole by removing metal along the circumference of a hollow cutting tool
D. Cutting helical grooves on the external cylindrical surface
Answer : D

7. The rake angle required to machine brass by high speed steel tool is
A. 0°
B. 10°
C. 20°
D. 100°
Answer : A

8. Match the items of List-I (Equipment) with the items of List-II (Process) and select the correct answer using the given codes.

List-I (Equipment)	List-II (Process)
P. Hot Chamber Machine	1. Cleaning
Q. Muller	2. Core making
R. Dielectric Baker	3. Die casting
S. Sand Blaster	4. Annealing
.	5. Sand mixing

A. P-2, Q-1, R-4, S-5
B. P-4, Q-2, R-3, S-5
C. P-4, Q-5, R-1, S-2
D. P-3, Q-5, R-2, S-1
Answer : D

9. Discontinuous chips are formed during machining of
A. Brittle metals
B. Ductile metals
C. Hard metals
D. Soft metals
Answer : A

10. The lathe spindles are usually made hollow and provided with
A. Internal taper
B. External taper
C. Internal and external taper
D. No taper
Answer : A

11. The swing diameter over the bed is ________ the height of the centre measured from the bed of the lathe.
A. Equal to
B. Twice
C. Thrice
D. One-half
Answer : B

12. As the cutting speed increases, the tool cutting forces
A. Remain constant
B. Increases
C. Decreases
D. First increases and then decreases
Answer : C

13. In DC arc welding, if leads are arranged in work as Negative pole of the welding arc and electrode as Positive pole of the welding arc, the arrangement is known as
A. Fusion
B. Reverse polarity
C. Forward welding
D. Direct polarity
Answer : B

14. Carbide tipped tools usually have
A. Negative rake angle
B. Positive rake angle
C. Any rake angle
D. No rake angle
Answer : A

15. The method of centre less grinding used to produce taper is
A. In-feed grinding
B. Through feed grinding
C. End feed grinding
D. Any one of these
Answer : C

16. If the tearing efficiency of a riveted joint is 50%, then ratio of rivet hole diameter to the pitch of rivets is
A. 0.20
B. 0.30
C. 0.50
D. 0.60
Answer : C

17. A __________ grinding wheel is used to grind soft materials.
A. Course grained
B. Medium grained
C. Fine grained
D. None of these
Answer : A

18. The type of reamer used for reaming operation in a blind hole, is
A. Straight fluted reamer
B. Left hand spiral fluted reamer
C. Right hand spiral fluted reamer
D. Any one of these
Answer : C

19. Internal gears can be made by
A. Hobbing
B. Shaping with pinion cutter
C. Shaping with rack cutter
D. Milling
Answer : B

20. Hot rolling of mild steel is carried out
A. At recrystallization temperature
B. Between 100?C to 150?C
C. Between recrystallization temperature
D. Above recrystallization temperature
Answer : D

21. The grade of grinding wheel depends upon
A. Hardness of the material being ground
B. Speed of wheel and work
C. Condition of grinding machine
D. All of these
Answer : D

22. Crater wear leads to
A. Increase in cutting temperature
B. Weakening of tool
C. Friction and cutting forces
D. All of these
Answer : D

23. A jig is defined as a device which
A. Holds and locates a workpiece and guides and controls one or more cutting tools
B. Holds and locates a workpiece during an inspection or for a manufacturing operation
C. Is used to check the accuracy of workpiece
D. All of the above
Answer : A

24. A push broach as compared to pull broach
A. Has less number of teeth
B. Is short and stocky
C. Removes less material for each pass of the tool
D. All of the above
Answer : D

25. Side rake angle of a single point cutting tool is the angle
A. By which the face of the tool is inclined towards back
B. By which the face of the tool is inclined sideways
C. Between the surface of the flank immediately below the point and a plane at right angles to the centre line of the point of the tool
D. Between the surface of the flank immediately below the point and a line drawn from the point perpendicular to the base
Answer : B

26. In metal machining, the zone where the heat is generated due to friction between the moving chip and the tool face, is called
A. Friction zone
B. Work-tool contact zone
C. Shear zone
D. None of these
Answer : A

27. In down milling, the thickness of chip is
A. Minimum at the beginning of the cut and maximum at the end of the cut
B. Maximum at the beginning of the cut and minimum at the end of the cut
C. Uniform throughout the cut
D. None of these
Answer : B

28. For turning small taper on long workpiece, the suitable method is
A. By a form tool
B. By setting over the tail stock
C. By a taper turning attachment
D. By swivelling the compound rest
Answer : B

29. Which of the following arc welding processes does not use consumable electrodes?
A. GMAW
B. GTAW
C. Submerged Arc Welding
D. None of these
Answer : B

30. 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
Answer : D

31. The rake angle of a single point cutting tool corresponds to _________ of a twist drill.
A. Lip clearance angle
B. Helix angle
C. Point angle
D. Chisel edge angle
Answer : B

32. It is required to cut screw threads of 2 mm pitch on a lathe. The lead screw has a pitch of 6 mm. If the spindle speed is 60 r.p.m., then the speed of lead screw will be
A. 10 r.p.m.
B. 20 r.p.m.
C. 120 r.p.m.
D. 180 r.p.m.
Answer : B

33. During the execution of a CNC part program block NO20 GO2 X45.0 Y25.0 R5.0 ; the type of tool motion will be
A. Circular Interpolation ? clockwise
B. Circular Interpolation ? counter clockwise
C. Linear Interpolation
D. Rapid feed
Answer : A

34. Which of the following statement is correct for orthogonal cutting system?
A. The cutting edge of the tool is perpendicular to the direction of tool travel.
B. The cutting edge clears the width of the workpiece on either ends.
C. The chip flows over the tool face and the direction of the chip flow velocity is normal to the cutting edge.
D. All of the above
Answer : D

35. The trade name of a nonferrous cast alloy composed of cobalt, chromium and tungsten is called
A. Ceramic
B. Stellite
C. Diamond
D. Cemented carbide
Answer : B

36. The broaching operation in which either the work or the tool moves across the other, is known as
A. Pull broaching
B. Push broaching
C. Surface broaching
D. Continuous broaching
Answer : C

37. The lip angle of a single point tool is usually
A. 20° to 40°
B. 40° to 60°
C. 60° to 80°
D. None of these
Answer : C

38. In a metal arc welding process, a gas metal arc welding with magnetized flux is used and can be done in all the positions i.e. flat position, vertical position or inclined position.
A. Globular transfer
B. Spray transfer
C. GMAW practice
D. Dip transfer
Answer : C

39. Which of the following statement is wrong?
A. The larger side rake angle produces chipping.
B. The smaller rake angle produces excessive wear and deformation in tool.
C. The side cutting edge angle (less than 15°) increases tool life.
D. The increase in nose radius decreases tool life.
Answer : D

40. 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 wheel
Answer : D

41. The abrasive recommended for grinding materials of high tensile strength is
A. Silicon carbide
B. Aluminium oxide
C. Sand stone
D. Diamond
Answer : B

42. Which of the following process is used for preparing parts having large curved surfaces and thin sections?
A. Hot machining
B. Ultrasonic machining
C. ECM process
D. Chemical milling
Answer : D

43. Ceramic tools are fixed to tool body by
A. Soldering
B. Brazing
C. Welding
D. Clamping
Answer : B

44. In which of the following milling machine, the table can be tilted in a vertical plane by providing a swivel arrangement at the knee?
A. Universal milling machine
B. Plain milling machine
C. Universal milling machine
D. Hand milling machine
Answer : C

45. In a particular type of welding, flux is prepared in the form of a coarse powder and granulated flux is spread over the joint. What is this type of welding process called?
A. Electric arc welding
B. Submerged arc welding
C. MIG welding
D. TIG welding
Answer : B

46. A drill considered as a cutting tool having zero rake, is known as a
A. Flat drill
B. Straight fluted drill
C. Parallel shank twist drill
D. Tapered shank twist drill
Answer : B

47. If the flame of the welding torch is directed towards the progress of welding, then what will you call the welding technique?
A. Forehand welding
B. Flux cored ARC welding
C. Electro slag welding
D. Pulsed spray welding
Answer : A

48. What is the welding defect caused due to improper control and poor removal of slog between passes called?
A. Mismatch
B. Under fill
C. Crack
D. Porosity
Answer : B

49. The cutting tool in a milling machine is mounted on
A. Spindle
B. Arbor
C. Column
D. Knee
Answer : B

50. Ultrasonic machining is best suited for
A. Tool steels
B. Sintered carbides
C. Glass
D. All of these
Answer : D