TURNER FITTER MACHINIST IMPORTANT MCQ FOR CBT

1. In centreless grinders, the maximum angular adjustment of the regulating wheel is
A. 5°
B. 10°
C. 15°
D. 20°

2. 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

3. In a single point tool, the angle between the surface of the flank immediately below the point and a line drawn from the point perpendicular to the base, is known as
A. side relief angle
B. end relief angle
C. back rake angle
D. side rake angle

4. A set of eight form relieved milling cutters for each module is provided to enable cutting of gears of different
A. materials
B. types of gears
C. number of teeth
D. width of gears

5. Crater wear is usually found while machining brittle materials.
A. Correct
B. Incorrect

6. The grinding operaion is a
A. shaping operation
B. forming operation
C. surface finishing operation
D. dressing operation

7. The guideways are of
A. flat type
B. V-type
C. dovetail type
D. any one of these

8. The snag grinding is done
A. to produce good surface finish and high degree of accuracy
B. to remove considerable amount of metal without regard to accuracy of the finished surface
C. to grind exterior cylindrical surfaces
D. any one of the above

9. The velocity of tool along the tool face is known as
A. shear velocity
B. chip velocity
C. cutting velocity
D. mean velocity

10. The purpose of jigs and fixtures is to
A. increase machining accuracy
B. facilitate interchangeability
C. decrease expenditure on quality control
D. all of these

11. In hot machining, solid carbide tools are preferred over high speed steel tools.
A. True
B. False

12. The trade name of a non-ferrous cast alloy composed of cobalt, chromium and tungsten is called
A. ceramic
B. stellite
C. diamond
D. cemented carbide

13. 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

14. A coarse grained grinding wheel is used to grind
A. hard and brittle materials
B. soft and ductile materials
C. hard and ductile materials
D. soft and brittle materials

15. The abrasive slurry used in ultra-sonic machining contains fine particles of
A. aluminium oxide
B. boron carbide
C. silicon carbide
D. any one of these

16. High speed steel cutting tools operate at cutting speeds __________ than carbon steel tools.
A. 2 to 3 times lower
B. 2 to 3 times higher
C. 5 to 8 times higher
D. 8 to 20 times higher

17. The factor which affects the tool life is
A. tool geometry
B. cutting speed
C. feed rate
D. all of these

18. In lapping operaion, the amount of metal removed is
A. 0.005 to 0.01 mm
B. 0.01 to 0.1 mm
C. 0.05 to 0.1 mm
D. 0.5 to 1 mm

19. The cutting force in up milling __________ per tooth movement of the cutter.
A. is zero
B. is maximum
C. decreases from maximum to zero
D. increases from zero to maximum

20. The height of each tooth of a broach is
A. same throughout
B. in progressively decreasing order
C. in progressively increasing order
D. none of these