2017 FEBRUARY FITTER THEORY SEMESTER - III

2017 FEBRUARY   FITTER THEORY SEMESTER - III

1. Which one is not part of

centre lathe?

a)  Saddle 

b)  Feed rod

c)  Arber

d)  Lead screw

Answer:- c)  Arber

2. Lower Critical Temperature

of High carbon Sieel while

hardening-
a)  560 °C

b)  723 °C

c)  850 °c

d)  960 °C

Answer:- b)  723 °C

3. The sliding surface of lathe

bed are -

a. Flame hardened

c. Normalized

b. Case hardened

d. Tempered

Answer:- a. Flame hardened

4. Advantages of four Jaw

Chuck are -

a. Irregular work pieces can be

     held easily

b. It has more gripping power

c. Large diameter can be held

by reversing jaw

d.  All of these

Answer:- a. Irregular work pieces can be

     held easily

5. The internal part of the shaft

of bearing is called

a. Journal

b. Cage

c. Outer Race

d. Inner race

Answer:- a. Journal

6. Bearing suitable for heavy

   radial load-

a. Thrust bearing

b. Self-Aligning ball Bearing

c. Ball Bearing

d. Roller Bearing

Answer:- b. Self-Aligning ball Bearing

7. Bearing assembled in two

parts in special plumber block-

a. Adjustable Slide Bearing

b. Solid Bearing

c.   Split Bearing

d. Self-Aligning

Ball Bearing

Answer:- c.   Split Bearing

8. Bearings are used for- -

a. To move shaft freely

b. To support shaft in a fixed

    position

c.  To guide shaft

d) All of these

Answer:- d) All of these

9. The material for Indenter of

 mechanical surface measuring

machine-
a. Cast Steel

b. Diamond

c. Carbide

d. Tool Steel

Answer:- b. Diamond

10. Which one of the following

tool angle is provided to avoid

 rubbing of the body of the tool

with the work piece?

a. Rake angle

b. Helix angle

c. Clearance angle

d. None of these

Answer:- c. Clearance angle

11. Pattern made by the movement

of Cutting tool on the Work Surface

 is called-
a. Roughness

b. Smoothness

c. Waviness
d. Surface Texture

Answer:- d. Surface Texture

12. Abrasive used for lapping

of Gauges- Alurninium Oxide

a. Boron carbide

b. Silicon carbide

c. Aluminium Oxide

d. Diamond

Answer:- a. Boron carbide

13. The movement of Honing

machine while honing is ...

a. Vertical

b. Reciprocating

c. Vertical and Reciprocating

d. Horizontal

Answer:- c. Vertical and Reciprocating

14. In which metallic coating,

chromium powder is used-

a. Cladding

b. Sherardising

c. Calorising

d. Chromising

Answer:- d. Chromising

15. Hard abrasive for lapping is-

a. Diamond

b. Boron carbide

c. Silicon Carbide

d. Aluminium Oxide

Answer:- a. Diamond

16. Which one of the following governs

the selection of feed when

turning on work piece?

a. Tool geometry

b. Surface finish required

c. Type of coolant required

d. All of these

Answer:- a. Tool geometry

17. Centred drilling should be done at -

a. Higher rpm with a slower feed

b. Higher rprn with a higher feed

c. Slower rpm with a higher feed

d. Slower rpm with a slower feed

Answer:- a. Higher rpm with a slower feed

18. For setting of tool for threading

 it is aligned with the work by -

a. Try square

b. Centre gauge

c. Thread plug gauge

d. Template

Answer:- d. Template

19. Which one of Ihe reason for torn

threads while thread cutting on lathe?

a. Blum tool

 b. Heavy depth cut

c. Insufficient side clearance

d  Any one of These

Answer:- d  Any one of These

20. Nut dimension is represented by-

a. Mead of Bolt

b. Pitch Diameter of Bolt

c. Nominal Diameter of Bolt

d. Core Diameter of Bolt

Answer:- c. Nominal Diameter of Bolt

21. Speed while knurling should be -

a. Low

b. High

c. Intermittent
d. None of these

Answer:- a. Low

22. Workshop gauges keep at the temperature of-

a. 10 °C

b. 20 °C

c. 15 °C
d. 25 °C

Answer:- b. 20 °C

23. Gauge has GO and NO GO at its one end-

a. Fixed type plug gauge

b. Adjustable plug gauge

c. Progressive plug gauge

d. Double ended plug gauge

Answer:- c. Progressive plug gauge

24. Main purpose of Screw pitch gauge-

a. To check limits of screw thread                                       

b. To check distance between crest to crest of screw thread
c  To check minor diameter of screw thread

d. To check major diameter of screw thread

Answer:- b. To check distance between crest to crest of screw thread

25. Taper ring gauge is used for-

a. To check inner taper

b. To check outer taper

c. To check internal thread

d. To check outer thread

Answer:- b. To check outer taper

26 Clearance between the mating parts is measured by-

a. Feeler Gauge

c. Dial Gauge

b.Caliper gauge

d. No Go Gauge

Answer:- a. Feeler Gauge

27 According to Indian Standard, set of slip gauges has-

a. 71 pieces

b. 81 pieces

c. 112 pieces

d. 120 pieces

Answer:- c. 112 pieces

28. Shape of warding files are-

a. Square c

b. Rectangular

c. Half Round

d. Round

Answer:- b. Rectangular

29.  Taper made on the nose of headstock spindle of lathe-

a. Morse taper

b. Jarno Taper

C. Metric Taper

d. Pin Taper

Answer:- a. Morse taper

30. A sine bar is available in standard sizes which one of these is not a standard size?
a. 100 mm

b. 200 mm

c. 250 mm

d. 300 mm

Answer:- a. 100 mm

31. While normalizing the steel should be cooled?

a. In still air to room temperature

b. In oil

c. By forced air

d.  ln water

Answer:- a. In still air to room temperature

32. Cutting tool, is affected by ,

a. Job metal 

b. Tool metal

c . Depth of cut

d.  All of these

Answer:- d.  All of these

33. According to BIS. front clearance angle is put in the range of-
a. 4° to 8°
b. 2° to 5°

c. 6°  to 10°
d. More than 10°

Answer:- c. 6°  to 10°

34. Tip of tip tool is made up of-

a. Cobalt Steel   

b. Tungsten

c. Both (a) A (b)

d. None of these

Answer:- c. Both (a) A (b)

35. Lead screw is made up of-

a. High Speed Steel

b. Carbon Steel

c. Mild Steel

d. None of these

Answer:- b. Carbon Steel

36. Point angle of Morse Standard Taper is-

a. 30°

b. 45°

c 15°

d. 60°

Answer:- d. 60°

37. If the side rack is less on tool top, the effects are-

a. Smooth Cutting

b. Improper Cutting  

c. No effect on cutting

d. None of these

Answer:- b. Improper Cutting 

38. File has circular teeth on both edges-

a. Warding Files

b. Pillar Files

c. Mill Files

d. Crossing Files

Answer:- c. Mill Files

39. Shape of barrette file is ......
a.   Rectangular

b.  Square

c. Circular

d. Triangular

Answer:- d. Triangular

40. According lo BIS the width of Flat Scrapper-

a. 10 to 20 mm

b. 20 to 30 mm

c.  12 to 15 mm

d.  12 to 20 mm

Answer:- b. 20 to 30 mm

41. According to Size. 80 number drill is-

a. Smaller one

b. Bigger one

c. Middle one

d. None of these

Answer:- a. Smaller one

42. According to BIS, slip gauges are divided in..............grades

a.  1

b.  2

c.  3

d.  4

Answer:- d.  4

43. Angle of B S F Thread is-

a. 55

b. 60

c. 45°

d. 30°

Answer:- a. 55

44. Templates are made up of-

a. Carbon Steel

b. Too! Steel

c.  Mild Steel

d. High speed Steel

Answer:- c.  Mild Steel

45. Depth of Indian Standard Thread is indicated by-

a. 0.6403P

b. 0.6304P

c.  0.6134P

d. 0.6143P

Answer:- c.  0.6134P

46. In M 10 x 1.5.10 represents-

a. Metric Thread

b. Pitch of Thread

c.  Depth of Thread

d   Diameter of Thread

Answer:- d   Diameter of Thread

47. In above question. 1.5 represents-

a. Metric Thread 

b. Pitch of Thread

c. Depth of Thread

d.  Diameter of Thread

Answer:- b. Pitch of Thread

48. Capacity of lathe is expressed by- ,

a. Horse power & chuck diameter

b. Swing and distance between centres

c. Bed length & spindle speed

d. Tool post size & lathe travels

Answer:- b. Swing and distance between centres

49 For smaller precision components, suitable thread is-

a. BSW

b. BA

c. Acme

d. Square

Answer:- b. BA

50. Angle of Indian Standard Thread is-

a.  55°

b.  60°

c.  45°

d.  30°

Answer:- b.  60°