Iti fitter multiple choice questions screw thread and fasteners chapter for iti job, iti fitter job, iti fitter govt job

Iti fitter multiple choice questions screw thread  and fasteners chapter for iti job, iti fitter job, iti fitter govt job


Iti fitter multiple choice questions screw thread and fasteners chapter important questions with answers For all types iti fitter competitive exams,iti job, iti fitter job, iti fitter govt job. 



1. The key is subjected to
(a) shear stress     (b) compression stress     (c) tensile stress     (d) twisting stress 

(a) shear stress 

2. A standard taper given on a taper key is 
(a) 1:50     (b) 1:100     (c) 1:48     (d) 1:96

(b) 1:100

3. The pitch diameter of the external screw thread is checked by
(a) thread ring gauge      (b) screw pitch gauge    (c) vernier caliper     (d) screw thread micrometer 

(d) screw thread micrometer

4. Which one of the following screw thread forms has an included angle of 29° between the flanks of thread
(a) acme thread      (b) B. A. thread    (c)  knuckle thread  (d) buttress thread   

(a) acme thread

5. In a single start thread 
(a) lead and pitch are equal     (b) lead is double the pitch     (c) pitch is double the lead     (d) lead is half the pitch 

(a) lead and pitch are equal

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7. What type of thread are suitable for lead screw of machine tools 
(a) british association thread     (b) Whitworth screw thread     (c) acme threads     (d) Square threads 

(c) acme threads

8. What type of threads are suitable for small precision components and measuring gauge 
(a) british association thread     (b) Whitworth screw thread     (c) acme threads     (d) Square threads

(a) british association thread

9. The angle of I.S. thread is
(a) 29°      (b) 47°     (c) 50°     (d) 60°

(d) 60°

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10. The pitch of 3 start thread is the lead divided by 
(a) 1     (b) 2     (c) 3     (d) 4

(c) 3

11. The distance through which a screw thread advances axially in one turn is called 
(a) lead of thread    (b) pitch of thread      (c)  diameter of thread    (d) depth of thread 

(a) lead of thread

12. In silver brazing the flux is used for
(a) chemically cleaning the base metal     (b) removing the impurities from the weld     (c) allowing the molten metal to flow easily     (d) all the above

(d) all the above

13. Silver brazing is used for
(a) joining electrical parts requiring high electrical conductivity     (b) joining dissimilar metal     (c) brazing of tungsten carbide tips     (d) all the above

(d) all the above

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14. A nut having raised height and slots on the raised portion is called
(a) slotted nut     (b) sawn nut     (c) hole nut pin  (d) Castle nut 

(d) Castle nut

15. Screw thread are produced without metal removing by a process called as
(a)  thread chasing      (b) thread cutting   (c) tapping     (d) thread rolling

(d) thread rolling

16. Which one of the following threads, is used on mechanical jack
(a) acme     (b) square     (c) buttress     (d) B.S.F.

(b) square

17. A key is a device used to
(a) start the machine     (b) fasten the mating parts     (c) control the machine   (d) stop the machine

(b) fasten the mating parts

18. B.S.F. screw thread are generally used for
(a) electrical goods    (b) ordinary bolts and nuts      (c) vice spindle    (d) lathe lead screw

(a) electrical goods

19. Semi permanent fasteners can
(a) be separated by light heating     (b) be easily separated     (c) not be separated easily     (d) not be separated by any means

(a) be separated by light heating

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20. For fitting a saddle key
(a) no keyway is cut on the shaft     (b) long keyway is cut on the shaft     (c) the key is fitted by means of screw     (d) the lower portion of the key is machined in a curved form

(a) no keyway is cut on the shaft

21. The shape of a woodruff key is
(a) round with taper     (b) in the form of a segment of a circle     (c) rectangular     (d) square with taper

(b) in the form of a segment of a circle

22. The depth of B.A. screw thread is
(a) 0.64 P     (b) 0.7035 P     (c) 0.6 P     (d) 0.61 P

(c) 0.6 P

23. B.S.F. screw thread have the included angle of
(a) 30°      (b) 45°     (c) 55°     (d) 60°

(c) 55°

24. A rivet is specified by the diameter of its
(a) shank    (b) none of the above  (c) head      (d) tail 

(a) shank

25. Which one of the following operations can be used for removing burrs formed at the edge of the hole while drilling
(a) countersinking     (b) counter boring     (c) spot facing     (d) chamfering by filing

(b) counter boring

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26. The root of ISO metric thread is
(a) flat     (b) round     (c) sharp corner     (d) none of the above

(b) round

27. A drilled hole after tapping is called
(a) core hole     (b) chain hole     (c) tapped hole     (d) reamed hole

(c) tapped hole

28. A screw thread is formed on a cylindrical surface by cutting
(a) helical grooves     (b) V-grooves     (c) Square grooves      (d) half round grooves

(a) helical grooves

29. The upper portion of a hexagonal nut is chamfered at an angle of
(a) 75°     (b) 60°     (c) 45°     (d) 30°

(d) 30°

30. Which type of key is used for coupling a pulley with a shaft
(a) taper key     (b) woodruff key     (c) gib head key      (d) flat saddle key

(c) gib head key

31. Which one of the following key is used on automobile shaft
(a)  taper key  (b) gib head key       (c) hollow saddle key   (d) woodruff key

(c) woodruff key 

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32. For riveting aluminium sheets, the material of rivet should be
(a) aluminium     (b) copper     (c) brass     (d) wrought-iron

(a) aluminium

33. Which one of the following rivets is used for general structural work
(a) pan head rivet     (b) snap head rivet     (c) flat head rivet     (d) countersunk head rivet

(b) snap head rivet

34. The handle of thread plug gauge is made from ebonite material for
(a) easy manufacturing   (b) easy handling   (c) reducing the cost       (d) reducing the weight

(d) reducing the weight

35. The shape of the thread in the "No Go" end of a thread snap gauge is
(a) beveled     (b) truncated     (c) taper     (d) sharp

(b) truncated

36. The shape of the frame of thread snap gauge is in the form of
(a) Square   (b) round       (c) 'Y' type     (d) 'C' type

(d) 'C' type

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37. A tab washer is used for
(a)  locking the nuts (b) self locking        (c) avoiding vibration

(a) locking the nuts

38. Spring washers are used under nuts to prevent
(a) damage to the bolt     (b) damage to the nut     (c) damage to the job vibration     (d) slackness of nuts due to

(d) slackness of nuts due to

39. The element used as a main constituent along with lead for soft soldering is
(a) tin     (b) copper     (c) silver     (d) aluminium

(a) tin

40. Which one of the following joining methods results in the fusion of the parent metal
(a) riveting     (b) welding     (c) brazing     (d) soldering

(b) welding

41. The ratio between the difference in diameter of taper and its length is known as
(a) concentricity      (b) conicity     (c) convexity     (d) concavity

(c) convexity

42. The half included angle of morse standard taper is
(a) 3° 15'     (b) 3°     (c) 2° 55'     (d) 1° 29'

(d) 1° 29'

43. Which one of the following screw thread elements is NOT check with the thread ring gauge
(a)  profile   (b) pitch     (c) helix angle     (d) pitch diameter

(d) pitch diameter

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44. Morse standard taper is one of the internationally accepted standard taper which is available in numbers from
(a) 1 to 7     (b) 1 to 8     (c) 0 to 7     (d) 0 to 8

(c) 0 to 7

45. Which one of the following thread forms on bolts and nuts is meant for general fastening purposes
(a) 'V' thread     (b) square thread     (c) knuckles threads     (d) acme threads

(a) 'V' thread

46. Leakage should be checked before using oxy acetylene welding equipment. Which type of water can be used on the acetylene connection
(a) salt water     (b) soap water     (c) hard water     (d) fresh water

(b) soap water

47. Which one of the following is permanent fastening
(a) screw fastening     (b) fastening with bolt and nut     (c) brazing     (d) welding

(d) welding

48. In a threaded assembly the contact between the male and female threads takes place on the
(a) pitches     (b) flanks     (c) crests     (d) roots

(b) flanks

49. The filler metal used during brazing is an alloy of
(a) copper and zinc     (b) lead and copper     (c) copper and tin     (d) zinc and lead

(a) copper and zinc

50. Which among the following nuts is used for hand vice
(a) check nut     (b) wing nut     (c) thumb nut     (d) hexagonal nut

(b) wing nut

51. A split pin is used for locking purposes in
(a) Castle nut     (b) square nut     (c) check nut     (d) flanged nut

(a) Castle nut

52. While threading on lathe, the carriage is moved by means of
(a) hand wheel    (b) lead screw      (c) feed rod     (d) gear train on a rack

(a) lead screw

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