1. A Rivet is specified by
Ans: shank diameter
2. The rivet head used for boiler plate riveting is usually
Ans: Snap head
3. A lap joint is always in ........ shear.
Ans: Single
4. The largest diameter of an external or internal screw thread is known as
Ans: major diameter
5. A screw is specified by it-
Ans: Major diameter
6. A railway carriage couplings have-
Ans: Knuckle Threads
7. The washer is generally specified by its-
Ans: Hole diameter
8. A locking device extensively used in Automobile Industry is a-
Ans: Castle nut
9. The eye bolts are used for
Ans: Lifting and transporting heavy machines
10. The Taper on a rectangular sunk key is
Ans: 1 in 100
11. The standard length of one shaft is
a) 5 m b) 6 m c) 7 m d) All of the above
Ans: d (All of the above)
12. The width of the pulley should be-
Ans: greater than the width of belt
13. The included angle for the V - belt is usually
Ans: 30º - 40º
14. The wire ropes make contact at
Ans: bottom of groove of the pulley
15. Which one of the following is a positive drive?
a) Crossed flat belt drive b) Rope drive c) V. belt drive d) Chain drive
Ans: d (Chain drive)
16. The cross-section of the Fly Wheel arms is usually
Ans: Elliptical
17. The ball bearings are usually made from-
Ans: Chrome nickel steel
18. Taper usually provided on cotter is-
Ans: 1 in 24
19. A bench vice has following type of threads
Ans: Acme Threads
20. In V-belt drive, belt touches-
Ans: at sides only
21. Anti - Friction bearings are-
Ans: ball and roller bearings
22. The top surface of thread is known at
Ans: Crest
23. The included angle of Acme threads
Ans: 29°
24. The included angle of British Standard Whitworth (B.S.W.) thread is-
Ans: 55°
25. A stud is a cylindrical shank having-
Ans: both ends threaded
26. A key is subjected to crushing and-
Ans: shearing
27. Keys are generally made from
Ans: Mild Steel
28. The key which is semi circular shape-
Ans: Woodruff Key
29. A saddle key is used for
Ans: heavy loads
30. The difference between the high and low limit of size is
Ans: tolerance
