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31.

If screw threads are to be used in a situation involving high stresses in one direction only, the types of threads suitable for this would be

A.	BSW	B.	BA
C.	Square	D.	Acme
E.	Buttress

32.

The function of a washer is

A.	To fill the axial gas	B.	To provide cushioning effect
C.	To absorb shocks and vibrations	D.	To provide bearing area
E.	None of the above

33.

Washer are generally specified by

A.	Thickness	B.	Outer diameter
C.	Central hole diameter	D.	Mean diameter
E.	(A) and (C) above

34.

Eye bolts are used for

A.	Locking devices	B.	Transmission of power
C.	Absorption of shocks and vibrations	D.	Lifting and transporting heavy pieces
E.	None of the above

35.

A motor weighing 2000 kg is to be lifted by wrought iron eye bolt, screwed into the frame. Clioose-single bolt out of the following:

A.	M 12 coarse threads	B.	M 30 coarse threads
C.	M 12 fine threads	D.	M 30 Fine threads
E.	None as wrought iron is brittle

36.

A stud has

A.	Cylindrical head	B.	Counter shunk head
C.	Slotted head	D.	Allen head
E.	Both ends threaded

37.

The pitch of 24 mm diameter metric threads would be

A.	1 mm	B.	2 mm
C.	3 mm	D.	5 mm
E.	6 mm

38.

In case of ball bearing

A.	Inner race should be harder than balls	B.	Outer race should be harder than balls
C.	Inner race should harder than outer race	D.	Inner race, outer race and balls should be equally hardened
E.	Only cage should be hardened

39.

In case of biaxial stress system when a member is subjected to tensile stresses in two perpendicular directions the maximum shear stress in case of mild steel occurs on a plane inclined at

A.	22	B.	30?
C.	45?	D.	67
E.	75?

40.

The casing of a water pump is generally

A.	Made of soft material	B.	Made of hard material
C.	Made of chilled cast iron for water resistance	D.	Made of non-ferrous materials
E.	None of the above