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19.

In standard taper roller bearings, the angle of taper of outer raceway is

A.	5°	B.	8°
C.	15°	D.	25°

20.

In V-belt drive, belt touches

A.	at bottom	B.	at sides only
C.	both at bottom and sides	D.	could touch anywhere

21.

Oil in journal bearing should be applied at the point where load is

A.	nil or lightest	B.	maximum
C.	average	D.	any one of the above

22.

Spring index is

A.	ratio of coil diameter to wire diameter	B.	load required to produce unit deflection
C.	its capability of storing energy	D.	indication of quality of spring

23.

Spring stiffness is

A.	ratio of coil diameter to wire diameter	B.	load required to produce unit deflection
C.	its capability of storing energy	D.	its ability to absorb shocks

24.

The connecting rod bolts are tightened up so that tightening stress

A.	is just sufficient to hold parts together	B.	approaches yield point
C.	is 50% of yield point	D.	is about yield point divided by safety factor

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