# Mechanical Engineering - Theory of machines

### Exercise

"Act well your part; there all honor lies."
- Alexander Pope
46.

The frictional torque transmitted in a multi-collared shaft is same as that of a single collared shaft.

 A. Right B. Wrong

47.

In order to give the primary balance of the reciprocating parts of a multi-cylinder in-line engines,

 A. the algebraic sum of the primary forces must be equal to zero B. the algebraic sum of the couples about any point in the plane of the primary forces must be equal to zero C. both (a) and (b) D. none of these

48.

The gear train usually employed in clocks is a

 A. simple gear train B. reverted gear train C. sun and planet gear D. differential gear

49.

A mass of 1 kg is attached to the end of a spring with a stiffness of 0.7 N/mm. The critical damping coefficient of this system is

 A. 1.4 N-s/m B. 18.52 N-s/m C. 52.92 N-s/m D. 529.2 N-s/m

50.

The cam follower generally used in automobile engines is

 A. knife edge follower B. fiat faced follower C. spherical faced follower D. roller follower