## Theory of Machine Angle of dwell of cam is defined as the angle

Of rotation of the cam for definite displacement of the follower
Moved by the cam from the instant the follower begins to rise, till it reaches its highest position
During which the follower returns to its initial position
Through which the cam rotates during the period in which the follower remains in the highest position

## Theory of Machine The maximum fluctuation of energy is the

Difference between the maximum and minimum energies
Sum of the maximum and minimum energies
Ratio of the mean resisting torque to the work-done per cycle
Variations of energy above and below the mean resisting torque line

## Theory of Machine The advantage of the piston valve over the slide valve is that in the former case

The pressure developed being high provides tight sealing
Power absorbed is less
Both wear and power absorbed are low
Wear is less

## Theory of Machine Kinematic pairs are those which have two elements that

Have surface contact
Permit relative motion
Are held together
Have line contact

(1/2). I ω ωP
(1/2).Iω²
Iω²
I ω ωP

## Theory of Machine The frictional torque transmitted in a conical pivot bearing, considering uniform wear, is

(3/4) μ W R cosecα
(1/2) μ W R cosecα
μ W R cosecα
(2/3) μ W R cosecα