Theory of Machine
The stress induced in a body will be shear stress, when it is subjected to

Torsional vibrations
None of these
Longitudinal vibrations
Transverse vibrations

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Theory of Machine
Angle of descent of cam is defined as the angle

Of rotation of the cam for a definite displacement of the follower
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
Moved by the cam from the instant the follower begins to rise, till it reaches its highest position

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