Theory of Machine
When a body is subjected to transverse vibrations, the stress induced in a body will be

Bending stress
Tensile stress
Compressive stress
Shear stress

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Theory of Machine
Cam angle 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
Moved by the cam from the instant the follower begins to rise, till it reaches its highest position
Through which, the cam rotates during the period in which the follower remains in the highest position

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