Theory of Machine
To transmit power from one rotating shaft to another whose axes are neither parallel nor intersecting, use?

Spur gear
Worm gear
Bevel gear
Spiral gear

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

Of rotation of the cam for a definite displacement of the follower
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
Moved by the cam from beginning of ascent to the termination of descent

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