Theory of Machine
The component of the acceleration, perpendicular to the velocity of the particle, at the given instant is called

None of these
Radial component
Tangential component
Coriolis component

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Theory of Machine
In a four bar chain or quadric cycle chain

Each of the four pairs is a turning pair
Three are turning pairs and one is a sliding pair
One is a turning pair and three are sliding pairs
Two are turning pairs and two are sliding pairs

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

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

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