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

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

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Theory of Machine
Power of a governor is the

Work-done at the sleeve for maximum equilibrium speed
Mean force exerted at the sleeve for a given percentage change of speed
None of these
Mean force exerted at the sleeve for maximum equilibrium speed

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