Theory of Machine
In a four-bar chain it is required to give an oscillatory motion to the follower for a continuous rotation of the crank. For the lengths of 50 mm of crank and 70 mm of the follower, determine theoretical maximum length of coupler. The distance between fixed pivots of crank and followers is

45 mm
95 mm
Slightly less than 95 mm
Slightly more than 95 mm

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Theory of Machine
A body is said to be under forced vibrations, when

There is a reduction in amplitude after every cycle of vibration
A body vibrates under the influence of external force
No external force acts on a body, after giving it an initial displacement
None of these

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Theory of Machine
Effort of a governor is the

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

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