Theory of Machine
Longitudinal vibrations are said to occur when the particles of a body moves

Perpendicular to its axis
None of these
In a circle about its axis
Parallel to its axis

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Theory of Machine
Effort of a governor is the

Mean force exerted at the sleeve for maximum equilibrium speed
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

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