Theory of Machine
When the particles of a body moves perpendicular to its axis, then the body is said to have

Torsional vibration
Transverse vibration
Longitudinal vibration
None of these

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Theory of Machine
Pitch point on a cam is

The point on cam pitch curve having the minimum pressure angle
The point on cam pitch curve having the maximum pressure angle
Any point on pitch circle
Any point on pitch curve

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