Theory of Machine
A shaft has an attached disc at the centre of its length. The disc has its centre of gravity located at a distance of 2 mm from the axis of the shaft. When the shaft is allowed to vibrate in its natural bow-shaped mode, it has a frequency of vibration of 10 rad/s. When the shaft is rotated at 300 r.p.m., it will whirl with a radius of

2.22 mm
2.50 mm
2 mm
3.0 mm

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Theory of Machine
Pitch point on a cam is

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

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