Theory of Machine
Bifilar suspension method is used to find the

Moment of inertia of the body
Periodic time of the body
Frequency of vibration of the body
Angular acceleration of the body

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Theory of Machine
The maximum fluctuation of speed is the

Sum of maximum and minimum speeds
Difference of minimum fluctuation of speed and the mean speed
Difference of the maximum and minimum speeds
Variations of speed above and below the mean resisting torque line

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