Critical speed of a shaft with a disc supported in between is equal to the natural frequency of the system in:

Longitudinal vibrations provided the shaft is vertical.

Critical speed of a shaft with a disc supported in between is equal to

1.	Critical speed of a shaft with a disc supported in between is equal to the natural frequency of the system in:
A.	Transverse vibrations
B.	Torsional vibrations
C.	Longitudinal vibrations
D.	Longitudinal vibrations provided the shaft is vertical.
Answer» B. Torsional vibrations

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Critical speed of a shaft with a disc supported in between is equal to the natural frequency of the system in:

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