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Theory of machines

Q1: A slender shaft supported on two bearings at its ends carries a disc with an eccentricity e from the axis of rotation. The critical speed of the shaft is Nc. If the disc is replaced by a second one of same mass but mounted with an eccentricily 2 e, then the critical speed of the shaft in the second case is

A Nc/2

B Nc/2

C Nc

D 2 Nc

ANS:A - Nc/2

Explanation: No answer description is available.



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