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Machine Design

Q1:

In an oil lubricated journal bearing, the coefficient of friction between the journal and the bearing

A remains constant at all speeds

B is minimum at zero speed and increases monotonically with increase in speed

C is maximum at zero speed and decreases monotonically with increase in speed

D becomes minimum at an optimum speed and then increases with further increase in speed

ANS:D - becomes minimum at an optimum speed and then increases with further increase in speed

Explanation: No answer description is available.



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