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1. |
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 |
Answer» E. | |