Machine Design
The ultimate strength of steel in tension in comparison to shear is in the ratio of

0.042361111111111
0.12638888888889
0.085416666666667
0.084027777777778

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

Remains constant at all speeds
Is maximum at zero speed and decreases monotonically with increase in speed
Becomes minimum at an optimum speed and then increases with further increase in speed
Is minimum at zero speed and increases monotonically with increase in speed

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