Machine Design
The property of a material which enables it to be drawn into wires with the application of a tensile force, is called

Ductility
Malleability
Elasticity
Plasticity

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

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

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Machine Design
In case of V belt drive

The belt should touch the bottom of groove in the pulley
The belt should not touch the sides of groove in the pulley
The belt should not touch the bottom of groove in the pulley
None of these

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