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

Plasticity
Elasticity
Malleability
Ductility

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Machine Design
Crowning on pulley helps

To keep the belt in centre on a pulley while it is in motion
In increasing the slip of the belt
In decreasing the slip of the belt
To increase pulley life

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