Machine Design
The elasticity is the property of a material which enables it to

Regains its original shape after deformation when the external forces are removed
Resists fracture due to high impact loads
Draw into wires by the application of a tensile force
Retain deformation produced under load permanently

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Machine Design
When the belt is transmitting maximum power,

None of these
The tension in tight side is twice the centrifugal tension
The tension in slack side is equal to the centrifugal tension
The tension in tight side is thrice the centrifugal tension

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