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

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

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Machine Design
When the shaft rotates in anticlockwise direction at slow speed in a bearing, it will

Move towards left of the bearing making metal to metal contact
Move towards right of the bearing making the metal to metal contact
Have contact at the bottom most of the bearing
Move towards right of the bearing making no metal to metal contact

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