Machine Design
The rolling contact bearings as compared to sliding contact bearings have

Accuracy of shaft alignment
All of these
Small overall dimensions
Low starting and low running friction except at very high speeds

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

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

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Machine Design
Which is correct statement?

A member made of cast iron will generally be more rigid than a member of equal load carrying ability made of steel
A member made of steel will generally be more rigid than a member of equal load carrying ability made of cast iron
Which one is rigid will depend on several other factors
Both will be equally rigid

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