Machine Design
Which is correct statement?

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

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Machine Design
The effective stress in wire ropes during normal working is equal to the stress due to

Acceleration/retardation of masses plus stress due to bending
Axial load plus stress due to bending
Bending plus stress due to acceleration/retardation
Axial load plus stress due to acceleration/retardation

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