Machine Design
The connecting rod bolts are tightened up so that tightening stress

Is about yield point divided by safety factor
Is 50% of yield point
Approaches yield point
Is just sufficient to hold parts together

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Machine Design
Which is correct statement?

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

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