Bolts in structures are often tightened upto or beyond the yield point – McqOptions

MCQOPTIONS

1.	Bolts in structures are often tightened upto or beyond the yield point because
A.	frction is more beyond yield point thus providing a firm joint
B.	temperature variations may loosen the joint
C.	it improves endurance strength
D.	all of the above
E.	Increasing the diameter of threaded portion
Answer» D.

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