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Machine Design - Engineering

Q1:

A jam nut is a locking device in which

A a thinner nut is tightened down over a thicker or main nut and the main nut is tightened against the thinner nut by loosening

B a slot is cut in line with the centre of each face and a split pin passes through two slots in the nut and a hole in the bolt, so that a positive lock is obtained unless the pin shears

C a slot is cut about half way through the nut and a small screw is tightened between the nut and the bolt in order to produce more friction

D the bottom cylindrical portion is recessed to receive the tip of the locking set screw

ANS:A - a thinner nut is tightened down over a thicker or main nut and the main nut is tightened against the thinner nut by loosening

Explanation: No answer description is available.