Machine Design
In unilateral system of tolerance, the tolerance is allowed on

One side of the nominal size
Both sides of the actual size
Both sides of the nominal size
One side of the actual size

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Machine Design
A bolt

Has a head on one end and a nut fitted to the other
Has both the ends threaded
Has head at one end and other end fits into a tapped hole in the other part to be joined
Is provided with pointed threads

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