Machine Design
When a metal or alloy is cold worked,

Both (A) and (B)
Its hardness and strength increases
None of these
It is worked below recrystallization temperature

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Machine Design
A tap bolt

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
Has pointed threads
Has a head on one end and a nut fitted to the other

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Machine Design
According to Indian standard specifications, 100 H6/g5 means that

Tolerance grade for the hole is 6 and for the shaft is 5
Tolerance grade for the shaft is 4 to 8 and for the hole is 3 to 7
Tolerance grade for the hole is 4 to 8 and for the shaft is 3 to 7
Tolerance grade for the shaft is 6 and for the hole is 5

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