quenching is not necessary when hardening is done by Options: A . &nbsp Case hardening B . &nbsp Flame hardening C . &nbsp Nitriding D . &nbsp Any one of these

quenching is not necessary when hardening is done by

Question

Quenching is not necessary when hardening is done by

Options:

A . Case hardening

B . Flame hardening

C . Nitriding

D . Any one of these

Answer: Option C
Explanation :

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