Question

Annealing involves heating the component to a temperature

(a) Slightly above the critical temperature

(b) Equal to critical temperature

(c) Slightly less than critical temperature

(d) None of the mentioned

This question challenged me in an entrance exam.

I am reviewing the Heat Treatment & Case Hardening of Steels concept in part Engineering Materials of Machine Design

Answer 1

The best answer is (a) Slightly above the critical temperature

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