General Studies · Heat Treatment of Metals

Which of the following processes is NOT a type of surface hardening?

Verified Solution4 OptionsUpdated: October 2026👁️1 View

1Annealing✓
2Induction hardening
3Flame hardening
4Nitriding

Correct answer

Annealing

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Which of the following processes is NOT a type of surface hardening?

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Which of the following processes is NOT a type of surface hardening?

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