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Induction hardening process involves

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+1 vote
in Machine Design by (86.7k points)
Induction hardening process involves

(a) Heating surface by induction in field of invariable current

(b) Case depth minimum of 2mm are produced

(c) Heating surface by induction in field of alternating current

(d) None of the mentioned

I was tested on this during an online exam.

This question belongs to the Heat Treatment & Case Hardening of Steels in section Engineering Materials of Machine Design

1 Answer

0 votes
ago by (48.2k points)
The correct answer is (c) Heating surface by induction in field of alternating current

Dive into clarity with: Heating can only be done in presence of alternating current and not constant current.

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