case hardening processes are those where……..

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📊 Engineering Metallurgy

Q. case hardening processes are those where……..

(A) complete component is through harden
(B) complte component is melted
(C) only surface of the component ,whose hardness is incresed
(D) all of the above

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✅ Correct Answer: (C) only surface of the component ,whose hardness is incresed

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