_______ of hard alloy and tool steel is done to make it easily machinable.

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Nisha Gupta

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📊 Chemical Engineering Basics

Q. _______ of hard alloy and tool steel is done to make it easily machinable.

(A) Case carburising
(B) Tempering
(C) Normalising
(D) Annealing

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✅ Correct Answer: (B) Tempering

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