If steel is heated to a temperature well below red heat and is then cooled slowly, the process is called_________...? Mcqs

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If steel is heated to a temperature well below red heat and is then cooled slowly, the process is called_________...?

(A) Annealing
(B) Quenching

(C) Tempering
(D) Nitriding

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Study of Soil is called__________...?

(A) Pedology
(B) Pedagogy

(C) sociology
(D) Demography

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