Annealing is [Pune CET 1998; AFMC 2002] – McqOptions

MCQOPTIONS

1.	Annealing is [Pune CET 1998; AFMC 2002]
A.	Heating steel in nitrogen and cooling
B.	Heating steel to bright redness and then cooling slowly
C.	Heating wrought iron with carbon to redness
D.	Heating steel to high temperature and cooling suddenly by plunging in water
Answer» C. Heating wrought iron with carbon to redness

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