

MCQOPTIONS
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1. |
In full annealing, the hypo-eutectoid steel is heated from 30° C to 50° C above the upper critical temperature and then cooled |
A. | in still air |
B. | slowly in the furnace |
C. | suddenly in a suitable cooling medium |
D. | any one of these |
Answer» C. suddenly in a suitable cooling medium | |