When low carbon steel is heated up to upper critical temperature
A. There is no change in grain size
B. The average grain size is a minimum
C. The grain size increases very rapidly
D. The grain size first increases and then decreases very rapidly
Answer: Option B
Solution (By Examveda Team)
When low carbon steel is heated up to upper critical temperature, the average grain size is a minimum.This Question Belongs to Mechanical Engineering >> Engineering Materials
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