Pick out the wrong statement?

A. Crane hooks are normally made of wrought iron

B. perature

C. The toughness of a material decreases, when it is heated

D. Cold working of a metal decreases its fatigue strength

E. The temperature at which new grains are formed in a metal is known as the recrystallisation

Be the first to comment if anything wrong with this mcq
Your comment successfully submitted!
It will automatically posted after review and approval by our staff member.