Engineering Materials MCQ with Answers

Engineering Materials MCQ with Answers

141) the process used for relieving the internal stresses previously set up in the metal and for increasing the machinability of steel, is

Answer is:

process annealing

142) when the steel is normalized, its

Answer is:

all of these

Explanation:

When the steel is normalized, its Yield point increases, Ductility decreases and Ultimate tensile strength increases

143) Which of the following statement is wrong?

Answer is:

none of the above

144) In the austempering process of heat treatment, austenite changes into

Answer is:

bainite

145) The heat treatment process used for castings is

Answer is:

normalizing

The heat treatment process used for castings is

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