Question

Which of the following is not a stage of volume shrinkage?

(a) Liquid contraction

(b) Solid contraction

(c) Gaseous contraction

(d) Solidification contraction

I had been asked this question in an interview for internship.

The question is from Defects and Machining of Metals, Solidification of Metals in portion Mechanical Working Processes & Phase Transformations of Engineering Material & Metallurgy

Answer 1

Right choice is (c) Gaseous contraction

Easiest explanation: Liquid contraction occurs when the metal is in a liquid state, whereas solid contraction occurs when the metal is solid and takes place after solidification. Solidification contraction occurs during the transition from liquid to solid state.