Question

The contractions in the materials depend upon the metallurgical transformation taking place during which of the following process?

(a) Solidification

(b) Melting

(c) Calcination

(d) Smelting

I had been asked this question in class test.

My question comes from Patterns and its Functions topic in division Casting Processes of Foundry and Forging

Answer 1

Correct choice is (a) Solidification

For explanation I would say: When a metal undergoes solidification, it undergoes a decrease in volume which is called contraction and hence is it is a major parameter in the metallurgical transformation which is taken into consideration while designing any component for foundry applications.