Question

_______________ occurs in the casting due to the quality variation.

(a) Defects

(b) Melting

(c) Stress-reliving

(d) Solidification

The question was posed to me at a job interview.

The doubt is from Casting Defects topic in chapter Concept of Gating and Risering of Foundry and Forging

Answer 1

Right answer is (a) Defects

The explanation is: Under normal conditions, like all the metallurgical products, castings also contain certain imperfections which contribute to a normal quality variation. Such imperfections are taken as defects or flaws.