Question

Which of the following is not a quality of a good brick?

(a) It should be well burnt in kilns

(b) It should give a clear ringing sound when struck with another brick

(c) It should be uniform in shape and should be sufficiently hard

(d) It should have a high thermal conductivity

I have been asked this question during an online interview.

The origin of the question is Bricks topic in chapter Glass, Lime, Clay Products & Bricks of Construction & Building Materials

Answer 1

The correct answer is:

(d) It should have a high thermal conductivity

A good brick should not have high thermal conductivity. Instead, it should be a good insulator, helping to regulate temperature and prevent heat loss or gain. High thermal conductivity would make it unsuitable for many building applications.