Question

Second class bricks should not absorb water more than ________ by weight when soaked in cold water for one day.

(a) 20%

(b) 22%

(c) 30%

(d) 42%

This question was posed to me in my homework.

This is a very interesting question from Bricks in chapter Glass, Lime, Clay Products & Bricks of Construction & Building Materials

Answer 1

Right option is (b) 22%

To elaborate: Second class bricks should not absorb water more than 22% by weight when soaked in cold water for one day. Also, first-class bricks should not absorb water more than 20% by weight.