Question

For a good stone, the percentage absorption by weight after a day in the water absorption test should not exceed ____________

(a) 0.60

(b) 0.90

(c) 1.60

(d) 1.90

The question was posed to me during an internship interview.

I need to ask this question from Stones in chapter Air Conditioning, Thermal Insulation, Stones & Ferrous Metals of Construction & Building Materials

Answer 1

Correct choice is (a) 0.60

Easiest explanation: For a good stone, the percentage absorption by weight after a day in the water absorption test should not exceed 0.60. Also, the specific gravity should be greater than 2.7 for good building stone.