Question

The value of specific gravity for Garnet sand is ____

(a) 2.1

(b) 3.6

(c) 4.2

(d) 5.1

This question was addressed to me by my school teacher while I was bunking the class.

This question is from Filter Media in chapter Filtration of Environmental Engineering

Answer 1

Right answer is (c) 4.2

Easy explanation: Garnet sand is a dense material with a specific gravity of 4.2 and is used as a constituent in mixed media filter. It is a costlier filter material.