Question

The size of suspended solids lies in the range of ________

(a) 10^-3 – 10^-6 mm

(b) 10^3 – 10^6 mm

(c) 10^-1 – 10^-3 mm

(d) 10^1 – 10^3 mm

I got this question during an interview.

I would like to ask this question from Physical characteristic of Water in portion Quality of Water of Environmental Engineering

Answer 1

Right choice is (c) 10^-1 – 10^-3 mm

To explain: Size of suspended solids – 10^-1 – 10^-3 mm, size of colloidal solids – 10^-3 – 10^-6 mm, size of dissolved solids < 10^-6 mm.