Question

The extent of water treatment depends on how many factors?

(a) 5

(b) 2

(c) 3

(d) 4

This question was addressed to me during an interview.

Question is taken from Wastewater Management topic in portion Other Major Topics in Civil Engineering of Basic Civil Engineering

Answer 1

The correct answer is (b) 2

Easiest explanation: The extent of treatment depends on 2 factors- the quality of water (depends on the source) and the beneficial uses (high quality for domestic, production sector, low quality for housekeeping, a germ free for recreational and for agricultural purposes having low TDS, Na ratio, etc.).