Question

Which of the following is not a characteristic of traps?

(a) A trap should be simple in construction

(b) It should be cheap and readily available

(c) A trap should be self-cleansing

(d) A trap should be of an absorbent material

Answer 1

Correct choice is (d) A trap should be of an absorbent material

Easiest explanation: A trap is used to prevent the passage of foul air through it though it permits the sewage to flow through it. A trap should be cheap and readily available. It should be self-cleansing and simple in construction. A trap should be of non-absorbent material.