Question

The rate of amount of water vapour present to the amount it would have contained, had it been saturated, is known as the ___________ the temperature being same.

(a) Relative humidity

(b) Saturated air

(c) Dry bulb temperature

(d) Wet bulb temperature

This question was addressed to me in an international level competition.

The origin of the question is Types of Ventilation topic in portion Acoustics and Ventilation of Construction & Building Materials

Answer 1

Correct option is (a) Relative humidity

The explanation is: When a certain volume of air at a certain temperature contents as much water vapour as it can, it is said to be Saturated air. Generally, the air is not saturated at all times. But it contains a certain amount of water vapour in it.