Question

The vapour content in the air is measured using a physical
quantity called
(A)
Absolute humidity
(B)
Relative humidity
(C)
Dew point
(D)
Humidity​

Answer 1

The vapor content in the air is measured by a physical quantity called:

(D) Humidity

Humidity can be defined as the amount of water vapor present in the air.

It can be measured by three primary measurements called absolute, relative and specific which can be defined as follows:

1. Absolute humidity refers to the absolute water content present in the air.
2. The relative humidity is expressed as a percent and refers to the measuring of the current absolute humidity relative to the maximum possible for that temperature.
3. Specific humidity refers to the ratio of the water vapor content of the mixture to the total air content on a mass basis.