Refrigeration and Air Conditioning (2161908) MCQ

MCQs of Psychrometry

MCQ No - 1

The science of study of the thermodynamic properties of a mixture of dry air and water vapour in the atmosphere is called

(A) Refrigeration
(B) Psychrometry
(C) Air conditioning
(D) None of the above

B
MCQ No - 2

The mixture of a number of gases by volume in the air is known as

(A) dry air
(B) moist air
(C) saturated air
(D) none of the above

A
MCQ No - 3

A mixture of dry air and water vapour, when the air has diffused the maximum amount of water vapour into it, is called

(A) dry air
(B) moist air
(C) saturated air
(D) specific humidity

C
MCQ No - 4

The total pressure exerted by the mixture of air and water vapour is equal to the sum of pressures which each constituent would exert, if it occupied the same space by itself. This statement is called

(A) Kinetic theory of gases
(B) Newton's law of gases
(C) Dalton's law of partial pressures
(D) Avogadro's hypothesis

C
MCQ No - 5

Dry bulb temperature is the temperature of air recorded by a thermometer, when

(A) it is not affected by the moisture present in the air
(B) its bulb is surrounded by a wet cloth exposed to the air
(C) the moisture present in it begins to condense
(D) none of the above

A