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Engineering
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ME Set-1
Heat Transfer Refrigeration and Air Conditioning
167

Heat Transfer Refrigeration and Air Conditioning MCQ with Answers

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

dry air

moist air

saturated air

specific humidity

Answer is:

saturated air

Heat Transfer Refrigeration and Air Conditioning MCQ with Answers

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Related Heat Transfer Refrigeration and Air Conditioning MCQ with Answers

168) 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

Kinetic theory of gases

Newton's law of gases

Dalton's law of partial pressures

Avogadro's hypothesis

Answer is:

Dalton's law of partial pressures

169) The expansion valve in a refrigerator controls the flow of refrigerant.

Correct

Incorrect

Answer is:

Correct

170) The relative humidity lines on a psychrometric chart are

vertical and uniformly spaced

horizontal and uniformly spaced

horizontal and non-uniformly spaced

curved lines

Answer is:

curved lines

171) The C.O.P. of a heat pump working on a reversed Carnot cycle is

(T1)/(T2-T1)

(T2-T1)/(T1)

(T1-T2)/(T1)

(T2)/(T2-T1)

Answer is:

(T2)/(T2-T1)

Heat Transfer Refrigeration and Air Conditioning MCQ with Answers

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