Heat Transfer Refrigeration and Air Conditioning MCQ with Answers

Heat Transfer Refrigeration and Air Conditioning MCQ with Answers

166) The capacity of the cooling tower and spray ponds __________ as the wet bulb temperature of air decreases.

Answer is:

increases

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

Answer is:

saturated air

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

Answer is:

Dalton's law of partial pressures

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

Answer is:

Correct

170) The relative humidity lines on a psychrometric chart are

Answer is:

curved lines

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