Heat Transfer Refrigeration and Air Conditioning MCQ with Answers

Heat Transfer Refrigeration and Air Conditioning MCQ with Answers

321) During sensible cooling of air, the relative humidity increases.

Answer is:

Yes

322) In actual air-conditioning applications for R-12 and R-22, and operating at a condenser temperature of 40 Degree Centigrade and an evaporator temperature of 5 Degree Centigrade, the heat rejection factor is about

Answer is:

1.25

323) The undesireable property of a refrigerant is

Answer is:

high boiling point

324) The dry bulb temperature during sensible heating of air

Answer is:

increases

325) Radiation is the process of heat transfer in which heat flows from a __________ , in a straight line, without affecting the intervening medium.

Answer is:

hot body to cold body

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