Heat Transfer Refrigeration and Air Conditioning MCQ with Answers

Heat Transfer Refrigeration and Air Conditioning MCQ with Answers

261) If the condenser temperature is kept constant, the coefficient of performance of a refrigeration cycle increases with the increase in evaporator temperature.

Answer is:

Yes

262) The process of heat transfer from one particle of the fluid to another by the actual movement of the fluid particles caused by some mechanical means, is known as

Answer is:

forced convection

263) When ? is absorptivity, ? is reflectivity and ? is transmittivity, then for a diathermanous body,

Answer is:

? + ? = 1 and ? = 0

264) When there is an addition of water vapour to the air of enclosed space, a gain in __________ is said to occur.

Answer is:

latent heat

265) The relative humidity __________ as air gets drier.

Answer is:

increases

50
51
52
53
54
55
56