Heat Transfer Refrigeration and Air Conditioning MCQ with Answers

Heat Transfer Refrigeration and Air Conditioning MCQ with Answers

341) In a lithium bromide absorption refrigeration system

Answer is:

water is used as a refrigerant and lithium bromide as an absorbent

342) A condenser is used in the __________ pressure side of a refrigerating system.

Answer is:

high

343) A steam pipe is to be lined with two layers of insulating materials of different thermal conductivities. For the minimum heat transfer,

Answer is:

the better insulation must be put inside

344) In a parallel flow heat exchanger, the rate of flow of heat and the rate of decrease of temperature are maximum.

Answer is:

Yes

345) When the air is passed through an insulated chamber having sprays of water maintained at a temperature higher than the dew point temperature of entering air but lower than its dry bulb temperature, then the air is said to be

Answer is:

cooled and humidified

66
67
68
69
70
71
72