Heat Transfer Refrigeration and Air Conditioning MCQ with Answers

Heat Transfer Refrigeration and Air Conditioning MCQ with Answers

206) The desirable property of a refrigerant is

Answer is:

all of these

Explanation:

The desirable property of a refrigerant is
* low boiling point
* high critical temperature
* high latent heat of vaporisation

207) The humidification process, on the psychrometric chart is shown by

Answer is:

vertical line

208) The colour of the flame of halide torch, in case of leakage of freon refrigerant, will change to

Answer is:

bright green

209) The wet bulb depression indicates __________ humidity of the air.

Answer is:

relative

210) The refrigerant widely used in domestic refrigerators is

Answer is:

R-12

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