Refrigeration & Air-Conditioning MCQ Question with Answer

Question No : 22
The process of under-cooling is generally brought about by

Question No : 23
In a psychrometric process, the sensible heat added is 30 kJ/s and the latent heat added is 20 kJ/s. The sensible heat factor for the process will be

Question No : 24
Carbon dioxide is

Question No : 25
Pressure of water vapour is given by

Question No : 26
Which of the following refrigerant is highly toxic and flammable?

Question No : 27
A standard ice point temperature corresponds to the temperature of

Question No : 28
The temperature of air recorded by a thermometer, when its bulb is surrounded by a wet cloth exposed to the air, is called