Refrigeration And Air Conditioning - Study Mode

[#226] For obtaining high COP, the pressure range of compressor should be
Correct Answer

(B) Low

Explanation

Solution: For obtaining high COP, the pressure range of compressor should be low

[#227] The refrigerant after condensation process is cooled below the saturation temperature before throttling. Such a process is called
Correct Answer

(A) Sub-cooling or under-cooling

Explanation

Solution: The refrigerant after condensation process is cooled below the saturation temperature before throttling. Such a process is called Sub-cooling or under-cooling

[#228] A valve which maintains a constant degree of superheat at the end of the evaporator coil, is called
Correct Answer

(D) Low side float valve

Explanation

Solution: Low Side Float Valves. The low side float type of the throttling valve is usually used in the flooded type of the refrigeration plants A valve which maintains a constant degree of superheat at the end of the evaporator coil, is called Low Side Float Valves.

[#229] Formation of frost on evaporator in refrigerator
Correct Answer

(A) Results in loss of heat due to poor heat transfer

Explanation

Solution: Formation of frost on evaporator in refrigerator Results in loss of heat due to poor heat transfer

[#230] The coefficient of performance of Electrolux refrigerator is the ratio of
Correct Answer

(B) Heat absorbed by the evaporator to the heat supplied by the gas burner

Explanation

Solution: The coefficient of performance of Electrolux refrigerator is the ratio of Heat absorbed by the evaporator to the heat supplied by the gas burner