Refrigeration and Air Conditioning Most of the domestic refrigerators work on the following refrigeration system Carnot cycle Vapour absorption Vapour compression Electrolux refrigerator Carnot cycle Vapour absorption Vapour compression Electrolux refrigerator ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The C.O.P. of a refrigeration cycle with lowering of condenser temperature, keeping the evaporator temperature constant, will Remain unaffected May increase or decrease depending on the type of refrigerant used Increase Decrease Remain unaffected May increase or decrease depending on the type of refrigerant used Increase Decrease ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning One of the purposes of sub cooling the liquid refrigerant is to Reduce compressor overheating Increase cooling effect Ensure that only liquid and not the vapour enters the expansion (throttling) valve Reduce compressor discharge temperature Reduce compressor overheating Increase cooling effect Ensure that only liquid and not the vapour enters the expansion (throttling) valve Reduce compressor discharge temperature ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning Formation of frost on evaporator in refrigerator Results in loss of heat due to poor heat transfer Can be avoided by proper design Increases heat transfer rate Is immaterial Results in loss of heat due to poor heat transfer Can be avoided by proper design Increases heat transfer rate Is immaterial ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The curved lines on a psychrometric chart indicates Wet bulb temperature Relative humidity Dry bulb temperature Dew point temperature Wet bulb temperature Relative humidity Dry bulb temperature Dew point temperature ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The difference between dry bulb temperature and wet bulb temperature, is called Dry bulb depression Degree of saturation Wet bulb depression Dew point depression Dry bulb depression Degree of saturation Wet bulb depression Dew point depression ANSWER DOWNLOAD EXAMIANS APP
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