Refrigeration and Air Conditioning It is desired to condition the outside air from 70% relative humidity and 45° C dry bulb temperature to 50% relative humidity and 25° C dry bulb temperature (room condition). The practical arrangement will be Cooling and humidification Cooling and dehumidification Dehumidification Dehumidification and pure sensible cooling Cooling and humidification Cooling and dehumidification Dehumidification Dehumidification and pure sensible cooling ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning In a domestic vapour compression refrigerator, the refrigerant commonly used is CO? Ammonia R-12 All of these CO? Ammonia R-12 All of these ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The vapour pressure of refrigerant should be Equal to atmospheric pressure Higher than atmospheric pressure Lower than atmospheric pressure Could be anything Equal to atmospheric pressure Higher than atmospheric pressure Lower than atmospheric pressure Could be anything ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The sub-cooling in a refrigeration cycle Does not alter C.O.P. Increases C.O.P. None of these Decreases C.O.P. Does not alter C.O.P. Increases C.O.P. None of these Decreases C.O.P. ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning Which of the following refrigerant has the lowest freezing point? R-12 R-22 Ammonia R-11 R-12 R-22 Ammonia R-11 ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The ratio of heat extracted in the refrigerator to the work-done on the refrigerant is called Coefficient of performance of heat pump Refrigerating efficiency Relative coefficient of performance Coefficient of performance of refrigeration Coefficient of performance of heat pump Refrigerating efficiency Relative coefficient of performance Coefficient of performance of refrigeration ANSWER DOWNLOAD EXAMIANS APP
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