Refrigeration and Air Conditioning The reduced ambient air cooling system has One cooling turbine and two heat exchangers Two cooling turbines and two heat exchangers Two cooling turbines and one heat exchanger One cooling turbine and one heat exchanger One cooling turbine and two heat exchangers Two cooling turbines and two heat exchangers Two cooling turbines and one heat exchanger One cooling turbine and one heat exchanger ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning When the lower temperature of a refrigerating machine is fixed, then the coefficient of performance can be improved by Raising the higher temperature Operating the machine at higher speeds Operating the machine at lower speeds Lowering the higher temperature Raising the higher temperature Operating the machine at higher speeds Operating the machine at lower speeds Lowering the higher temperature ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning In S.J. unit, one ton of refrigeration is equal to 21 kJ/ min 210 kJ/ min 420 kJ/ min 840 kJ/ min 21 kJ/ min 210 kJ/ min 420 kJ/ min 840 kJ/ min ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The refrigerant after condensation process is cooled below the saturation temperature before throttling. Such a process is called Super-cooling Normal cooling None of the listed here Sub-cooling or under-cooling Super-cooling Normal cooling None of the listed here Sub-cooling or under-cooling ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The relative coefficient of performance is equal to None of these (Actual C.O.P.) × (Theoretical C.O.P.) (Theoretical C.O.P.)/ (Actual C.O.P.) (Actual C.O.P.) /(Theoretical C.O.P.) None of these (Actual C.O.P.) × (Theoretical C.O.P.) (Theoretical C.O.P.)/ (Actual C.O.P.) (Actual C.O.P.) /(Theoretical C.O.P.) ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning In a spray washing system, if the temperature of water is higher than the dry bulb temperature of entering air, then the air is Cooled and humidified Heated and humidified Cooled and dehumidified Heated and dehumidified Cooled and humidified Heated and humidified Cooled and dehumidified Heated and dehumidified ANSWER DOWNLOAD EXAMIANS APP
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