Refrigeration and Air Conditioning One tonne of refrigeration (1TR) means that the heat removing capacity is 420 kJ/min 620 kJ/min 21 kJ/min 210 kJ/min 420 kJ/min 620 kJ/min 21 kJ/min 210 kJ/min ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The coefficient of performance is the ratio of the refrigerant effect to the Work done by compressor Heat of compression All of these Enthalpy increase in compressor Work done by compressor Heat of compression All of these Enthalpy increase in compressor ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The desirable property of a refrigerant is High latent heat of vaporisation All of these Low boiling point High critical temperature High latent heat of vaporisation All of these Low boiling point High critical temperature ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The COP of a domestic refrigerator Is less than 1 Is equal to 1 Depends upon the make Is more than 1 Is less than 1 Is equal to 1 Depends upon the make Is more than 1 ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The operating temperature of a cold storage is -2°C. The heat leakage from the surrounding is 30 kW for the ambient temperature of 40°C. The actual C.O.P. of refrigeration plant used is one fourth that of ideal plant working between the same temperatures. The power required to drive the plant is 3.72 kW 1.86 kW 7.44 kW 18.6 kW 3.72 kW 1.86 kW 7.44 kW 18.6 kW ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning A certain refrigerating system has a normal operating suction pressure of 10 kg/cm gauge and condensing pressure of about 67 kg/cm. The refrigerant used is Freon Ammonia Carbon dioxide Brine Freon Ammonia Carbon dioxide Brine ANSWER DOWNLOAD EXAMIANS APP
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