Refrigeration and Air Conditioning In vapour compression cycle using NH₃ as refrigerant, initial charge is filled at Low pressure side near receiver Delivery of compressor Suction of compressor High pressure side close to receiver Low pressure side near receiver Delivery of compressor Suction of compressor High pressure side close to receiver ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning A refrigerating system operating on reversed Brayton refrigeration cycle is used for maintaining 250 K. If the temperature at the end of constant pressure cooling is 300 K and rise in the temperature of air in the refrigerator is 50 K, then the net work of compression will be (assume air as working substance with Cp = 1 kJ/kg) 100 kJ/kg 125 kJ/kg 50 kJ/kg 25 kJ/kg 100 kJ/kg 125 kJ/kg 50 kJ/kg 25 kJ/kg ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning In vapour compression cycle the condition of refrigerant is superheated vapour Before passing through the condenser After passing through the expansion or throttle valve Before entering the expansion valve After passing through the condenser Before passing through the condenser After passing through the expansion or throttle valve Before entering the expansion valve After passing through the condenser 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 1.86 kW 7.44 kW 18.6 kW 3.72 kW 1.86 kW 7.44 kW 18.6 kW 3.72 kW ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning A condenser of refrigeration system rejects heat at the rate of 120 kW, while its compressor consumes a power of 30 kW. The coefficient of performance of the system will be 43833 4 43834 3 43833 4 43834 3 ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The thermostatic expansion valve is used in ________ type of evaporators. Dry Flooded DX coil None of these Dry Flooded DX coil None of these ANSWER DOWNLOAD EXAMIANS APP
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