Refrigeration and Air Conditioning The temperature of ammonia after compression in a vapour compression system is 50 to 70°C 20 to 50°C None of these 70 to 110°C 50 to 70°C 20 to 50°C None of these 70 to 110°C 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 Relative coefficient of performance Coefficient of performance of heat pump Coefficient of performance of refrigeration Refrigerating efficiency Relative coefficient of performance Coefficient of performance of heat pump Coefficient of performance of refrigeration Refrigerating efficiency ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning Which of the following refrigerants has lowest freezing point? CO2 NH3 Freon-22 Freon-12 CO2 NH3 Freon-22 Freon-12 ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The colour of the flame of halide torch, in case of leakage of Freon refrigerant, will change to Yellow Red Orange Bright green Yellow Red Orange Bright green ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning Rating of a domestic refrigerator is of the order of 5 tons 10 tons 40 tons 0.1 ton 5 tons 10 tons 40 tons 0.1 ton ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The reduced ambient air cooling system has 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 One cooling turbine and two heat exchangers Two cooling turbines and two heat exchangers ANSWER DOWNLOAD EXAMIANS APP
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