Refrigeration and Air Conditioning The pressure at the outlet of a refrigerant compressor is called Suction pressure Discharge pressure Critical pressure Back pressure Suction pressure Discharge pressure Critical pressure Back pressure 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 Orange Bright green Red Yellow Orange Bright green Red Yellow ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning Which of the following refrigerant is highly toxic and flammable? Sulphur dioxide Ammonia R-12 Carbon dioxide Sulphur dioxide Ammonia R-12 Carbon dioxide ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The freezing point of sulphur dioxide is -75.2°C -77.7°C -56.6°C -135.8°C -75.2°C -77.7°C -56.6°C -135.8°C 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) 125 kJ/kg 50 kJ/kg 100 kJ/kg 25 kJ/kg 125 kJ/kg 50 kJ/kg 100 kJ/kg 25 kJ/kg ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The vapour pressure of refrigerant should be Could be anything Higher than atmospheric pressure Equal to atmospheric pressure Lower than atmospheric pressure Could be anything Higher than atmospheric pressure Equal to atmospheric pressure Lower than atmospheric pressure ANSWER DOWNLOAD EXAMIANS APP
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