Refrigeration and Air Conditioning Carbon dioxide is Non-flammable All of the listed here Colourless Odourless Non-flammable All of the listed here Colourless Odourless ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The evaporator changes the low pressure liquid refrigerant from the expansion valve into Low pressure liquid and vapour refrigerant None of these Low pressure vapour refrigerant High pressure liquid refrigerant Low pressure liquid and vapour refrigerant None of these Low pressure vapour refrigerant High pressure liquid refrigerant ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning A thermostatic expansion valve in a refrigeration system Maintains different temperatures in evaporator in proportion to load Is suitable only for constant load systems Ensures the evaporator completely filled with refrigerant of the load None of these Maintains different temperatures in evaporator in proportion to load Is suitable only for constant load systems Ensures the evaporator completely filled with refrigerant of the load None of these ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The freezing point of sulphur dioxide is -77.7°C -135.8°C -75.2°C -56.6°C -77.7°C -135.8°C -75.2°C -56.6°C ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The temperature of ammonia after compression in a vapour compression system is 50 to 70°C 70 to 110°C None of these 20 to 50°C 50 to 70°C 70 to 110°C None of these 20 to 50°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) 25 kJ/kg 100 kJ/kg 125 kJ/kg 50 kJ/kg 25 kJ/kg 100 kJ/kg 125 kJ/kg 50 kJ/kg ANSWER DOWNLOAD EXAMIANS APP
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