Refrigeration and Air Conditioning Refrigeration in aeroplanes usually employs the following refrigerant Freon-22 Air CO2 Freon-11 Freon-22 Air CO2 Freon-11 ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning A bootstrap air cooling system has Two heat exchangers Four heat exchangers Three heat exchangers One heat exchanger Two heat exchangers Four heat exchangers Three heat exchangers One heat exchanger ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The boiling point of ammonia is -30°C -33.3°C -77.7°C -10.5°C -30°C -33.3°C -77.7°C -10.5°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 50 kJ/kg 125 kJ/kg 100 kJ/kg 25 kJ/kg 50 kJ/kg 125 kJ/kg 100 kJ/kg ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The temperature of air recorded by a thermometer, when it is not affected by the moisture present in the air, is called None of these Wet bulb temperature Dew point temperature Dry bulb temperature None of these Wet bulb temperature Dew point temperature Dry bulb temperature ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The bank of tubes at the back of domestic refrigerator is Refrigerant cooling tubes Evaporator tubes Capillary tubes Condenser tubes Refrigerant cooling tubes Evaporator tubes Capillary tubes Condenser tubes ANSWER DOWNLOAD EXAMIANS APP
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