Refrigeration and Air Conditioning In a saturated air-water vapour mixture, the Dew point temperature is lower than wet bulb temperature Dry bulb temperature is higher than dew point temperature Dry bulb, wet bulb and dew point temperature are same Dry bulb temperature is higher than wet bulb temperature Dew point temperature is lower than wet bulb temperature Dry bulb temperature is higher than dew point temperature Dry bulb, wet bulb and dew point temperature are same Dry bulb temperature is higher than wet bulb temperature 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 100 kJ/kg 25 kJ/kg 50 kJ/kg 125 kJ/kg 100 kJ/kg 25 kJ/kg 50 kJ/kg ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning In aircraft, air refrigeration Cycle is used because of Low weight per tonne of refrigeration Low temperature at high altitudes High heat transfer rate Higher coefficient of performance Low weight per tonne of refrigeration Low temperature at high altitudes High heat transfer rate Higher coefficient of performance ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning In refrigerators, the temperature difference between the evaporating refrigerant and the medium being cooled should be As low as possible (3 to 11°C) Zero Any value High, of the order of 25° As low as possible (3 to 11°C) Zero Any value High, of the order of 25° ANSWER DOWNLOAD EXAMIANS APP
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 coefficient of performance of Electrolux refrigerator is the ratio of Heat supplied by the gas burner to the heat absorbed by the evaporator Heat supplied by the gas burner minus the heat absorbed by the evaporator to the heat supplied by the gas burner Heat absorbed by the evaporator minus the heat supplied by the gas burner to the heat absorbed by the evaporator Heat absorbed by the evaporator to the heat supplied by the gas burner Heat supplied by the gas burner to the heat absorbed by the evaporator Heat supplied by the gas burner minus the heat absorbed by the evaporator to the heat supplied by the gas burner Heat absorbed by the evaporator minus the heat supplied by the gas burner to the heat absorbed by the evaporator Heat absorbed by the evaporator to the heat supplied by the gas burner ANSWER DOWNLOAD EXAMIANS APP
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