Refrigeration and Air Conditioning In a saturated air-water vapour mixture, the Dry bulb temperature is higher than wet bulb temperature Dew point temperature is lower than wet bulb temperature Dry bulb, wet bulb and dew point temperature are same Dry bulb temperature is higher than dew point temperature Dry bulb temperature is higher than wet bulb temperature Dew point temperature is lower than wet bulb temperature Dry bulb, wet bulb and dew point temperature are same Dry bulb temperature is higher than dew point temperature ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning Which of the following refrigerant has the lowest freezing point? R-11 R-12 Ammonia R-22 R-11 R-12 Ammonia R-22 ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The pressure at the inlet of a refrigerant compressor is called Discharge pressure Critical pressure Suction pressure Back pressure Discharge pressure Critical pressure Suction pressure Back pressure ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The change in evaporator temperature in a refrigeration cycle, as compared to change in condenser temperature, influences the value of C.O.P. More Less Unpredictable Equally More Less Unpredictable Equally ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The COP of a domestic refrigerator Depends upon the make Is more than 1 Is equal to 1 Is less than 1 Depends upon the make Is more than 1 Is equal to 1 Is less than 1 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) 100 kJ/kg 50 kJ/kg 25 kJ/kg 125 kJ/kg 100 kJ/kg 50 kJ/kg 25 kJ/kg 125 kJ/kg ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS