Refrigeration and Air Conditioning The unit of thermal diffusivity is m²/hK m/h m/hK m²/h m²/hK m/h m/hK m²/h ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning For proper refrigeration in a cabinet, if the temperature and vapour pressure difference between cabinet and atmosphere is high, then Refrigerant with lower evaporation temperature should be used Smaller cabinet should be used Perfectly tight vapour seal should be used Bigger cabinet should be used Refrigerant with lower evaporation temperature should be used Smaller cabinet should be used Perfectly tight vapour seal should be used Bigger cabinet should be used ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The atmospheric air at dry bulb temperature of 15°C enters a heating coil maintained at 40°C. The air leaves the heating coil at 25°C. The bypass factor of the heating coil is 0.6 0.376 0.67 0.4 0.6 0.376 0.67 0.4 ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning When the air is passed through an insulated chamber having sprays of water maintained at a temperature higher than the dew point temperature of entering air but lower than its dry bulb temperature, then the air is said to be Cooled and humidified Heated and dehumidified Cooled and dehumidified Heated and humidified Cooled and humidified Heated and dehumidified Cooled and dehumidified Heated and humidified ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning Short horizontal lines on pressure-enthalpy chart show Constant temperature lines Constant pressure lines Constant entropy lines Constant total heat lines Constant temperature lines Constant pressure lines Constant entropy lines Constant total heat lines ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning One ton refrigeration corresponds to 80 kcal/ hr 50 kcal/ min 50 kcal/ hr 80 kcal/ min 80 kcal/ hr 50 kcal/ min 50 kcal/ hr 80 kcal/ min ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS