Refrigeration and Air Conditioning The refrigerant used for absorption refrigerators working on heat from solar collectors is a mixture of water and Sulphur dioxide Lithium bromide Carbon dioxide R-12 Sulphur dioxide Lithium bromide Carbon dioxide R-12 ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning A mixture of dry air and water vapour, when the air has diffused the maximum amount of water vapour into it, is called Moist air Specific humidity Dry air Saturated air Moist air Specific humidity Dry air Saturated air ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The pressure at the inlet of a refrigerant compressor is called Back pressure Suction pressure Discharge pressure Critical pressure Back pressure Suction pressure Discharge pressure Critical pressure ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning Absorption system normally uses the following refrigerant Freon-22 CO2 Freon-11 Ammonia Freon-22 CO2 Freon-11 Ammonia ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning In aircraft, air refrigeration Cycle is used because of High heat transfer rate Low temperature at high altitudes Low weight per tonne of refrigeration Higher coefficient of performance High heat transfer rate Low temperature at high altitudes Low weight per tonne of refrigeration Higher coefficient of performance ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning Formation of frost on evaporator in refrigerator Can be avoided by proper design Is immaterial Results in loss of heat due to poor heat transfer Increases heat transfer rate Can be avoided by proper design Is immaterial Results in loss of heat due to poor heat transfer Increases heat transfer rate ANSWER DOWNLOAD EXAMIANS APP
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