Refrigeration and Air Conditioning The ratio of the actual mass of water vapour in a unit mass of dry air to the mass of water vapour in the same mass of dry air when it is saturated at the same temperature and pressure, is called Degree of saturation Relative humidity Absolute humidity Humidity ratio Degree of saturation Relative humidity Absolute humidity Humidity ratio ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning In a vapour compression system, the condition of refrigerant before entering the expansion or throttle valve is High pressure saturated liquid Wet vapour Very wet vapour Dry vapour High pressure saturated liquid Wet vapour Very wet vapour Dry vapour ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The suction pipe diameter of refrigerating unit compressor in comparison to delivery side is Smaller Bigger Equal Smaller/bigger depending on capacity Smaller Bigger Equal Smaller/bigger depending on capacity 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 Smaller cabinet should be used Bigger cabinet should be used Perfectly tight vapour seal should be used Refrigerant with lower evaporation temperature should be used Smaller cabinet should be used Bigger cabinet should be used Perfectly tight vapour seal should be used Refrigerant with lower evaporation temperature should be used ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning In larger industrial and commercial reciprocating compression systems, refrigerant widely used is R-12 Carbon dioxide Ammonia Sulphur dioxide R-12 Carbon dioxide Ammonia Sulphur dioxide ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The boiling point of ammonia is -77.7°C -33.3°C -30°C -10.5°C -77.7°C -33.3°C -30°C -10.5°C ANSWER DOWNLOAD EXAMIANS APP
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