Refrigeration and Air Conditioning The wet bulb temperature at 100% relative humidity is ________ dew point temperature. Same as Lower than Higher than None of these Same as Lower than Higher than None of these ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning One of the purposes of sub cooling the liquid refrigerant is to Ensure that only liquid and not the vapour enters the expansion (throttling) valve Reduce compressor overheating Increase cooling effect Reduce compressor discharge temperature Ensure that only liquid and not the vapour enters the expansion (throttling) valve Reduce compressor overheating Increase cooling effect Reduce compressor discharge temperature ANSWER DOWNLOAD EXAMIANS APP
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 Humidity ratio Absolute humidity Degree of saturation Relative humidity Humidity ratio Absolute humidity ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning Most thermostatic expansion valves are set for a superheat of 15°C 5°C 10°C 20°C 15°C 5°C 10°C 20°C ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The coefficient of performance (C.O.P.) of a refrigerator working as a heat pump is given by ( O.P)R O.P)R - 1 O.P)P = ( O.P.)R + 1 O.P.)P = ( O.P)P = ( ( ( ( O.P.)R + 2 O.P.)P = ( ( O.P)R O.P)R - 1 O.P)P = ( O.P.)R + 1 O.P.)P = ( O.P)P = ( ( ( ( O.P.)R + 2 O.P.)P = ( ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The index which correlates the combined effects of air temperature, relative humidity and air velocity on the human body, is known as None of the listed here Effective temperature Dew point temperature Mean radiant temperature None of the listed here Effective temperature Dew point temperature Mean radiant temperature ANSWER DOWNLOAD EXAMIANS APP
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