Refrigeration and Air Conditioning R-12 is generally preferred over R-22 in deep freezers since It gives higher coefficient of performance It has low operating pressures It is miscible with oil over large range of temperatures All of these It gives higher coefficient of performance It has low operating pressures It is miscible with oil over large range of temperatures All of these ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning Highest temperature encountered in refrigeration cycle should be Much below critical temperature At critical Temperature Near critical temperature of refrigerant Above critical temperature Much below critical temperature At critical Temperature Near critical temperature of refrigerant Above critical temperature ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning In a pressure enthalpy chart, the space to the left of the saturated liquid line represents None of the listed here Superheated vapour region Wet vapour region Sub-cooled liquid region None of the listed here Superheated vapour region Wet vapour region Sub-cooled liquid region ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The wet bulb depression indicates _________ humidity of the air. Specific Relative Absolute None of these Specific Relative Absolute None of these ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning Short horizontal lines on pressure-enthalpy chart show Constant entropy lines Constant temperature lines Constant total heat lines Constant pressure lines Constant entropy lines Constant temperature lines Constant total heat lines Constant pressure lines ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The pressure at the inlet of a refrigerant compressor is called Discharge pressure Suction pressure Critical pressure Back pressure Discharge pressure Suction pressure Critical pressure Back pressure ANSWER DOWNLOAD EXAMIANS APP
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