Refrigeration and Air Conditioning In a vapour compression cycle, the refrigerant immediately after expansion valve is Liquid Sub-cooled liquid Saturated liquid Wet vapour Liquid Sub-cooled liquid Saturated liquid Wet vapour ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning During heating and humidification, the final relative humidity of air Is lower than that of the entering air None of the listed here Is higher than that of the entering air Can be lower or higher than that of the entering air Is lower than that of the entering air None of the listed here Is higher than that of the entering air Can be lower or higher than that of the entering air ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning In case of sensible cooling of air, the coil efficiency is given by P.F. - 1 1 - B.P.F. 1/ B.P.F. 1 + B.P.F. P.F. - 1 1 - B.P.F. 1/ B.P.F. 1 + B.P.F. ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning Allowable pressure on high pressure side or ammonia absorption system is of the order of Slightly above atmospheric pressure 56 bars Atmospheric pressure 24 bars Slightly above atmospheric pressure 56 bars Atmospheric pressure 24 bars ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The refrigerant after condensation process is cooled below the saturation temperature before throttling. Such a process is called Super-cooling Normal cooling None of the listed here Sub-cooling or under-cooling Super-cooling Normal cooling None of the listed here Sub-cooling or under-cooling ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning A thermostatic expansion valve in a refrigeration system Ensures the evaporator completely filled with refrigerant of the load Maintains different temperatures in evaporator in proportion to load Is suitable only for constant load systems None of these Ensures the evaporator completely filled with refrigerant of the load Maintains different temperatures in evaporator in proportion to load Is suitable only for constant load systems None of these ANSWER DOWNLOAD EXAMIANS APP
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