Refrigeration and Air Conditioning Which of the following refrigerant has the lowest freezing point? R-12 R-22 Ammonia R-11 R-12 R-22 Ammonia R-11 ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning In a vapour compression cycle, the refrigerant immediately after expansion valve is Wet vapour Saturated liquid Sub-cooled liquid Liquid Wet vapour Saturated liquid Sub-cooled liquid Liquid ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning During adiabatic saturation process on unsaturated air ___ remains constant. Dry bulb temperature Relative humidity Wet bulb temperature Dew point temperature Dry bulb temperature Relative humidity Wet bulb temperature Dew point temperature ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning Mass flow ratio of NH₃ in comparison to Freon-12 for same refrigeration load and same temperature limits is of the order of 1: 9 1: 3 9: 1 1: 1 1: 9 1: 3 9: 1 1: 1 ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The superheating in a refrigeration cycle None of these Decreases C.O.P. Does not alter C.O.P. Increases C.O.P. None of these Decreases C.O.P. Does not alter C.O.P. Increases C.O.P. ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The advantage of dry compression is that It permits complete evaporation in the evaporator All of these It results in high volumetric and mechanical efficiency It permits higher speeds to be used It permits complete evaporation in the evaporator All of these It results in high volumetric and mechanical efficiency It permits higher speeds to be used ANSWER DOWNLOAD EXAMIANS APP
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