Refrigeration and Air Conditioning A reversible engine has ideal thermal efficiency of 30%. When it is used as a refrigerating machine with all other conditions unchanged, the coefficient of performance will be 4.33 1.33 3.33 2.33 4.33 1.33 3.33 2.33 ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning Bell Coleman cycle is a Reversed Otto cycle Reversed Joule cycle Reversed Carnot cycle Reversed Rankine cycle Reversed Otto cycle Reversed Joule cycle Reversed Carnot cycle Reversed Rankine cycle ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning For air conditioning the operation theater in a hospital, the percentage of outside air in the air supplied is 50 100 Zero 20 50 100 Zero 20 ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The superheating in a refrigeration cycle Does not alter C.O.P. None of these Decreases C.O.P. Increases C.O.P. Does not alter C.O.P. None of these Decreases C.O.P. Increases C.O.P. ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning Which of the following refrigerants has lowest freezing point? CO2 Freon-22 Freon-12 NH3 CO2 Freon-22 Freon-12 NH3 ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The difference between dry bulb temperature and wet bulb temperature, is called Wet bulb depression Dew point depression Dry bulb depression Degree of saturation Wet bulb depression Dew point depression Dry bulb depression Degree of saturation ANSWER DOWNLOAD EXAMIANS APP
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