Refrigeration and Air Conditioning A refrigerant with the highest critical pressure is Ammonia R-22 R-12 R-11 Ammonia R-22 R-12 R-11 ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The wet bulb temperature during sensible heating of air Increases None of these Decreases Remains constant Increases None of these Decreases Remains constant ANSWER DOWNLOAD EXAMIANS APP
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 2.33 1.33 3.33 4.33 2.33 1.33 3.33 4.33 ANSWER DOWNLOAD EXAMIANS APP
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 A one tonne refrigerating machine means that One tonne refrigerant is used One tonne is the total mass of machine One tonne of water can be converted into ice One tonne of ice when melts from and at 0° C in 24 hours, the refrigeration effect is equivalent to 210 kJ/min One tonne refrigerant is used One tonne is the total mass of machine One tonne of water can be converted into ice One tonne of ice when melts from and at 0° C in 24 hours, the refrigeration effect is equivalent to 210 kJ/min ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning In S.J. unit, one ton of refrigeration is equal to 210 kJ/ min 420 kJ/ min 840 kJ/ min 21 kJ/ min 210 kJ/ min 420 kJ/ min 840 kJ/ min 21 kJ/ min ANSWER DOWNLOAD EXAMIANS APP
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