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 2.33 1.33 3.33 4.33 2.33 1.33 3.33 ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The pressure at the inlet of a refrigerant compressor is called Suction pressure Discharge pressure Critical pressure Back pressure Suction pressure Discharge pressure Critical pressure Back pressure ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning Accumulators should have adequate volume to store refrigerant charge at least 0.5 0.1 0.75 0.25 0.5 0.1 0.75 0.25 ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning Wet bulb temperature is the temperature of air recorded by a thermometer, when The moisture present in it begins to condense Its bulb is surrounded by a wet cloth exposed to the air None of these It is not affected by the moisture present in the air The moisture present in it begins to condense Its bulb is surrounded by a wet cloth exposed to the air None of these It is not affected by the moisture present in the air ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning In air-conditioning of aeroplanes, using air as a refrigerant, the cycle used is Reversed Carnot cycle Reversed Brayton cycle Reversed Joule cycle Reversed Otto cycle Reversed Carnot cycle Reversed Brayton cycle Reversed Joule cycle Reversed Otto cycle ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning In vapour compression refrigeration system, refrigerant occurs as liquid between Compressor and condenser Compressor and evaporator Condenser and expansion valve Expansion valve and evaporator Compressor and condenser Compressor and evaporator Condenser and expansion valve Expansion valve and evaporator ANSWER DOWNLOAD EXAMIANS APP
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