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 During sensible heating of air _________ decreases. Relative humidity Dry bulb temperature Wet bulb temperature Specific humidity Relative humidity Dry bulb temperature Wet bulb temperature Specific humidity ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The power per tonne of refrigeration is 3.5 × C.O.P. 3.5/C.O.P. None of these O.P/3.5 3.5 × C.O.P. 3.5/C.O.P. None of these O.P/3.5 ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning An important characteristic of absorption system of refrigeration is noisy operation very little power consumption cooling below 0°C quiet operation noisy operation very little power consumption cooling below 0°C quiet operation ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The pressure at the inlet of a refrigerant compressor is called Suction pressure Back pressure Critical pressure Discharge pressure Suction pressure Back pressure Critical pressure Discharge pressure ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The evaporator used in household refrigerators is Defrosting evaporator Frosting evaporator None of these Non-frosting evaporator Defrosting evaporator Frosting evaporator None of these Non-frosting evaporator ANSWER DOWNLOAD EXAMIANS APP
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