Refrigeration and Air Conditioning Which of the following refrigerants has lowest freezing point? Freon-22 NH3 Freon-12 CO2 Freon-22 NH3 Freon-12 CO2 ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The thermostatic expansion valve operates on the changes in the Temperature of the evaporator None of these Pressure in the evaporator Degree of superheat at exit from the evaporator Temperature of the evaporator None of these Pressure in the evaporator Degree of superheat at exit from the evaporator ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The wet bulb temperature during sensible cooling of air Remains constant Increases Decreases None of these Remains constant Increases Decreases None of these ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning A certain refrigerating system has a normal operating suction pressure of 10 kg/cm gauge and condensing pressure of about 67 kg/cm. The refrigerant used is Brine Carbon dioxide Ammonia Freon Brine Carbon dioxide Ammonia Freon ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The wet bulb temperature during sensible heating of air Decreases None of these Increases Remains constant Decreases None of these Increases Remains constant ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The C.O.P. of a Carnot refrigerator in winter will be _________ as compared to C.O.P. in summer. Same None of these Higher Lower Same None of these Higher Lower ANSWER DOWNLOAD EXAMIANS APP
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