Refrigeration and Air Conditioning In mechanical refrigeration system, the refrigerant has the maximum temperature Before expansion valve In evaporator Between compressor and condenser Between condenser and evaporator Before expansion valve In evaporator Between compressor and condenser Between condenser and evaporator 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 Carbon dioxide Ammonia Brine Freon Carbon dioxide Ammonia Brine Freon ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning An Electrolux refrigerator is called a ___ absorption system. Single fluid None of the listed here Two fluids Three fluids Single fluid None of the listed here Two fluids Three fluids 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 3.33 4.33 2.33 1.33 3.33 4.33 2.33 1.33 ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning During heating and dehumidification process, dry bulb temperature Decreases Increases None of these Remains constant Decreases Increases None of these Remains constant ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning Mass flow ratio of NH₃ in comparison to Freon-12 for same refrigeration load and same temperature limits is of the order of 1: 1 1: 3 9: 1 1: 9 1: 1 1: 3 9: 1 1: 9 ANSWER DOWNLOAD EXAMIANS APP
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