Refrigeration and Air Conditioning Which of the following refrigerants has lowest freezing point? NH3 Freon-22 Freon-12 CO2 NH3 Freon-22 Freon-12 CO2 ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning Which of the following refrigerant is highly toxic and flammable? Carbon dioxide R-12 Sulphur dioxide Ammonia Carbon dioxide R-12 Sulphur dioxide Ammonia ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning A mixture of dry air and water vapour, when the air has diffused the maximum amount of water vapour into it, is called Moist air Saturated air Specific humidity Dry air Moist air Saturated air Specific humidity Dry air ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning Critical pressure of a liquid is the pressure Above which liquid becomes solid Above which liquid will remain liquid Above which liquid becomes vapour Above which liquid becomes gas Above which liquid becomes solid Above which liquid will remain liquid Above which liquid becomes vapour Above which liquid becomes gas ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning For large tonnage (more than 200 TR) air-conditioning applications, the compressor recommended is Centrifugal Rotating Reciprocating Screw Centrifugal Rotating Reciprocating Screw ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The C.O.P. of a refrigeration cycle with lowering of condenser temperature, keeping the evaporator temperature constant, will Decrease May increase or decrease depending on the type of refrigerant used Increase Remain unaffected Decrease May increase or decrease depending on the type of refrigerant used Increase Remain unaffected ANSWER DOWNLOAD EXAMIANS APP
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