Refrigeration and Air Conditioning A pressure gauge on the discharge side of a refrigerant compressor reads too high. The reasons will be Dirty condenser surface All of these Water temperature being high Lack of cooling water Dirty condenser surface All of these Water temperature being high Lack of cooling water ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The C.O.P. of a refrigerator working on a reversed Carnot cycle is (where T₁ = Lowest absolute temperature, and T₂ = Highest absolute temperature) T₁ / (T₂ - T₁) (T₁ - T₂)/T₁ T₂/ (T₂ - T₁) (T₂ - T₁)/T₁ T₁ / (T₂ - T₁) (T₁ - T₂)/T₁ T₂/ (T₂ - T₁) (T₂ - T₁)/T₁ ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The sub-cooling in a refrigeration cycle Does not alter C.O.P. Decreases C.O.P. Increases C.O.P. None of these Does not alter C.O.P. Decreases C.O.P. Increases C.O.P. None of these ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The temperature of air recorded by a thermometer, when its bulb is surrounded by a wet cloth exposed to the air, is called None of these Dew point temperature Wet bulb temperature Dry bulb temperature None of these Dew point temperature Wet bulb temperature Dry bulb temperature ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning A vapour absorption refrigeration system Requires little power consumption Gives quiet operation Cools below 0°C Gives noisy operation Requires little power consumption Gives quiet operation Cools below 0°C Gives noisy operation ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The relative coefficient of performance is equal to (Actual C.O.P.) × (Theoretical C.O.P.) (Actual C.O.P.) /(Theoretical C.O.P.) (Theoretical C.O.P.)/ (Actual C.O.P.) None of these (Actual C.O.P.) × (Theoretical C.O.P.) (Actual C.O.P.) /(Theoretical C.O.P.) (Theoretical C.O.P.)/ (Actual C.O.P.) None of these ANSWER DOWNLOAD EXAMIANS APP
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