Refrigeration and Air Conditioning Which of the following is not a desirable property of a refrigerant? Low boiling point Good electrical conductor Large latent heat High risibility with oil Low boiling point Good electrical conductor Large latent heat High risibility with oil ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The evaporator changes the low pressure liquid refrigerant from the expansion valve into High pressure liquid refrigerant Low pressure vapour refrigerant None of these Low pressure liquid and vapour refrigerant High pressure liquid refrigerant Low pressure vapour refrigerant None of these Low pressure liquid and vapour refrigerant ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The relative coefficient of performance is Actual COP × theoretical COP Actual COP/theoretical COP Theoretical COP/actual COP None of these Actual COP × theoretical COP Actual COP/theoretical COP Theoretical COP/actual COP None of these ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning In aircraft, air refrigeration Cycle is used because of Higher coefficient of performance High heat transfer rate Low weight per tonne of refrigeration Low temperature at high altitudes Higher coefficient of performance High heat transfer rate Low weight per tonne of refrigeration Low temperature at high altitudes ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning During sensible cooling of air, specific humidity Remains constant None of the listed here Decreases Increases Remains constant None of the listed here Decreases Increases ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning Environmental protection agencies advice against the use of chlorofluorocarbon refrigerants since These react with water vapour and cause acid rain These react with ozone layer These react with plants and cause greenhouse effect These react with oxygen and cause its depletion These react with water vapour and cause acid rain These react with ozone layer These react with plants and cause greenhouse effect These react with oxygen and cause its depletion ANSWER DOWNLOAD EXAMIANS APP
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