Refrigeration and Air Conditioning One of the purposes of sub cooling the liquid refrigerant is to Increase cooling effect Ensure that only liquid and not the vapour enters the expansion (throttling) valve Reduce compressor discharge temperature Reduce compressor overheating Increase cooling effect Ensure that only liquid and not the vapour enters the expansion (throttling) valve Reduce compressor discharge temperature Reduce compressor overheating ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The mass of water vapour present in __________ is called absolute humidity. 1 kg of dry air 1 m3 of dry air 1 m3 of water 1 kg of wet air 1 kg of dry air 1 m3 of dry air 1 m3 of water 1 kg of wet air ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning Moisture in Freon refrigeration system causes Ineffective refrigeration Corrosion of whole system Freezing automatic regulating valve High power consumption Ineffective refrigeration Corrosion of whole system Freezing automatic regulating valve High power consumption ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning In order to collect liquid refrigerant and to prevent it from going to a ________, a device known as accumulator is used at the suction of compressor. Compressor Condenser Expansion valve Evaporator Compressor Condenser Expansion valve Evaporator ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning An infinite parallel planes with emissivities e₁ and e₂, the interchange factor for radiation from surface 1 to surface 2 is given by e₁e₂ 1/e₁ + 1/e₂ e₁ + e₂ (e₁ + e₂)/ e₁ + e₂ - e₁e₂ e₁e₂ 1/e₁ + 1/e₂ e₁ + e₂ (e₁ + e₂)/ e₁ + e₂ - e₁e₂ ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The evaporator changes the low pressure liquid refrigerant from the expansion valve into Low pressure vapour refrigerant High pressure liquid refrigerant None of these Low pressure liquid and vapour refrigerant Low pressure vapour refrigerant High pressure liquid refrigerant None of these Low pressure liquid and vapour refrigerant ANSWER DOWNLOAD EXAMIANS APP
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