Refrigeration and Air Conditioning The specific humidity during cooling and dehumidification Remains constant None of these Increases Decreases Remains constant None of these Increases Decreases ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning One of the purposes of sub cooling the liquid refrigerant is to Reduce compressor discharge temperature Increase cooling effect Ensure that only liquid and not the vapour enters the expansion (throttling) valve Reduce compressor overheating Reduce compressor discharge temperature Increase cooling effect Ensure that only liquid and not the vapour enters the expansion (throttling) valve Reduce compressor overheating ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning During heating and humidification, the final relative humidity of air None of the listed here Can be lower or higher than that of the entering air Is lower than that of the entering air Is higher than that of the entering air None of the listed here Can be lower or higher than that of the entering air Is lower than that of the entering air Is higher than that of the entering air ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning In a vapour compression system, the condition of refrigerant before entering the expansion or throttle valve is High pressure saturated liquid Dry vapour Wet vapour Very wet vapour High pressure saturated liquid Dry vapour Wet vapour Very wet vapour ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning For ammonia refrigerating systems, the tubes of a shell and tube condenser are made of Aluminium Brass Steel Copper Aluminium Brass Steel Copper ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning Which of the following is not a desirable property of a refrigerant? Large latent heat High risibility with oil Low boiling point Good electrical conductor Large latent heat High risibility with oil Low boiling point Good electrical conductor ANSWER DOWNLOAD EXAMIANS APP
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