Refrigeration and Air Conditioning Environmental protection agencies advice against the use of chlorofluorocarbon refrigerants since These react with plants and cause greenhouse effect These react with water vapour and cause acid rain These react with ozone layer These react with oxygen and cause its depletion These react with plants and cause greenhouse effect These react with water vapour and cause acid rain These react with ozone layer These react with oxygen and cause its depletion ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning Hydrogen is used in Electrolux refrigeration system so as to _________ the rate of evaporation of the liquid ammonia passing through the evaporator. None of these Equalize Increase Reduce None of these Equalize Increase Reduce ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning In a pressure enthalpy chart, the space to the left of the saturated liquid line represents Wet vapour region Superheated vapour region None of the listed here Sub-cooled liquid region Wet vapour region Superheated vapour region None of the listed here Sub-cooled liquid region ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning In a refrigeration system, heat absorbed in comparison to heat rejected is Same Less More More for small capacity and less for high capacity Same Less More More for small capacity and less for high capacity ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning In mechanical refrigeration system, the refrigerant has the maximum temperature Between compressor and condenser In evaporator Between condenser and evaporator Before expansion valve Between compressor and condenser In evaporator Between condenser and evaporator Before expansion valve ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning An important characteristic of absorption system of refrigeration is very little power consumption quiet operation noisy operation cooling below 0°C very little power consumption quiet operation noisy operation cooling below 0°C ANSWER DOWNLOAD EXAMIANS APP
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