Refrigeration and Air Conditioning The bypass factor of a cooling coil decreases with Increase in fin spacing and decrease in number of rows Decrease in fin spacing and increase in number of rows Decrease in fin spacing and decrease in number of rows Increase in fin spacing and increase in number of rows Increase in fin spacing and decrease in number of rows Decrease in fin spacing and increase in number of rows Decrease in fin spacing and decrease in number of rows Increase in fin spacing and increase in number of rows ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The lower horizontal line of the refrigeration cycle plotted on pressure-enthalpy diagram represents Compression of the refrigerant vapour Evaporation of the refrigerant liquid Condensation of the refrigerant vapour Metering of the refrigerant liquid Compression of the refrigerant vapour Evaporation of the refrigerant liquid Condensation of the refrigerant vapour Metering of the refrigerant liquid ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning A refrigerating system operating on reversed Brayton refrigeration cycle is used for maintaining 250 K. If the temperature at the end of constant pressure cooling is 300 K and rise in the temperature of air in the refrigerator is 50 K, then the net work of compression will be (assume air as working substance with Cp = 1 kJ/kg) 25 kJ/kg 100 kJ/kg 50 kJ/kg 125 kJ/kg 25 kJ/kg 100 kJ/kg 50 kJ/kg 125 kJ/kg ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The relative coefficient of performance is equal to (Theoretical C.O.P.)/ (Actual C.O.P.) (Actual C.O.P.) /(Theoretical C.O.P.) None of these (Actual C.O.P.) × (Theoretical C.O.P.) (Theoretical C.O.P.)/ (Actual C.O.P.) (Actual C.O.P.) /(Theoretical C.O.P.) None of these (Actual C.O.P.) × (Theoretical C.O.P.) ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning In chemical dehumidification process, Wet bulb temperature decreases All of these Dry bulb temperature increases Dew point temperature decreases Wet bulb temperature decreases All of these Dry bulb temperature increases Dew point temperature decreases ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning In which of the following refrigeration system, waste heat can be effectively used? Vapour absorption cycle Air refrigeration cycle None of the listed here Vapour compression cycle Vapour absorption cycle Air refrigeration cycle None of the listed here Vapour compression cycle ANSWER DOWNLOAD EXAMIANS APP
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