Refrigeration and Air Conditioning It is desired to condition the outside air from 70% relative humidity and 45° C dry bulb temperature to 50% relative humidity and 25° C dry bulb temperature (room condition). The practical arrangement will be Dehumidification and pure sensible cooling Dehumidification Cooling and dehumidification Cooling and humidification Dehumidification and pure sensible cooling Dehumidification Cooling and dehumidification Cooling and humidification ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning In case of sensible heating of air, the coil efficiency is given by (where B.P.F. = Bypass factor) P.F. - 1 1 + B.P.F. 1 - B. P.F. 1/ B.P.F. P.F. - 1 1 + B.P.F. 1 - B. P.F. 1/ B.P.F. ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning Pressure of water vapour is given by 0.622 Pv/ (Pb - Pv) [Pv (Pb - Pd)]/ [Pd (Pb - Pv)] μ/[1 - (1 - μ) (Ps/Pb)] None of these 0.622 Pv/ (Pb - Pv) [Pv (Pb - Pd)]/ [Pd (Pb - Pv)] μ/[1 - (1 - μ) (Ps/Pb)] None of these ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning Highest pressure encountered in a refrigeration system should be Near critical pressure Critical pressure of refrigerant Much below critical pressure Much above critical pressure Near critical pressure Critical pressure of refrigerant Much below critical pressure Much above critical pressure ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning Refrigeration in aeroplanes usually employs the following refrigerant CO2 Air Freon-11 Freon-22 CO2 Air Freon-11 Freon-22 ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The wet bulb temperature during sensible heating of air None of these Remains constant Decreases Increases None of these Remains constant Decreases Increases ANSWER DOWNLOAD EXAMIANS APP
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