Refrigeration and Air Conditioning The heat rejection factor (HRF) is given by 1 - (1/C.O.P) 1 + C.O.P 1 - C.O.P. 1 + (1/C.O.P) 1 - (1/C.O.P) 1 + C.O.P 1 - C.O.P. 1 + (1/C.O.P) ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning In a vapour compression system, the condition of refrigerant before passing through the condenser is Wet vapour Saturated liquid Dry saturated vapour Superheated vapour Wet vapour Saturated liquid Dry saturated vapour Superheated vapour 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. Equalize Increase Reduce None of these Equalize Increase Reduce None of these ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The index which correlates the combined effects of air temperature, relative humidity and air velocity on the human body, is known as None of the listed here Dew point temperature Effective temperature Mean radiant temperature None of the listed here Dew point temperature Effective temperature Mean radiant temperature ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The coefficient of performance (C.O.P.) of a refrigerator working as a heat pump is given by O.P.)R + 1 ( O.P.)P = ( O.P)R O.P)P = ( ( O.P)P = ( ( O.P.)R + 2 O.P)R - 1 ( O.P.)P = ( O.P.)R + 1 ( O.P.)P = ( O.P)R O.P)P = ( ( O.P)P = ( ( O.P.)R + 2 O.P)R - 1 ( O.P.)P = ( ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The temperature of ammonia after compression in a vapour compression system is 50 to 70°C None of these 20 to 50°C 70 to 110°C 50 to 70°C None of these 20 to 50°C 70 to 110°C ANSWER DOWNLOAD EXAMIANS APP
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