Refrigeration and Air Conditioning In a pressure enthalpy chart, the space to the left of the saturated liquid line represents None of the listed here Sub-cooled liquid region Wet vapour region Superheated vapour region None of the listed here Sub-cooled liquid region Wet vapour region Superheated vapour region ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning Which of the following refrigerant has the highest freezing point. R-12 Sulphur dioxide Ammonia Carbon dioxide R-12 Sulphur dioxide Ammonia Carbon dioxide 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 O.P)P = ( O.P.)P = ( O.P)P = ( ( O.P)R - 1 O.P.)P = ( ( O.P.)R + 1 O.P.)R + 2 ( ( O.P)R O.P)P = ( O.P.)P = ( O.P)P = ( ( O.P)R - 1 O.P.)P = ( ( O.P.)R + 1 O.P.)R + 2 ( ( ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The atmospheric air at dry bulb temperature of 15°C enters a heating coil maintained at 40°C. The air leaves the heating coil at 25°C. The bypass factor of the heating coil is 0.67 0.4 0.6 0.376 0.67 0.4 0.6 0.376 ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning Most air cooled condensers are designed to operate with a temperature difference of 14°C 8°C 22°C 5°C 14°C 8°C 22°C 5°C ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The heat rejection factor (HRF) is given by 1 - (1/C.O.P) 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. ANSWER DOWNLOAD EXAMIANS APP
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