Refrigeration and Air Conditioning The coefficient of performance (C.O.P.) of a refrigerator working as a heat pump is given by O.P.)P = ( O.P.)R + 1 O.P)P = ( ( ( O.P)P = ( O.P)R O.P.)R + 2 ( ( O.P.)P = ( O.P)R - 1 O.P.)P = ( O.P.)R + 1 O.P)P = ( ( ( O.P)P = ( O.P)R O.P.)R + 2 ( ( O.P.)P = ( O.P)R - 1 ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The refrigerant after condensation process is cooled below the saturation temperature before throttling. Such a process is called Normal cooling None of the listed here Sub-cooling or under-cooling Super-cooling Normal cooling None of the listed here Sub-cooling or under-cooling Super-cooling ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning In order to cool and dehumidify a stream of moist air, it must be passed over the coil at a temperature Of adiabatic saturation of incoming stream Which lies between the dry bulb and wet bulb temperatures of the incoming stream Which lies between the wet bulb and dew point temperatures of the incoming stream Which is lower than the dew point temperature of the incoming stream Of adiabatic saturation of incoming stream Which lies between the dry bulb and wet bulb temperatures of the incoming stream Which lies between the wet bulb and dew point temperatures of the incoming stream Which is lower than the dew point temperature of the incoming stream ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning Air refrigeration cycle is used in Air conditioning Commercial refrigerators Domestic refrigerators Gas liquefaction Air conditioning Commercial refrigerators Domestic refrigerators Gas liquefaction ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning Formation of frost on evaporator in refrigerator Increases heat transfer rate Results in loss of heat due to poor heat transfer Is immaterial Can be avoided by proper design Increases heat transfer rate Results in loss of heat due to poor heat transfer Is immaterial Can be avoided by proper design ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning In vapour compression cycle, the condition of refrigerant is saturated liquid After passing through the condenser After passing through the expansion throttle valve Before passing through the condenser Before entering the expansion valve After passing through the condenser After passing through the expansion throttle valve Before passing through the condenser Before entering the expansion valve ANSWER DOWNLOAD EXAMIANS APP
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