Refrigeration and Air Conditioning A refrigerant compressor is used to All of these Raise the pressure of the refrigerant Raise the temperature of the refrigerant Circulate the refrigerant through the refrigerating system All of these Raise the pressure of the refrigerant Raise the temperature of the refrigerant Circulate the refrigerant through the refrigerating system 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.)P = ( ( O.P)R - 1 ( O.P.)R + 1 O.P)R O.P.)R + 2 O.P)P = ( O.P)P = ( O.P.)P = ( ( ( O.P.)P = ( ( O.P)R - 1 ( O.P.)R + 1 O.P)R O.P.)R + 2 O.P)P = ( O.P)P = ( O.P.)P = ( ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning Vertical lines on pressure-enthalpy chart show constant Pressure lines Total heat lines Entropy lines Temperature lines Pressure lines Total heat lines Entropy lines Temperature lines ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning In vapour compression cycle, the condition of refrigerant is saturated liquid After passing through the expansion throttle valve After passing through the condenser Before entering the expansion valve Before passing through the condenser After passing through the expansion throttle valve After passing through the condenser Before entering the expansion valve Before passing through the condenser ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning Allowable pressure on high pressure side or ammonia absorption system is of the order of Atmospheric pressure Slightly above atmospheric pressure 56 bars 24 bars Atmospheric pressure Slightly above atmospheric pressure 56 bars 24 bars ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The capillary tube, as an expansion device, is used in Room air conditioners Water coolers Domestic refrigerators All of these Room air conditioners Water coolers Domestic refrigerators All of these ANSWER DOWNLOAD EXAMIANS APP
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