Refrigeration and Air Conditioning Which of the following is not a desirable property of a refrigerant? Good electrical conductor High risibility with oil Low boiling point Large latent heat Good electrical conductor High risibility with oil Low boiling point Large latent heat 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)P = ( O.P.)R + 1 ( O.P)R O.P)P = ( ( ( O.P.)P = ( O.P.)R + 2 ( O.P.)P = ( O.P)R - 1 O.P)P = ( O.P.)R + 1 ( O.P)R O.P)P = ( ( ( O.P.)P = ( O.P.)R + 2 ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The reciprocating refrigerant compressors are very suitable for Small displacements and low condensing pressures Large displacements and low condensing pressures Large displacements and high condensing pressures Small displacements and high condensing pressures Small displacements and low condensing pressures Large displacements and low condensing pressures Large displacements and high condensing pressures Small displacements and high condensing pressures ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning In mechanical refrigeration system, the refrigerant has the maximum temperature Between condenser and evaporator In evaporator Before expansion valve Between compressor and condenser Between condenser and evaporator In evaporator Before expansion valve Between compressor and condenser ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning Moisture should be removed from refrigerants to avoid All of these Restriction to refrigerant flow Corrosion of steel plates Freezing at the expansion valve All of these Restriction to refrigerant flow Corrosion of steel plates Freezing at the expansion valve ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning In a flooded evaporator refrigerator, an accumulator at suction of compressor is used to Collect liquid refrigerant and prevent it from going to compressor Detect liquid in vapour Superheat the vapour Collect vapours Collect liquid refrigerant and prevent it from going to compressor Detect liquid in vapour Superheat the vapour Collect vapours ANSWER DOWNLOAD EXAMIANS APP
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