Refrigeration and Air Conditioning The relative coefficient of performance is Actual COP/theoretical COP None of these Theoretical COP/actual COP Actual COP × theoretical COP Actual COP/theoretical COP None of these Theoretical COP/actual COP Actual COP × theoretical COP ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning A good refrigerant should have High latent heat of vaporisation and low freezing point High operating pressures and low freezing point High specific volume and high latent heat of vaporisation Low C.O.P. and low freezing point High latent heat of vaporisation and low freezing point High operating pressures and low freezing point High specific volume and high latent heat of vaporisation Low C.O.P. and low freezing point ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning Which of the following refrigerant has the highest freezing point. Carbon dioxide Ammonia R-12 Sulphur dioxide Carbon dioxide Ammonia R-12 Sulphur dioxide ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning In a refrigeration system, the expansion device is connected between the Evaporator and compressor Condenser and receiver Compressor and condenser Receiver and evaporator Evaporator and compressor Condenser and receiver Compressor and condenser Receiver and evaporator ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning A human body feels comfortable when the heat produced by the metabolism of human body is equal to the Difference of (A) and (B) Heat stored in the human body Heat dissipated to the surroundings Sum of (A) and (B) Difference of (A) and (B) Heat stored in the human body Heat dissipated to the surroundings Sum of (A) and (B) 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 Effective temperature Mean radiant temperature None of the listed here Dew point temperature Effective temperature Mean radiant temperature None of the listed here Dew point temperature ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS