Refrigeration and Air Conditioning The C.O.P. of a refrigeration cycle with lowering of condenser temperature, keeping the evaporator temperature constant, will Decrease May increase or decrease depending on the type of refrigerant used Remain unaffected Increase Decrease May increase or decrease depending on the type of refrigerant used Remain unaffected Increase ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The freezing point of R-12 is -95.2°C -86.6°C -135.8°C -107.7°C -95.2°C -86.6°C -135.8°C -107.7°C ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning Freon group of refrigerants are Toxic Nontoxic and non-inflammable Non-inflammable and toxic Inflammable Toxic Nontoxic and non-inflammable Non-inflammable and toxic Inflammable ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning Hydrogen is used in Electrolux refrigeration system so as to _________ the rate of evaporation of the liquid ammonia passing through the evaporator. Equalize Increase Reduce None of these Equalize Increase Reduce None of these ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The thermostatic expansion valve is used in ________ type of evaporators. Flooded None of these Dry DX coil Flooded None of these Dry DX coil ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning A reversible engine has ideal thermal efficiency of 30%. When it is used as a refrigerating machine with all other conditions unchanged, the coefficient of performance will be 1.33 2.33 4.33 3.33 1.33 2.33 4.33 3.33 ANSWER DOWNLOAD EXAMIANS APP