Refrigeration and Air Conditioning The C.O.P. of a refrigerator working on a reversed Carnot cycle is (where T₁ = Lowest absolute temperature, and T₂ = Highest absolute temperature) T₂/ (T₂ - T₁) (T₁ - T₂)/T₁ T₁ / (T₂ - T₁) (T₂ - T₁)/T₁ T₂/ (T₂ - T₁) (T₁ - T₂)/T₁ T₁ / (T₂ - T₁) (T₂ - T₁)/T₁ ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The refrigerant used for absorption refrigerators working on heat from solar collectors is a mixture of water and Carbon dioxide Sulphur dioxide R-12 Lithium bromide Carbon dioxide Sulphur dioxide R-12 Lithium bromide ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The thermostatic expansion valve is used in ________ type of evaporators. DX coil Dry None of these Flooded DX coil Dry None of these Flooded ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The leakage in a refrigeration system using Freon is detected by Halide torch All of these Sulphur sticks Soap and water Halide torch All of these Sulphur sticks Soap and water ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning A valve which maintains a constant degree of superheat at the end of the evaporator coil, is called Thermostatic expansion valve Low side float valve High side float valve Automatic expansion valve Thermostatic expansion valve Low side float valve High side float valve Automatic expansion valve ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning Which of the following refrigerant has the lowest freezing point? R-12 R-22 R-11 Ammonia R-12 R-22 R-11 Ammonia ANSWER DOWNLOAD EXAMIANS APP
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