Refrigeration and Air Conditioning Which of the following refrigerant has the maximum ozone depletion potential in the stratosphere? Fluorine Ammonia Sulphur dioxide Carbon dioxide Fluorine Ammonia Sulphur dioxide Carbon dioxide ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning When the lower temperature of a refrigerating machine is fixed, then the coefficient of performance can be improved by Lowering the higher temperature Raising the higher temperature Operating the machine at higher speeds Operating the machine at lower speeds Lowering the higher temperature Raising the higher temperature Operating the machine at higher speeds Operating the machine at lower speeds ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The colour of the flame of halide torch, in case of leakage of Freon refrigerant, will change to Red Bright green Yellow Orange Red Bright green Yellow Orange ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning Moisture should be removed from refrigerants to avoid Freezing at the expansion valve Restriction to refrigerant flow All of these Corrosion of steel plates Freezing at the expansion valve Restriction to refrigerant flow All of these Corrosion of steel plates ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning Rating of a domestic refrigerator is of the order of 0.1 ton 40 tons 10 tons 5 tons 0.1 ton 40 tons 10 tons 5 tons ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The C.O.P. of an absorption type refrigerator is given by (where T₁ = Temperature at which the working substance receives heat, T₂ = Temperature of cooling water, and T₃ = Evaporator temperature) [T₃ (T₂ - T₃)] / [T₁ (T₁ - T₂)] [T₁ (T₂ - T₃)] / [T₃ (T₁ - T₂)] [T₁ (T₁ - T₂)] / [T₃ (T₂ - T₃)] [T₃ (T₁ - T₂)]/ [T₁ (T₂ - T₃)] [T₃ (T₂ - T₃)] / [T₁ (T₁ - T₂)] [T₁ (T₂ - T₃)] / [T₃ (T₁ - T₂)] [T₁ (T₁ - T₂)] / [T₃ (T₂ - T₃)] [T₃ (T₁ - T₂)]/ [T₁ (T₂ - T₃)] ANSWER DOWNLOAD EXAMIANS APP
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