Refrigeration and Air Conditioning Mass flow ratio of NH₃ in comparison to Freon-12 for same refrigeration load and same temperature limits is of the order of 9: 1 1: 1 1: 9 1: 3 9: 1 1: 1 1: 9 1: 3 ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The power per tonne of refrigeration is None of these 3.5/C.O.P. 3.5 × C.O.P. O.P/3.5 None of these 3.5/C.O.P. 3.5 × C.O.P. O.P/3.5 ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The boiling point of ammonia is -33.3°C -30°C -10.5°C -77.7°C -33.3°C -30°C -10.5°C -77.7°C ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning Efficiency of a Carnot engine is given as 80%. If the cycle direction be reversed, what will be the value of C.O.P. of reversed Carnot Cycle? 0.5 1.25 0.25 0.8 0.5 1.25 0.25 0.8 ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning Nusselt number (NN) is given by NN = μ cp/k NN = hl/k NN = V²/t.cp NN = ρ V l /μ NN = μ cp/k NN = hl/k NN = V²/t.cp NN = ρ V l /μ ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning Which of the following refrigerant has the maximum ozone depletion potential in the stratosphere? Ammonia Sulphur dioxide Fluorine Carbon dioxide Ammonia Sulphur dioxide Fluorine Carbon dioxide ANSWER DOWNLOAD EXAMIANS APP
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