Refrigeration and Air Conditioning Nusselt number (NN) is given by NN = μ cp/k NN = V²/t.cp NN = ρ V l /μ NN = hl/k NN = μ cp/k NN = V²/t.cp NN = ρ V l /μ NN = hl/k ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning In a saturated air-water vapour mixture, the Dry bulb temperature is higher than wet bulb temperature Dew point temperature is lower than wet bulb temperature Dry bulb, wet bulb and dew point temperature are same Dry bulb temperature is higher than dew point temperature Dry bulb temperature is higher than wet bulb temperature Dew point temperature is lower than wet bulb temperature Dry bulb, wet bulb and dew point temperature are same Dry bulb temperature is higher than dew point temperature ANSWER DOWNLOAD EXAMIANS APP
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 1: 3 1: 1 1: 9 9: 1 1: 3 1: 1 1: 9 9: 1 ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning In aircraft, air refrigeration Cycle is used because of Low temperature at high altitudes High heat transfer rate Low weight per tonne of refrigeration Higher coefficient of performance Low temperature at high altitudes High heat transfer rate Low weight per tonne of refrigeration Higher coefficient of performance ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The leakage in a refrigeration system using Freon is detected by Sulphur sticks All of these Halide torch Soap and water Sulphur sticks All of these Halide torch Soap and water ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning Air refrigeration operates on Carnot cycle Rankine’s cycle Reversed Carnot cycle Brayton cycle Carnot cycle Rankine’s cycle Reversed Carnot cycle Brayton cycle ANSWER DOWNLOAD EXAMIANS APP
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