Refrigeration and Air Conditioning Nusselt number (NN) is given by NN = V²/t.cp NN = hl/k NN = ρ V l /μ NN = μ cp/k NN = V²/t.cp NN = hl/k NN = ρ V l /μ NN = μ cp/k ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning Wet bulb temperature is the temperature of air recorded by a thermometer, when None of these It is not affected by the moisture present in the air Its bulb is surrounded by a wet cloth exposed to the air The moisture present in it begins to condense None of these It is not affected by the moisture present in the air Its bulb is surrounded by a wet cloth exposed to the air The moisture present in it begins to condense ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning During heating and dehumidification process, dry bulb temperature None of these Remains constant Decreases Increases None of these Remains constant Decreases Increases 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 Orange Yellow Red Bright green Orange Yellow Red Bright green ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The ratio of actual mass of water vapour in a given volume of moist air to the mass of water vapour in the same volume of saturated air at the same temperature and pressure, is called Degree of saturation Absolute humidity Relative humidity Humidity ratio Degree of saturation Absolute humidity Relative humidity Humidity ratio ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning In vapour compression cycle, the condition of refrigerant is saturated liquid After passing through the condenser Before passing through the condenser Before entering the expansion valve After passing through the expansion throttle valve After passing through the condenser Before passing through the condenser Before entering the expansion valve After passing through the expansion throttle valve ANSWER DOWNLOAD EXAMIANS APP
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