Mass Transfer Which one of the following devices is not used for both the absorption as well as the liquid-liquid extraction processes? Spray towers Wetted wall columns Packed towers Plate towers Spray towers Wetted wall columns Packed towers Plate towers ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer The Kundsen diffusivity is proportional to (where, T = absolute temperature) T T⁴ T² √T T T⁴ T² √T ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Which of the following processes is followed by unsaturated air (with dry bulb temperature 12°C and relative humidity 47%) passing through water spray washer (temperature of water being constant at 40°C? Evaporative cooling Heating only Both heating and humidification Humidification only Evaporative cooling Heating only Both heating and humidification Humidification only ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Dew point of an air-water vapor mixture All of the listed here Decreases with decrease in pressure Corresponding to any point on the humidity chart is obtained by projecting a line through this point parallel to the temperature axis and to the saturation curve At constant humidity & total pressure is fixed All of the listed here Decreases with decrease in pressure Corresponding to any point on the humidity chart is obtained by projecting a line through this point parallel to the temperature axis and to the saturation curve At constant humidity & total pressure is fixed ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer The cooling effect in a cooling tower can be speeded up by Reducing the humidity of the air Increasing the air velocity and area of exposed wet surface All of the listed here Reducing the barometric pressure Reducing the humidity of the air Increasing the air velocity and area of exposed wet surface All of the listed here Reducing the barometric pressure ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer In a counter-current extractor, as the axial mixing increases, the extraction efficiency Depends on the pressure of the system Remains unchanged Increases Decreases Depends on the pressure of the system Remains unchanged Increases Decreases ANSWER DOWNLOAD EXAMIANS APP
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