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? Heating only Evaporative cooling Humidification only Both heating and humidification Heating only Evaporative cooling Humidification only Both heating and humidification ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer In case of an absorber, the operating Line always lies above the equilibrium curve Line always lies below the equilibrium curve Velocity is more than the loading velocity Line can be either above or below the equilibrium curve Line always lies above the equilibrium curve Line always lies below the equilibrium curve Velocity is more than the loading velocity Line can be either above or below the equilibrium curve ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Low viscosity absorbent is preferred for reasons of Low pressure drop on pumping Improved flooding characteristics Rapid absorption rates and good heat transfer characteristics All of these Low pressure drop on pumping Improved flooding characteristics Rapid absorption rates and good heat transfer characteristics All of these ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer With increase in temperature, the leaching rate increases due to Decreased liquid viscosity Increased diffusivity Both A & B Neither A nor B Decreased liquid viscosity Increased diffusivity Both A & B Neither A nor B ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer In a packed bed absorption column, the channelling will be noted by the None of these Increase in flow rate Sharp drop in pressure drop Sharp rise in pressure drop None of these Increase in flow rate Sharp drop in pressure drop Sharp rise in pressure drop ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Absorption (liquid-gas system) with evolution of heat as compared to isothermal absorption results in Large minimum liquid to gas (L/G) ratio All of these Large number of trays Decreased solute solubility Large minimum liquid to gas (L/G) ratio All of these Large number of trays Decreased solute solubility ANSWER DOWNLOAD EXAMIANS APP
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