Mass Transfer A natural draft cooling tower is filled with wooden grids, which covers about __________ percent of the tower height. 90-100 70-80 44119 30-40 90-100 70-80 44119 30-40 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Plate towers are preferred to packed towers, when large temperature changes are involved, because of the reason that the Viscosity variation of the fluids may cause channeling/flooding None of these Pressure drop in the equipment will be very high Packing may be crushed due to thermal expansion/contraction of the components of the equipments Viscosity variation of the fluids may cause channeling/flooding None of these Pressure drop in the equipment will be very high Packing may be crushed due to thermal expansion/contraction of the components of the equipments ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Which of the following plays an important role in problems of simultaneous heat and mass transfer? Lewis number Prandtl number Schmidt number Sherwood number Lewis number Prandtl number Schmidt number Sherwood number ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Dew point of an air-water vapor mixture 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 All of the listed here At constant humidity & total pressure is fixed 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 All of the listed here At constant humidity & total pressure is fixed ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Can a cooling tower cool water below the wet bulb temperature of inlet air? Yes ; but height of cooling tower will be prohibitively high No Yes ; but the air flow rate should be excessively high Yes Yes ; but height of cooling tower will be prohibitively high No Yes ; but the air flow rate should be excessively high Yes ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer With increase in temperature, the rate of leaching increases, because the Thermal conductivity of solute increases Viscosity of solvent decreases Diffusivity of solute increases None of these Thermal conductivity of solute increases Viscosity of solvent decreases Diffusivity of solute increases None of these ANSWER DOWNLOAD EXAMIANS APP
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