Mass Transfer The humid volume may be increased by increasing the Temperature at constant humidity Humidity at constant temperature Both A & B Neither A nor B Temperature at constant humidity Humidity at constant temperature Both A & B Neither A nor B 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 None of these Pressure drop in the equipment will be very high Viscosity variation of the fluids may cause channeling/flooding Packing may be crushed due to thermal expansion/contraction of the components of the equipments None of these Pressure drop in the equipment will be very high Viscosity variation of the fluids may cause channeling/flooding Packing may be crushed due to thermal expansion/contraction of the components of the equipments ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Use of raschig rings in place of crushed stones as packing in packed beds (other things being same) Decreases pressure drop, decreases surface area Increases pressure drop, decreases surface area Increases pressure drop, increases surface area Decreases pressure drop, increases surface area Decreases pressure drop, decreases surface area Increases pressure drop, decreases surface area Increases pressure drop, increases surface area Decreases pressure drop, increases surface area ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Prandtl number for water at 20°C is about 7 70 150 0.7 7 70 150 0.7 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Blowdown in a cooling tower All of these Is undesirable Means discarding a small fraction of circulating water to prevent and limit the concentration of salt and impurities Increases the scale forming tendencies of water All of these Is undesirable Means discarding a small fraction of circulating water to prevent and limit the concentration of salt and impurities Increases the scale forming tendencies of water ANSWER DOWNLOAD EXAMIANS APP
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