Mass Transfer Which of the following employs an accessory known as 'drift eliminator' ? Rotary dryer Rotating disc contactor Mechanical draft cooling tower Multiple effect evaporator Rotary dryer Rotating disc contactor Mechanical draft cooling tower Multiple effect evaporator ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer In continuous distillation, the internal reflux ratio (Ri) and the external reflux ratio (Re) are related as Ri = Re Ri = Re/(1 + Re) Ri = Re/(1 - Re) Ri = (1 - Re)/Re Ri = Re Ri = Re/(1 + Re) Ri = Re/(1 - Re) Ri = (1 - Re)/Re 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, increases surface area Increases pressure drop, decreases surface area Decreases pressure drop, increases surface area Decreases pressure drop, decreases surface area Increases pressure drop, increases surface area Increases pressure drop, decreases surface area Decreases pressure drop, increases surface area ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer In McCabe-Thiele method, at infinite reflux ratio The overhead product is minimum Both A & B Neither A nor B Both the operating lines coincide with diagonal The overhead product is minimum Both A & B Neither A nor B Both the operating lines coincide with diagonal ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Packed column distillation is limited to the column __________ metres. Neither A nor B Both A & B Diameter < 0.6 Height < 6 Neither A nor B Both A & B Diameter < 0.6 Height < 6 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer In a single stage extraction process, 10 kg of pure solvent S (containing no solute A) is mixed with 30 kg of feed F containing A at a mass fraction xf = 0.2. The mixture splits into an extract phase E and a raf-finate phase R containing A at xB = 0.5 and xR = 0.05 respectively. The total mass of the extract phase is (in Kg) 8.89 8.25 6.89 10 8.89 8.25 6.89 10 ANSWER DOWNLOAD EXAMIANS APP
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