Mass Transfer In a moderately sized packed absorption tower, channeling (which is most severe with stacked packings) can be minimised by taking the ratio of tower diameter to packing diameter < 6:1 < 8 : 1 > 4 :1 > 8:1 < 6:1 < 8 : 1 > 4 :1 > 8:1 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer In a distillation operation, what is the effect of the temperature of the reflux stream (given below) on the condenser and reboiler loads? Reflux conditions:(i) Reflux stream is completely liquid and is at its bubble point.(ii) Reflux stream is below its bubble point. Reboiler load is the same in both the cases but condenser load is higher in case (ii) Condenser and reboiler loads are the same in both the cases Both condensor and reboiler loads are higher in case (ii) as compared to case (i) Condenser load is the same in both the cases but reboiler load is higher in case (ii) Reboiler load is the same in both the cases but condenser load is higher in case (ii) Condenser and reboiler loads are the same in both the cases Both condensor and reboiler loads are higher in case (ii) as compared to case (i) Condenser load is the same in both the cases but reboiler load is higher in case (ii) ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer If f is defined as above, then which of the following applies to a feed at dew point? F < 1 F = 1 F > 1 0 < f < 1 F < 1 F = 1 F > 1 0 < f < 1 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Which of the following parameters remains almost constant during adiabatic saturation of unsaturated air? Dry bulb temperature Wet bulb temperature Dew point None of these Dry bulb temperature Wet bulb temperature Dew point None of these ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Which of the following employs an accessory known as 'drift eliminator' ? Rotary dryer Mechanical draft cooling tower Rotating disc contactor Multiple effect evaporator Rotary dryer Mechanical draft cooling tower Rotating disc contactor Multiple effect evaporator ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer For the same process conditions, the reflux ratio of an unlagged distillation column Decreases in winter None of these Increases in winter Increases in summer Decreases in winter None of these Increases in winter Increases in summer ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS