Mass Transfer
Which of the following employs an accessory known as 'drift eliminator' ?

Mechanical draft cooling tower
Multiple effect evaporator
Rotating disc contactor
Rotary dryer

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Mass Transfer
For water-ethanol system, the minimum reflux ratio

Is computed from the slope of the upper operating line that is tangent to the equilibrium curve
Cannot be computed
Is computed from the intercept of the operating line
Is the optimum reflux ratio

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Mass Transfer
Heat load in a cooling tower

Is equal to the number of kg, of water circulated times the cooling range
Both A & B
Means the amount of heat thrown away (KCal/hr.) by the cooling tower
Neither A nor B

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