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Mass Transfer

Mass Transfer
__________ column is used in gas absorption process.

Seive/perforated tray
Bubble cap
Packed
Wetted wall

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

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

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Mass Transfer
The solvent used in liquid-liquid extraction should have __________ less than one.

Neither A nor B
Selectivity
Distribution co-efficient
Both A & B

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Mass Transfer
Unsaturated air (with dry and wet bulb temperatures being 35 and 25°C respectively) is passed through water spray chamber maintained at 35°C. The air will be

Both A & B
Cooled
Dehumidified
Humidified

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Mass Transfer
To increase the absorption factor, (where, G = gas flow rate, S = solvent flow rate)

Increase 'S' and decrease 'G'
Increase 'G' and decrease 'S'
Decrease both 'G' and 'S'
Increase both 'G' and 'S'

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Mass Transfer
Drift in a cooling tower is

The water entrained by the circulating air
Dependent on the water lost by evaporation
All of these
Desirable

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