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Mass Transfer

Mass Transfer
Which of the following is not a continuous drier?

Tray drier
Spray drier
Tunnel drier
Drum drier

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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

Dehumidified
Humidified
Both A & B
Cooled

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Mass Transfer
Total reflux in a distillation operation requires minimum

Number of plates
All of these
Condenser load
Reboiler load

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Mass Transfer
Swenson-Walker crystalliser is a __________ unit

Cooling (adiabatic)-cum-evaporation
Continuous
Batch
Semi-batch

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Mass Transfer
The value of Lewis number (Le = Sc/Pr) for air-water vapour system is around

3.97
1
600
0.24

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Mass Transfer
Dorr thickener is an equipment used for

Classification
Sedimentation
Clarification
Leaching

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