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Mass Transfer

Mass Transfer
In paper industry, paper is dried in a __________ dryer.

Tunnel
Conveyor
Festoon
Heated cylinder

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Mass Transfer
In a packed absorption tower, if the equilibrium and operating lines are both straight lines, then the ratio, HETP/HTUOG __________ the absorption factor.

Is one at unity value of
Increases with increase in
Both A and B
Neither A nor B

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Mass Transfer
Packed column distillation is limited to the column __________ metres.

Neither A nor B
Both A & B
Height < 6
Diameter < 0.6

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Mass Transfer
The diffusivity (D) in a binary gas mixture is related to the pressure (P) as

D ∝ 1/P1.5
D ∝ 1/P0.5
D ∝ 1/P
D ∝ P0.5

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Mass Transfer
__________ column is used in gas absorption process.

Bubble cap
Wetted wall
Packed
Seive/perforated tray

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Mass Transfer
Dry bulb temperature of unsaturated air is more than its __________ temperature.

Both A & B
Wet bulb
Dew point
Neither A nor B

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