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Mass Transfer

Mass Transfer
__________ columns are used for liquid dispersion in a continuous gas phase.

Packed
Bubble cap
Pulse
Sieve plate

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

Vacuum shelf drier
Agitated pan drier
Fluidised bed drier
Truck drier

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Mass Transfer
Which of the following adsorbent is used to decolourise yellow glycerine?

Alumina
Fuller
Activated carbon
Silica gel

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Mass Transfer
Mass transfer co-efficient is directly proportional to DAB according to the __________ theory.

Penetration
Film
Surface-renewal
None of these

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Mass Transfer
Pick out the correct relationship. (where, Ri = internal reflux ratio Ro = external reflux ratio. )

(1 - Ro) = Ro/Ri
(1 + Ri) = Ro/Ri
(1 + Ro) = Ro/Ri
(1 - Ri) = Ro/Ri

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Mass Transfer
Flooding results in

Low tray efficiency
High tray efficiency
High gas velocity
Good contact between the fluids

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