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Mass Transfer

Mass Transfer
Free flowing granular materials can be best dried in a __________ drier.

Cylinder
Rotary
Freeze
Drun

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Mass Transfer
Swenson-Walker crystalliser is a __________ unit

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

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Mass Transfer
In McCabe-Thiele method of theoretical plate calculation for a distillation column, the operating lines of stripping and rectifying sections coincide with the diagonal at __________ reflux.

Minimum
Operating
Maximum permissible
Total

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Mass Transfer
Plate efficiency in a distillation column is reduced due to the __________ of liquid.

Foaming
Weeping & dumping
All of these
Entrainment

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Mass Transfer
Which of the following same diameter columns gives lowest pressure drop per unit height?

Bubble-cap column
Packed column (stacked)
Sieve-plate column
Randomly packed column

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Mass Transfer
Penetration theory relates the average mass transfer co-efficient (K) with diffusivity (D) as

K ∝ √D
K ∝ D1.5
K ∝ D2
K ∝ D

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