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Process Equipment and Plant Design

Process Equipment and Plant Design
Maximum allowable vapour velocity in a bubble cap tower is determined by the

Entrainment considerations
None of these
Diameter of the column
Vapour density

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Process Equipment and Plant Design
Generally, as the length of the liquid path on a tray is increased beyond 5 ft, the overall column efficiency

Decreases
May increase or decrease depending upon the plate spacing
Increases
Remains same

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Process Equipment and Plant Design
The ideal size of round bubble caps to be used in industrial distillation column having a diameter of 3-6 metres is __________ cms.

50
5
15
7.5

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Process Equipment and Plant Design
In a shell and tube heat exchanger, the 'tube pitch' is defined as the

Shortest distance between two adj acent tube holes
Shortest centre to centre distance between adjacent tubes
None of these
O.D. of the tube for square pitch

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Process Equipment and Plant Design
Diameter of bubble caps used in high pressure columns is __________ as compared to that used in identical vacuum columns.

Either A or B; no generalisation can be made
More
Less
Same

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Process Equipment and Plant Design
What is the slope of the operating line in the stripping section of a distillation column?

< 1
> 1
?

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