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Process Equipment and Plant Design

Process Equipment and Plant Design
__________ liquor is best handled in a long tube vertical evaporator.

Scaling
Salting
Viscous
Foamy

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Process Equipment and Plant Design
What is the value of 'q' for saturated vapor feed to a distillation column ?(where q = fraction of the feed stream that is liquid.)

> 1
1

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Process Equipment and Plant Design
For annular flow of a fluid, the ratio of the equivalent diameter for pressure drop calculation to the equivalent diameter for heat transfer calculation is

D2/(d1 + d2)
(d1 + d2)/d1
D1/(d1 + d2)
(d1 + d2)/d2

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Process Equipment and Plant Design
In a continuous distillation column, the optimum reflux ratio ranges from __________ times the minimum reflux ratio.

1.1 to 1.5
2.7 to 3
1.6 to 2
2.2 to 2.6

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Process Equipment and Plant Design
In common bubble cap distillation column design practice, riser area is approximately equal to (where, Aa = Annular passage area, and Sa = Slot area)

Sa = 1.5 Aa
1.2 Aa = 1.2 Sa
Aa = 1.5 Sa
Aa = Sa

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Process Equipment and Plant Design
Which of the following is not a graphical method (but is an analytical method) for the calculation of theoretical number of stages in case of continuous binary distillation?

Ponchon-Savarit method
Sorel-Lewis method
McCabe-Thiele's method
None of these

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