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Process Equipment and Plant Design

Process Equipment and Plant Design
The approximate liquid depth in an agitation tank is equal to (where, d = tank diameter)

D
0.75 d
0.5 d
2 d

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Process Equipment and Plant Design
In a distillation column, bubble caps are located on trays with a pitch of __________ times the outside diameter of the caps.

1.3 to 2
1.6 to 2
1.5 to 3
2.5

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Process Equipment and Plant Design
An adequate clearance between the tray and the shell wall of a distillation column is provided to

Avoid back-trapping
None of these
Allow for thermal expansion and facilitate installation
Drain the liquid from the tray when the unit is not in operation

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Process Equipment and Plant Design
In a shell and tube heat exchanger having triangular pitch, the shell side equivalent diameter is given by

4(0.86p² - πd²)/πd
(4p² - πd²/4)/πd
(p² - πd²/4)/πd
4(0.86p² - πd²/4)/πd

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Process Equipment and Plant Design
Which of the following factors determine the amount of entrainment in a distillation column?

Vapour velocity in the volume between the plates
Depth of liquid above the bubble cap slots
All of these
Plate spacing

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Process Equipment and Plant Design
Most of the storage vessels/tanks are made cylindrical, because of the fact that a cylinder

Is easy to fabricate
Has greater structural strength
Neither A nor B
Both A & B

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