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Process Equipment and Plant Design

Process Equipment and Plant Design
The equivalent diameter for fluid flow through a channel of constant non-circular cross section of area 'A' is given by (where, P = perimeter of the channel in contact with the fluid)

4 A/P
4 P/A
A/P
√A

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Process Equipment and Plant Design
Le/D for fully open gate valves would be

Much less (say 2% than that for fully open globe valves)
Both B and C
Much more than that for fully open globe valves
Around 7

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Process Equipment and Plant Design
Diameter of the seive tray column is determined by the

Height of the plate spacing
Hole diameter of the seive tray
Lower limit of vapour velocity
Upper limit of the vapour velocity

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Process Equipment and Plant Design
Pressure drop per tray in the atmospheric distillation column is about __________ psi.

0.01 - 0.5
43833
0.5 - 1.0
0.07 - 0.12

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Process Equipment and Plant Design
For a given design of bubble cap, the number of bubble caps to be used per tray is set by the

Diameter of the column
Plate spacing
All of these
Allowable gas velocity through the slots

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Process Equipment and Plant Design
Diameter of rivet hole (d, mm) and the plate thickness (t, mm) are related by Unwin's formula as

D = 3√t
D = 1.5 t
D = 1.1 t
D = 1.6 √t

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