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Process Equipment and Plant Design

Process Equipment and Plant Design
Maximum acceptable total liquid gradient over a tray is about __________ mm.

45.5
12.5
5.5
30.5

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Process Equipment and Plant Design
To avoid the tearing off the plate of an edge, the margin (i.e., the minimum distance from the centre of the rivet hole to the nearest edge of the plate) should be equal to

D
0.5 d
2.5 d
1.5 d

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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

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

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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

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

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Process Equipment and Plant Design
The average velocity in the tubes of a 1-4 heat exchanger is __________ times that in 1-1 heat exchanger having the same size & number of tubes and operated at same liquid flow rate.

4
43832
43834
2

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Process Equipment and Plant Design
The force due to wind load acting on a tall vessel depends upon its

All of these
Outside diameter
Shape
Height

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