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Process Equipment and Plant Design

Process Equipment and Plant Design
Generally, no corrosion allowance in wall thickness of a part is required, if the thickness is more than __________ mm.

30
5
10
20

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Process Equipment and Plant Design
If 'D' is the inside diameter of the shell of a shell and tube heat exchanger, then the baffle spacing is usually in the range of

None of these
D/5 or minimum 2" to D
D/2 or minimum 2" to 5D
D/5 or minimum 2" to 5D

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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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Process Equipment and Plant Design
In perforated plate towers, the

All of these
Hole sizes may be around 1/8" or 3/16"
Total hole area may be around 6 to 15% of tower cross-sectional area
Pressure drop is less compared is similar bubble cap towers

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Process Equipment and Plant Design
Cylindrical pressure vessels in horizontal condition is generally supported on a __________ support.

Guy wire
Saddle
Skirt
Lug

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Process Equipment and Plant Design
Back-trapping in a distillation column results due to

Excessive liquid gradient over the tray
Low gas velocity
High gas velocity
Low reflux ratio

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