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Process Equipment and Plant Design

Process Equipment and Plant Design
What is the slope of the operating line in the rectifying section of a distillation coloumn?

> 1
∞

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Process Equipment and Plant Design
A/an __________ is used for changing the direction of a pipeline.

Elbow
Union
Flange
Disc compensator

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Process Equipment and Plant Design
In most of the shell and tube heat exchangers, the tube pitch is generally __________ the tube diameter.

1.25-1.50 times
One-fourth of
Less than
2.5 times

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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)

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

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Process Equipment and Plant Design
In perforated plate towers, the

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

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

20
30
10
5

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