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Process Equipment and Plant Design

Process Equipment and Plant Design
In case of a shell and tube heat exchanger, the minimum shell thickness for carbon steel (inclusive of corrosion allowance) depends on shell diameter and is in the range of __________ mm.

43895
44058
44183
43962

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Process Equipment and Plant Design
Baffles are provided in a shell and tube heat exchanger to increase the turbulence and velocity of the shell side fluid. Which of the following shaped baffles does not fall in the category of transverse baffle?

Helical type baffle
Disk type baffle
Segmental baffle
Flat plate extending across the wall

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Process Equipment and Plant Design
Where does the maximum tensile strength occur in a thick cylindrical vessel subjected to internal pressure?

At the inner surface
At the outer surface
At the mid thickness of the cylindrical wall
None of these

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Process Equipment and Plant Design
In a continuous distillation column, the optimum reflux ratio ranges from __________ times the minimum reflux ratio.

1.6 to 2
2.7 to 3
1.1 to 1.5
2.2 to 2.6

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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
The slope of the feed line in distillation opeartion is given by (where, q = fraction of the feed stream that is liquid.)

None of these
-q/(q-1)
-q/(1-q)
-q

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