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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.

10
5
30
20

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Process Equipment and Plant Design
Reflux ratio variation in a distillation column is between

None of these
Minimum and infinity
Zero and one
Zero and infinity

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Process Equipment and Plant Design
Value of Peclet number = 0, is the representative of

Complete back mixing
Laminar flow
Plug flow
Eddy diffusivity = 0

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Process Equipment and Plant Design
The minimum tray spacing in distillation column of diameter less than 3 ft is normally __________ inches.

6
18
24
34

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Process Equipment and Plant Design
Which tube arrangement in a heat exchanger would facilitate highest heat transfer rate?

Triangular pitch
Square pitch
Diagonal square pitch
Heat transfer rate is independent of tube arrangement

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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.

44183
43895
44058
43962

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