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Process Equipment and Plant Design

Process Equipment and Plant Design
The practical representative values of HETP for a number of commercial operations lies within a range of __________ metre.

1.2-1.5
0.1-0.2
0.2-0.5
0.4-0.9

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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.

30
10
5
20

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Process Equipment and Plant Design
In case of a shell and tube heat exchanger, the effect of L/D on inside film heat transfer co-efficient (hi) vanishes after a Reynold number of

10000
5000
1000
3000

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Process Equipment and Plant Design
Movement of pipeline caused by thermal expansion is taken care by providing

Change in the shape of pipeline
All of these
Expansion joint
Changes in its direction

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Process Equipment and Plant Design
In a distillation column, the minimum residence time for liquid in the downspout is about __________ seconds.

1
8
80
180

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Process Equipment and Plant Design
Optimum economic pipe diameter for fluid flow is determined by the

Total cost considerations (pumping cost plus fixed cost of the pipe)
Viscosity of the fluid
None of these
Density of the fluid

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