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Process Equipment and Plant Design

Process Equipment and Plant Design
Maximum acceptable total liquid gradient over a tray is about __________ mm.

30.5
45.5
12.5
5.5

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Process Equipment and Plant Design
Corrosion allowance in the design of pressure vessel/chemical equipment is not necessary, if

Both B & C
Plain carbon steel and cast iron parts are used
Material of construction is high alloy steel
Wall thickness is > 30 mm

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Process Equipment and Plant Design
Typical static submergence for bubble cap plate column operating at atmospheric pressure may be around

50% of the plate spacing
2.5"
0.5"
5"

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

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

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Process Equipment and Plant Design
Le/D for a Tee (used as elbow, entering run) would be around

200
350
60
5

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Process Equipment and Plant Design
Which of the following efficiencies can be greater than 100%?

Murphree plate efficiency
None of these
Overall plate efficiency
Point efficiency

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