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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.

5
10
30
20

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Process Equipment and Plant Design
With increase in the number of shell passes, the value of FT

Increases
Remains same
Remains same, only if the number of tube passes does not change
Decreases

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Process Equipment and Plant Design
A single pass air heater is connected to a two pass unit. For the air flow rate and other conditions remaining the same, the film heat transfer co-efficient for air will vary in the ratio of

2
20.8
None of these
20.2

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Process Equipment and Plant Design
The safe height (h) to diameter (d) ratio (i.e., h/d) for liquid/petro fuel storage tank of capacity more than 45 kilolitres is less than

3
1
2
3.5

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Process Equipment and Plant Design
Floating head heat exchangers are used for the

Heat transfer between corrosive fluids
Co-current heat transfer systems
Cases where temperature difference between the shell and the tubes is more (>50°C)
Counter-current heat transfer systems

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Process Equipment and Plant Design
Most of the storage vessels/tanks are made cylindrical, because of the fact that a cylinder

Has greater structural strength
Both A & B
Neither A nor B
Is easy to fabricate

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