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Process Equipment and Plant Design

Process Equipment and Plant Design
In the design of a bag filter, the gas temperature is an important consideration, as it affects the

Gas density
Gas viscosity
All of these
Fibre selection

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Process Equipment and Plant Design
A minimum clearance of about __________ mm is maintained between the distillation column wall and the bubble cap.

38
19
76
95

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Process Equipment and Plant Design
With increase in gas flow rate to fabric surface area ratio (Nm³/hr/m² fabric surface area), the size & the cost of a bag filter

Increases
None of these
Remain unaffected
Decreases

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Process Equipment and Plant Design
The minimum baffle height should be

Twice the impeller diameter
Twice the tank diameter
3/4 of the tank height
Equal to the impeller diameter

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Process Equipment and Plant Design
Tube wall thickness depends on the cor-rosiveness of the fluids and their operating pressure & temperature and is specified by Birmingham wire gauge (B.W.G)-a number which varies from 8 to 18 with the numbers 14 and 16 being more commonly used. Outside diameter of tubes varies from about 15 to 50 mm; however a tube of less than __________ mm outside diameter is generally not recommended for fouling fluids.

28
16
38
19

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Process Equipment and Plant Design
Normally, the ratio of the total riser area to the tower cross sectional area (for bubble cap towers of diameter more than 3 ft) is around

0.35-0.75
0.4-0.6
0.55-0.85
0.1-0.2

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