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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
30
20
10

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Process Equipment and Plant Design
Filtration rate is affected by the

Area of filtering surface & the viscosity of filtrate
Cake & filter medium resistance
Pressure drop across the cake & filter medium
All of these

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Process Equipment and Plant Design
Saddle supports are used for supporting __________ vessels.

Thick walled vertical
Thick spherical
Tall vertical
Horizontal cylinderical

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Process Equipment and Plant Design
25 per cent cut segmental baffle means that the baffle

Width is 25% of its height
Spacing is 75% of its height
Height is 75% of the I.D. of the shell
Height is 25% of the I.D. of the shell

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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"
5"
0.5"

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Process Equipment and Plant Design
Pressure drop due to pipe fittings can be estimated by the equation, ΔP/p = 4f.Le/D.V2/2gc, where, Le = equivalent length of straight pipeline which will incur the same frictional loss as the fitting and D = diameter of the fitting. The value of Le/D (dimensionless) for 45° elbow and 180° close return bends would be respectively around

5 and 10
300 and 500
180 and 300
45 and 75

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