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Process Equipment and Plant Design

Process Equipment and Plant Design
Le/D for 90° elbow (medium radius) and 90°square elbow would be respectively around

250 and 600
3 and 5
25 and 60
100 and 250

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Process Equipment and Plant Design
With increase in pressure drop (for a given particle size), the dust collection efficiency of a cyclone separator will

Increase or decrease depending on the nature of the dust
Increase
Remain unaffected
Decrease

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Process Equipment and Plant Design
Spherical shaped pressure vessel is considered to be the most ideal, because it can

Be supported very easily
Be fabricated very easily
Be designed without wind load considerations
Withstand higher pressure for a given metallic shell thickness

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Process Equipment and Plant Design
Lug support is meant for supporting __________ vessels.

Thick walled tall
Tall but empty
Small
Large horizontal cylindrical

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Process Equipment and Plant Design
Bubble cap plate column is

A finite stage contactor
Used only for distillation, not for absorption
A continuous contactor
A differential stage contactor

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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.

38
28
16
19

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