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Process Equipment and Plant Design

Process Equipment and Plant Design
The minimum baffle height should be

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

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Process Equipment and Plant Design
A pipe is generally made of circular cross-section, because a circular cross-section has the

Lowest surface area requirement for a given volume
Both A & B
Higher structural strength
None of these

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Process Equipment and Plant Design
Of the pressure vessels, with same thickness but different diameters, which one withstands higher pressure?

Smaller dia vessel
Larger dia vessel
Larger dia long vessel
Strength of the vessel is same irrespective of the diameter

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Process Equipment and Plant Design
In distillation columns, bubble caps are held in place over trays by

Both B and C
A hold down bar
Bolts
Rivets

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Process Equipment and Plant Design
The dust collection efficiency of a cyclone separator

None of these
Decreases with increase in gas flow rate
Is directly proportional to the radius of the dust particle path
Is inversely proportional to the mass of the dust particle

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Process Equipment and Plant Design
In perforated plate towers, the

Total hole area may be around 6 to 15% of tower cross-sectional area
Pressure drop is less compared is similar bubble cap towers
All of these
Hole sizes may be around 1/8" or 3/16"

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