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Process Equipment and Plant Design

Process Equipment and Plant Design
Bubble cap diameter used for the distillation column having diameter ranging from 1.5 to 4.5 metres is about __________ mm.

150
50
10
100

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Process Equipment and Plant Design
Back-trapping in a distillation column results due to

Low reflux ratio
High gas velocity
Excessive liquid gradient over the tray
Low gas velocity

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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
Remain unaffected
Decreases
None of these

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Process Equipment and Plant Design
The force due to wind load acting on a tall vessel depends upon its

All of these
Outside diameter
Shape
Height

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Process Equipment and Plant Design
The minimum plate spacing in most of the pertroleum refinery distillation columns (of dia > 3 ft) is normally __________ inches.

34
18
6
12

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Process Equipment and Plant Design
Vertical storage vessels are never supported by __________ support.

Saddle
Lug
Bracket
Skirt

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