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Process Equipment and Plant Design

Process Equipment and Plant Design
In inclined long tube vertical evaporators, the tubes are inclined at an angle of

15°
45°
90°
60°

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Process Equipment and Plant Design
The operating velocity in the absorption tower is usually 40-50% of the flooding velocity. Packed absorption towers are normally designed for a pressure drop of about __________ mm of water column per metre height of packing.

43835
1000-1500
20-40
100-150

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Process Equipment and Plant Design
Generally, no corrosion allowance in wall thickness of a part is required, if the thickness is more than __________ mm.

10
20
30
5

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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.

6
12
34
18

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Process Equipment and Plant Design
In packed absorption tower, onset of flooding usually occurs at a pressure drop of about __________ mm of water column per metre height of packing.

200-250
25-50
50-75
750-1000

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Process Equipment and Plant Design
Two iron pipes of the same nominal diameter but different schedule numbers will have the same

Wall thickness
Outside diameter
None of these
Inside diameter

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