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Process Equipment and Plant Design

Process Equipment and Plant Design
Shell side heat transfer co-efficient in case of square pitch as compared to the triangular pitch under similar condition of fluid flow and tube size is

Less
More
Twice
Same

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Process Equipment and Plant Design
A claming section before the liquid flows into the downcomer is privided to

Cool the liquid before it flows down
Permit release of entrained vapour in the liquid
Reduce the discharge fluctuation
Ensure better vapour-liquid contact

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Process Equipment and Plant Design
Oxygen carrying pipelines in chemical industries are coloured with __________ colour.

Blue
Black
Red
Yellow

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Process Equipment and Plant Design
Normally, the ratio of the total riser area to the tower cross sectional area (for bubble cap towers of diameter more than 3 ft) is around

0.55-0.85
0.1-0.2
0.4-0.6
0.35-0.75

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Process Equipment and Plant Design
In case of saddle packing (e.g., berl and intralox saddles), the maximum size of the packing should not exceed __________ of the column diameter.

l/5th
l/15th
l/30th
l/50th

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Process Equipment and Plant Design
The clearance between two tubes in a shell and tube heat exchanger is known as 'ligament', whose minimum value is __________ the outside diameter of the tube, but in no case it should be less than 4.5 mm.

Three fourth
Half
One fourth
Equal to

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