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Process Equipment and Plant Design

Process Equipment and Plant Design
For high pressure process equipments/vessels, the connected nozzle should be

Flanged
Brazed
Screwed
Welded

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Process Equipment and Plant Design
Smaller sized packings are generally dumped to the packed columns, and the large ones of size greater than __________ mm are stacked individually, which provides better control over bed porosity and offers lower gas pressure drop.

50
150
25
75

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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.

100-150
43835
20-40
1000-1500

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Process Equipment and Plant Design
At equal mass velocities, the values of film co-efficients for gases as compared to that for liquids are generally.

Unpredictable
Higher
Lower
Same

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Process Equipment and Plant Design
Reflux ratio variation in a distillation column is between

None of these
Zero and infinity
Zero and one
Minimum and infinity

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Process Equipment and Plant Design
Slope of countercurrent flow rotary drier is in the range of __________ meter/metre.

0 to 2.2
0 to 0.8
0 to 0.08
0 to 1.5

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