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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

Brazed
Screwed
Welded
Flanged

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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
100-150
20-40
1000-1500

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Process Equipment and Plant Design
The ratio of down take area to cross-sectional area of the tube, for calendria type evaporator ranges from

1 to 1.5
0.5 to 1
2 to 2.5
1.5 to 2

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Process Equipment and Plant Design
Le/D for 90° elbow (medium radius) and 90°square elbow would be respectively around

25 and 60
250 and 600
100 and 250
3 and 5

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Process Equipment and Plant Design
Which of the following is used to set the diameter of the distillation column?

Static submergence
Allowable vapour velocity
Length of straight rectangular weir on cross-flow tray
Number of theorectical plates

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Process Equipment and Plant Design
Overall mass transfer co-efficient in case of absorption of __________ in water is based on the gas film co-efficient only, as the mass transfer process is gas film (phase) controlling.

NH₃
None of these
CO₂
SO₂

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