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Process Equipment and Plant Design

Process Equipment and Plant Design
Height of the flights in the rotary drier is in the range of

0.2 to 0.5 d
0.08 to 0.12 d
0.5 to 0.6 d
0.02 to 0.05 d

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Process Equipment and Plant Design
Corrosion allowance in the design of pressure vessel/chemical equipment is not necessary, if

Material of construction is high alloy steel
Plain carbon steel and cast iron parts are used
Wall thickness is > 30 mm
Both B & C

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Process Equipment and Plant Design
In most of the shell and tube heat exchangers, the tube pitch is generally __________ the tube diameter.

Less than
1.25-1.50 times
One-fourth of
2.5 times

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Process Equipment and Plant Design
Generally, as the length of the liquid path on a tray is increased beyond 5 ft, the overall column efficiency

Increases
May increase or decrease depending upon the plate spacing
Remains same
Decreases

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

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Process Equipment and Plant Design
Lug support is

Same as bracket support
All of these
The most suitable for thick vertical vessel
Provided usually for vessels of much smaller height than skirt supported vessels

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