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Chemical Engineering - Process Equipment and Plant Design

Exercise : Process Equipment and Plant Design - Section 5
26.
Pick out the wrong statement pertaining to the design of the distillation column.
Generally, a skirt clerance of 0.5" to 1.5' is recommended to prevent plugging of the slots by residue build up.
The purpose of the slot is to disperse the gas into the liquid in the form of small bubbles.
If sufficient slot area is not provided, the gas may pass through the skirt clearance.
none of these.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
27.
The longitudinal stress induced in a thin walled cylinderical vessel under internal pressure is
pd/2t
pd/4t
pd/t
pd/8t
Answer: Option
Explanation:
No answer description is available. Let's discuss.
28.
In distillation columns, bubble caps are held in place over trays by
rivets
a hold down bar
bolts
both (b) and (c)
Answer: Option
Explanation:
No answer description is available. Let's discuss.
29.
The buckling tendency of compression members is always in the direction of the
least radius of gyration.
axis of the load.
perpendicular to the axis of the load.
none of these.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
30.
In case of plain carbon steel, butt welded joints are used for shell plate thickness ≤ __________ cms.
1.2
0.5
3.8
6.8
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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