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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Process Equipment and Plant Design
Pick out the wrong statement pertaining to the comparative evaluation of performance of the packed tower and the plate tower.

Plate tower is perferred, if interstage cooling is required to remove heats of reaction or solution
Plate tower is preferred over packed tower, if the operation involves liquids containing dispersed solids
In operations involving large temperature changes. (e.g. distillation), plate towers are preferred over packed towers as the packing may be crushed due to large temperature changes
The total weight of a dry plate tower is usually much more than that of a dry packed tower designed for the same duty

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Process Equipment and Plant Design
Seamless pipe is made

Both B and C
By forging a solid round, piercing it by simultaneously rotating & forcing it over a piercer point and further reducing it by rolling gas drawing
From rolled strips formed into cylinders and seam-welded
By extrusion & casting into static and centrifugal molds

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