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Process Equipment and Plant Design

Process Equipment and Plant Design
Bracket supports are the most suitable for supporting __________ vessels.

Thick walled vertical
None of these
Thin shperical (e.g. Horton sphere)
Horizontal

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Process Equipment and Plant Design
A perforated plate has holes of diameter dh arranged in a pitch ph. Each hole has a tube of I.D. dt passing through it. The ligament efficiency is given by

(ph - dh)/ph
(ph - dt)/ph
(ph - dh)/dh
(ph - dh . dt/2)/ph

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Process Equipment and Plant Design
for couplings and unions would be

60
Negligible
200
350

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Process Equipment and Plant Design
Shortest distance between two tubes is

More in case of triangular pitch as compared to square pitch of tube layout
Called tube clearance
Called tube pitch
None of these

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Process Equipment and Plant Design
In common bubble cap distillation column design practice, riser area is approximately equal to (where, Aa = Annular passage area, and Sa = Slot area)

Sa = 1.5 Aa
Aa = Sa
Aa = 1.5 Sa
1.2 Aa = 1.2 Sa

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Process Equipment and Plant Design
__________ liquor is best handled in a long tube vertical evaporator.

Scaling
Foamy
Viscous
Salting

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