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Process Equipment and Plant Design

Process Equipment and Plant Design
Baffles may be eliminated for

High viscosity liquids (> 600 poise)
Low viscosity liquids (< 200 poise)
None of these
Large diameter tanks

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Process Equipment and Plant Design
The normal range of velocity of steam in pipes is __________ m/sec.

80-100
0.1-0.5
10-20
1-5

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Process Equipment and Plant Design
Diameter of rivet hole (d, mm) and the plate thickness (t, mm) are related by Unwin's formula as

D = 3√t
D = 1.6 √t
D = 1.5 t
D = 1.1 t

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Process Equipment and Plant Design
A claming section before the liquid flows into the downcomer is privided to

Permit release of entrained vapour in the liquid
Ensure better vapour-liquid contact
Cool the liquid before it flows down
Reduce the discharge fluctuation

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Process Equipment and Plant Design
Which of the following factors affect the pressure drop in a co-current gas-liquid absorption packed tower?

Density and viscosity of fluids
All of these
Size, shape, orientation and surface of the packing particles
Fluid flow rates

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

Viscous
Scaling
Salting
Foamy

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