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Process Equipment and Plant Design

Process Equipment and Plant Design
The thickness of segmental baffles (25 -35% cut truncated plates usually) is generally __________ the tube wall thickness.

Half
Equal to
Four times
Twice

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Process Equipment and Plant Design
Stage efficiency for packed tower varies with the

Operating pressure and column diameter
Type & size of packing
All of these
Fluid rates and fluid properties

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Process Equipment and Plant Design
Bubble cap plate column is

Used only for distillation, not for absorption
A finite stage contactor
A differential stage contactor
A continuous contactor

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Process Equipment and Plant Design
Theoretically calculated diameter of the stripping section of the continuous rectification column is __________ that of the enriching section.

Either more or less (depending upon relative volatility)
Same as
Less than
More than

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Process Equipment and Plant Design
At the following point for a given packing and set of fluids, the pressure drop per metre of packed height, with variation in fluid rates and operating pressure

May increase or decrease depending upon the solubility of the gas in the liquid
Decreases
Remains same
Increases

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Process Equipment and Plant Design
Baffles may be eliminated for

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

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