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Process Equipment and Plant Design

Process Equipment and Plant Design
Diameter of bubble caps used in high pressure columns is __________ as compared to that used in identical vacuum columns.

Same
More
Less
Either A or B; no generalisation can be made

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Process Equipment and Plant Design
In a double pipe concentric heat exchanger, the equivalent diameter of annulus for heat transfer would be (where, D₁ and D₂ are I.D. of inner and outer pipes)

(D₂² - D₁²)/D₂²
(D₂² - D₁²)/D₁²
D₂ - D₁
None of these

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Process Equipment and Plant Design
In the design of a paddle agitator, the ratio (paddle dia/tank dia) is normally taken as

0.8
0.1
0.25
0.5

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

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Process Equipment and Plant Design
Lap joints are preferred for plates having thickness __________ mm.

> 3
< 12.5
43961
> 5

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Process Equipment and Plant Design
For pipe flows, head is proportional to __________ at constant capacity (where D = pipe diameter ).

D²
1/D⁵
1/D²
1/D

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