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Process Equipment and Plant Design

Process Equipment and Plant Design
What is the slope of the operating line in the stripping section of a distillation column?

?
< 1
> 1

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Process Equipment and Plant Design
Circumferential (hoop) stress in a thin cylindrical vessel under internal pressure is __________ the longitudinal stress.

Eight times
Equal to
Half
Twice

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Process Equipment and Plant Design
A high vapour velocity is required for high plate efficiency in a seive plate coloumn. The satisfactory value of operating vapor velocity for design purpose in seive plate column is about __________ percent of the flooding velocity.

60
80
95
45

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Process Equipment and Plant Design
__________ head is the most economical for cylindrical vessels designed for operating at high pressure (> 15 atm.).

Hemispherical
Conical
Ellipsoidal
Dished

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Process Equipment and Plant Design
In a multipass shell and tube heat exchanger, the baffles on shell side is primarily provided for

Reducing scale deposition
Creating turbulence
Increasing pressure drop
Fixing the tubes

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Process Equipment and Plant Design
In a shell and tube heat exchanger having square pitch, the shell side equivalent diameter is given by (where, P = pitch, d = outside diameter of the tube)

Πd/4P²
4P²/πd
(P² - πd²/4)/πd
4(P² - πd²/4)/πd

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