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Process Equipment and Plant Design

Process Equipment and Plant Design
The slope of the feed line in distillation opeartion is given by (where, q = fraction of the feed stream that is liquid.)

-q/(1-q)
-q/(q-1)
None of these
-q

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Process Equipment and Plant Design
Commercial packed scrubbers are normally designed for a pressure drop range of __________ mm water coloumn per metre of packed height.

17-34
88-105
43929
52-68

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Process Equipment and Plant Design
Saddle supports are used for supporting __________ vessels.

Thick spherical
Tall vertical
Thick walled vertical
Horizontal cylinderical

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

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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)

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

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Process Equipment and Plant Design
Spherical shaped pressure vessel is considered to be the most ideal, because it can

Withstand higher pressure for a given metallic shell thickness
Be fabricated very easily
Be designed without wind load considerations
Be supported very easily

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