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Process Equipment and Plant Design

Process Equipment and Plant Design
In a heat exchanger, shell side fluid velocity can be changed by changing the tube

Pitch
Neither A nor B
Layout
Both A & B

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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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Process Equipment and Plant Design
In packed absorption tower, onset of flooding usually occurs at a pressure drop of about __________ mm of water column per metre height of packing.

750-1000
200-250
50-75
25-50

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Process Equipment and Plant Design
Which of the following material is seldom used for pressure vessel construction?

Mild steel
Rimmed still
Killed steel
Semi-killed steel

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Process Equipment and Plant Design
A minimum clearance of about __________ mm is maintained between the distillation column wall and the bubble cap.

19
38
95
76

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Process Equipment and Plant Design
In case of a 'thin' pressure vessel, the ratio of its diameter to wall thickness is

< 10
> 10
30
> 20

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