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Process Equipment and Plant Design

Process Equipment and Plant Design
The practical representative values of HETP for a number of commercial operations lies within a range of __________ metre.

0.2-0.5
0.1-0.2
1.2-1.5
0.4-0.9

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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

Fixing the tubes
Increasing pressure drop
Creating turbulence
Reducing scale deposition

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Process Equipment and Plant Design
Maximum size of the raschig rings used in a packed tower is about __________ of the coloumn diameter.

1/50th
1/10th
1/20th
1/30th

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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
Twice
Half

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Process Equipment and Plant Design
Which of the following is the most common type of baffle used in industrial shell and tube heat exchanger?

75% cut segmental baffle
Disk and doughnut baffle
25% cut segmental baffle
Orifice baffle

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Process Equipment and Plant Design
Column support for the roof of cylindrical storage tank must be provided for

Small diameter tall tanks
Small diameter tanks
All of these
Large diameter tanks

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