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Process Equipment and Plant Design

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

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Process Equipment and Plant Design
Skirt support is the most suitable for supporting __________ vessels.

Thick walled
Tall vertical
Large horizontal
Small horizontal

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Process Equipment and Plant Design
Which of the following is the best tube material from thermal conductivity point of view alone?

Carbon steel
Stainless steel
Aluminium
Copper

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Process Equipment and Plant Design
In most of the shell and tube heat exchangers, the tube pitch is generally __________ the tube diameter.

One-fourth of
2.5 times
Less than
1.25-1.50 times

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Process Equipment and Plant Design
The average velocity in the tubes of a 1-4 heat exchanger is __________ times that in 1-1 heat exchanger having the same size & number of tubes and operated at same liquid flow rate.

43832
2
4
43834

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Process Equipment and Plant Design
The longitudinal stress induced in a thin walled cylinderical vessel under internal pressure is

pd/4t
pd/t
pd/8t
pd/2t

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