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Process Equipment and Plant Design

Process Equipment and Plant Design
For identical operating conditions, the pressure drop over __________ tray is the highest out of the following.

Bubble cap
Sieve
Counterflow
Valve

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Process Equipment and Plant Design
The most common standard size of bubble caps used in industrial operation is

1" dia cap with 0.5" dia riser
4" dia cap with 8" dia riser
6" dia cap with 4" dia riser
8" dia cap with 1" dia riser

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Process Equipment and Plant Design
In a distillation column, the minimum residence time for liquid in the downspout is about __________ seconds.

8
1
80
180

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Process Equipment and Plant Design
What is the minimum recommended ligament for square pitch arrangement in case of heat exchangers?

6.5 cms
Equal to tube I.D
6.5 mm
Equal to tube O.D

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Process Equipment and Plant Design
If 'D' is the inside diameter of the shell of a shell and tube heat exchanger, then the baffle spacing is usually in the range of

D/2 or minimum 2" to 5D
None of these
D/5 or minimum 2" to D
D/5 or minimum 2" to 5D

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Process Equipment and Plant Design
In distillation columns, bubble caps are held in place over trays by

A hold down bar
Bolts
Both B and C
Rivets

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