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Process Equipment and Plant Design

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
Less than
1.25-1.50 times
2.5 times

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Process Equipment and Plant Design
Vertical storage vessels are never supported by __________ support.

Lug
Skirt
Saddle
Bracket

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Process Equipment and Plant Design
In shell and tube heat exchangers, straight tie rods are used to

None of these
Fix the tubes in position
Account for thermal strain
Hold baffle in space

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Process Equipment and Plant Design
In packed towers provided with saddle packing, liquid redistributors are positioned at every __________ times column diameter or 6 metres whichever is less.

20-25
44119
43959
43864

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Process Equipment and Plant Design
In a distillation column, bubble caps are located on trays with a pitch of __________ times the outside diameter of the caps.

1.6 to 2
1.5 to 3
2.5
1.3 to 2

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Process Equipment and Plant Design
A perforated plate has holes of diameter dh arranged in a pitch ph. Each hole has a tube of I.D. dt passing through it. The ligament efficiency is given by

(ph - dh)/dh
(ph - dt)/ph
(ph - dh . dt/2)/ph
(ph - dh)/ph

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