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Process Equipment and Plant Design

Process Equipment and Plant Design
Le/D for fully open globe value may be around

10
75
300
25

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Process Equipment and Plant Design
Minimum tube pitch recommended for shell and tube heat exchangers is about __________ times the outside diameter of the tube.

1.75
1.25
3.5
2.5

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Process Equipment and Plant Design
For a given design of bubble cap, the number of bubble caps to be used per tray is set by the

Diameter of the column
Plate spacing
All of these
Allowable gas velocity through the slots

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Process Equipment and Plant Design
Speed of industrial paddle agitator ranges from __________ rpm.

20 to 100
1000 to 2000
500 to 750
1 to 5

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Process Equipment and Plant Design
Diameter of bubble caps used in high pressure columns is __________ as compared to that used in identical vacuum columns.

Same
Less
Either A or B; no generalisation can be made
More

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Process Equipment and Plant Design
In condenser, the cooling water is passed in the tube side in a pass arrangement, because

It makes condenser compact
It reduces heat transfer area
Pressure drop is reduced
More thinner tubes can be used

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