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Process Equipment and Plant Design

Process Equipment and Plant Design
Typical static submergence for bubble cap plate column operating at atmospheric pressure may be around

2.5"
5"
0.5"
50% of the plate spacing

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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
Less than
2.5 times
1.25-1.50 times

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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
Which of the following is used to set the diameter of the distillation column?

Length of straight rectangular weir on cross-flow tray
Number of theorectical plates
Allowable vapour velocity
Static submergence

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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.

2.5
1.3 to 2
1.5 to 3
1.6 to 2

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Process Equipment and Plant Design
Length to diameter ratio of most rotary driers is in the range of

4 to 10
20 to 30
10 to 20
1 to 2

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