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Process Equipment and Plant Design

Process Equipment and Plant Design
Maximum acceptable total liquid gradient over a tray is about __________ mm.

5.5
12.5
30.5
45.5

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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.

1.5 to 3
2.5
1.3 to 2
1.6 to 2

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Process Equipment and Plant Design
An underdesigned steam trap will

None of these
Back up condensate and cause water hammer in steam line
Destroy itself of acceleration wear due to rapid recycling
Waste steam

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Process Equipment and Plant Design
Shortest distance between two tubes is

Called tube clearance
None of these
Called tube pitch
More in case of triangular pitch as compared to square pitch of tube layout

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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
1 to 2
20 to 30
10 to 20

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

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

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