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Process Equipment and Plant Design

Process Equipment and Plant Design
In the downcomer of a distillation column, the minimum recommended residence time is about __________ seconds.

2.5
12.5
5
17.5

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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.

3.5
1.75
2.5
1.25

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Process Equipment and Plant Design
Bubble cap plate column is

A continuous contactor
A finite stage contactor
A differential stage contactor
Used only for distillation, not for absorption

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Process Equipment and Plant Design
Shortest distance between two tubes is

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

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Process Equipment and Plant Design
A binary liquid azeotropic mixture has boiling point higher than either of the components, when it shows __________ deviation from Raoult's Law.

Negative
No
None of these
Positive

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Process Equipment and Plant Design
An underdesigned steam trap will

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

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