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Process Equipment and Plant Design

Process Equipment and Plant Design
For turbine agitator, the impeller diameter is about

0.3 to 0.5 d
0.65 to 0.85 d
0.95 d
0.1 to 0.2 d

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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.

Less than
2.5 times
1.25-1.50 times
One-fourth of

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

2.5
17.5
5
12.5

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Process Equipment and Plant Design
Which of the following is used to set the diameter of the distillation column?

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

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Process Equipment and Plant Design
The LMTD correction factor (FT) is applied in __________ heat exchangers.

1-1 cocurrent
All of these
Double pipe
All multipass

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