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Process Equipment and Plant Design

Process Equipment and Plant Design
Pressure drop per tray in the atmospheric distillation column is about __________ psi.

0.07 - 0.12
0.01 - 0.5
43833
0.5 - 1.0

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Process Equipment and Plant Design
The practical representative values of HETP for a number of commercial operations lies within a range of __________ metre.

1.2-1.5
0.4-0.9
0.1-0.2
0.2-0.5

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Process Equipment and Plant Design
If a single tube pass heat exchanger is converted to two passes; for the same flow rate, the pressure drop per unit length in tube side will __________ times.

Increase by 1.8
Decrease by 22
None of these
Increase by 21.6

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Process Equipment and Plant Design
The value of fouling factor depends upon the

Characteristic of process fluid
All of these
Suspended solids in the fluid
Velocity of process fluid containing suspended solids

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Process Equipment and Plant Design
In a distillation column, the minimum residence time for liquid in the downspout is about __________ seconds.

8
180
1
80

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Process Equipment and Plant Design
Which of the following packing materials provides for maximum mass transfer?

Cross-partition rings
Raschig rings
Lessig rings
All of these

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