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Process Equipment and Plant Design

Process Equipment and Plant Design
__________ liquor is best handled in a long tube vertical evaporator.

Scaling
Viscous
Foamy
Salting

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Process Equipment and Plant Design
Optimum reflux ratio in a continuous distillation column is determined by the

Maximum permissible vapour velocity
Total cost consideration (fixed cost of the column plus the cooling water & steam cost)
Flooding limit of the column
None of these

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Process Equipment and Plant Design
A pressure vessel is said to be made of 'thick' shell, if the ratio of its diameter to wall thickness is

20
10
20
10

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Process Equipment and Plant Design
In shell and tube heat exchangers, straight tie rods are used to

Account for thermal strain
None of these
Fix the tubes in position
Hold baffle in space

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Process Equipment and Plant Design
Speed of industrial paddle agitator ranges from __________ rpm.

20 to 100
500 to 750
1 to 5
1000 to 2000

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Process Equipment and Plant Design
The average velocity in the tubes of a 1-4 heat exchanger is __________ times that in 1-1 heat exchanger having the same size & number of tubes and operated at same liquid flow rate.

43834
43832
4
2

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