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Process Equipment and Plant Design

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

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

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Process Equipment and Plant Design
In case of a shell and tube heat exchanger, the effect of L/D on inside film heat transfer co-efficient (hi) vanishes after a Reynold number of

5000
1000
3000
10000

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Process Equipment and Plant Design
The most common standard size of bubble caps used in industrial operation is

6" dia cap with 4" dia riser
8" dia cap with 1" dia riser
1" dia cap with 0.5" dia riser
4" dia cap with 8" dia riser

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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
Flanges are connected to pipes by

Welding
Brazing
Screwing
All of these

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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
Fix the tubes in position
None of these
Hold baffle in space

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