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Process Equipment and Plant Design

Process Equipment and Plant Design
The thickness of heat transfer plates used in the plate type heat exchanger ranges from __________ mm, pressed in a single piece provided with grooves & corrugations.

1.25 to 3.125
3.5 to 7.0
0.3 to 0.8
44055

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Process Equipment and Plant Design
Liquid redistribution should be done in a packed tower packed with raschig rings every 6 metres or __________ times the column diameter, whichever is lower.

15-20
10-12.5
2.5-3.0
5-7.5

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Process Equipment and Plant Design
The maximum liquid gradient over a tray must not exceed

0.5" -1.25"
Half the tray spacing
2"-3.5"
5"

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Process Equipment and Plant Design
The main purpose of providing stepping on the trays is to

Increase the residence time
Facilitate handling of large flow rate of liquid
Improve the flow condition
Decrease the pressure drop

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

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

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Process Equipment and Plant Design
In case of saddle packing (e.g., berl and intralox saddles), the maximum size of the packing should not exceed __________ of the column diameter.

l/5th
l/15th
l/50th
l/30th

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