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Process Equipment and Plant Design

Process Equipment and Plant Design
The diameter of a propeller agitator used in agitation tank ranges from __________ percent of the tank diameter and its peripherial speed is normally 300 to 500 metres/minute.

40 to 50
55 to 75
5 to 10
15 to 30

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Process Equipment and Plant Design
In a multipass shell and tube heat exchanger, the shell side cross flow area does not depend upon

Clearance
Baffle spacing
Pitch
None of these

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Process Equipment and Plant Design
Larger depth of liquid on the trays of a distillation column

Both A & B
Leads to high tray efficiency
Results in higher pressure drop per tray
Neither A nor B

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

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

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Process Equipment and Plant Design
A shell may by termed as thin if its thickness to diameter ratio is less than 0.1. The factor which can be neglected in the calculation of membrane stresses is

Bending
Elongation
Deformation
Shear

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

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