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Process Equipment and Plant Design

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

8
1
80
180

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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.

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

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Process Equipment and Plant Design
Lap joints are preferred for plates having thickness __________ mm.

< 12.5
> 5
43961
> 3

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Process Equipment and Plant Design
The ratio of linear stress to linear strain is termed as the

Modulus of elasticity
Bulk modulus
None of these
Modulus of rigidity

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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/5th
l/50th
l/15th

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Process Equipment and Plant Design
Movement of pipeline caused by thermal expansion is taken care by providing

Changes in its direction
All of these
Change in the shape of pipeline
Expansion joint

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