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Process Equipment and Plant Design

Process Equipment and Plant Design
In case of a 'thin' pressure vessel, the ratio of its diameter to wall thickness is

< 10
30
> 10
> 20

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Process Equipment and Plant Design
Equivalent diameter for heat transfer calculation for a duct of square cross-section having each side as 'd' will be

√(2d)
√d
√(2πd)
D

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Process Equipment and Plant Design
In actual operation of distillation column, the vapour is not distributed uniformly among the bubble caps, primarily because of the

Liquid gradient on the tray
Lower skirt clearance
Small downcomer liquid seal
Lower static submergence

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Process Equipment and Plant Design
Hold up of material in a operating rotary drier is in the range of

0.05 to 0.15
0.8 to 0.9
0.25 to 0.50
0.5 to 0.8

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Process Equipment and Plant Design
The practical representative values of HETP for a number of commercial operations lies within a range of __________ metre.

1.2-1.5
0.2-0.5
0.4-0.9
0.1-0.2

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Process Equipment and Plant Design
For turbine agitator, the impeller diameter is about

0.1 to 0.2 d
0.95 d
0.3 to 0.5 d
0.65 to 0.85 d

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