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Process Equipment and Plant Design

Process Equipment and Plant Design
What is the value of 'q' for saturated vapor feed to a distillation column ?(where q = fraction of the feed stream that is liquid.)

1
> 1

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Process Equipment and Plant Design
Tube wall thickness depends on the cor-rosiveness of the fluids and their operating pressure & temperature and is specified by Birmingham wire gauge (B.W.G)-a number which varies from 8 to 18 with the numbers 14 and 16 being more commonly used. Outside diameter of tubes varies from about 15 to 50 mm; however a tube of less than __________ mm outside diameter is generally not recommended for fouling fluids.

19
28
38
16

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Process Equipment and Plant Design
Overall mass transfer co-efficient in case of absorption of __________ in water is based on the gas film co-efficient only, as the mass transfer process is gas film (phase) controlling.

SO₂
NH₃
CO₂
None of these

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Process Equipment and Plant Design
The circumferential (hoop) stress in a thin walled cylinderical vessel under internal pressure is

pd/4t
pd/t
pd/2t
pd/3t

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Process Equipment and Plant Design
Lug support is meant for supporting __________ vessels.

Thick walled tall
Small
Tall but empty
Large horizontal cylindrical

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Process Equipment and Plant Design
In a __________ rivetted joint, the rivets in the various rows are opposite to each other.

Zig-zag
Chain
Diamond
None of these

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