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Waste Water Engineering

Waste Water Engineering
Setting out the alignments of sewers may start from

City
Out-fall
Tail end
Any point

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Waste Water Engineering
Aerobic activity is maximum

In freshly produced sewage
None of these
In sewer treatment plants
At sewer pipes

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Waste Water Engineering
Which one of the following gases is most significant as air pollutant?

Sulphur-dioxide
Carbondioxide
Oxygen
Nitrogen

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Waste Water Engineering
For drainage pipes in buildings the test applied before putting them to use, is

Straightness test
All listed here
Water test
Smoke test

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Waste Water Engineering
If D.O. concentration falls down to zero in any natural drainage, it indicates the zone of

Active decomposition
Recovery
Cleaner water
Degradation

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Waste Water Engineering
The following is the physical characteristic of sewage

Colour
Odour
Turbidity
All listed here

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