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Waste Water Engineering

Waste Water Engineering
Water content of sewage is about

0.999
0.9
0.95
0.99

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Waste Water Engineering
The sewer that unloads the sewage at the point of treatment is called

House sewer
Main sewer
Outfall sewer
Branch sewer

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Waste Water Engineering
A well oxidized sewage contains nitrogen mainly as

Nitrites
None of these
Free ammonia
Nitrates

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Waste Water Engineering
The algae dies out in the zone of

Cleaner water
Active decomposition
Degradation
Recovery

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Waste Water Engineering
In a residential colony, sewers of diameters 100 mm, 150 mm and 225 mm were laid with a gradient 1 in 120. Which portion of the sewage system does not choke in due course of time?

225 mm dia
150 mm dia
100 mm dia
All of these

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Waste Water Engineering
In a city the ratio of the drainage to sewage is 20, the percentage discharge passing through non-monsoon periods, is

15
20
10
5

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