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Waste Water Engineering

Waste Water Engineering
The sewage is pumped up

From flat areas
From low lying areas
From basements
All listed here

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

Recovery
Active decomposition
Degradation
Cleaner water

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Waste Water Engineering
Water content of sewage is about

0.9
0.95
0.99
0.999

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Waste Water Engineering
The bottom of the sewage inlet chamber of septic tanks, is provided an outward slope

1 in 10
1 in 5
1 in 15
1 in 20

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Waste Water Engineering
The rate of accumulation of sludge in septic tanks is recommended as

25 litres/person/year
30 litres/person/year
25 litres/person/month
30 litres/person/month

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Waste Water Engineering
The temperature affects the

Biological activity of bacteria in sewage
Solubility of gases in sewage
All of these
Viscosity of sewage

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MORE MCQ ON Waste Water Engineering

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