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Waste Water Engineering

Waste Water Engineering
If the diameter of a sewer is 100 mm, the gradient required for generating self cleansing velocity is

1 in 100
1 in 60
1 in 120
None of these

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Waste Water Engineering
The algae dies out in the zone of

Degradation
Active decomposition
Recovery
Cleaner water

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Waste Water Engineering
For sewers, inverted siphon is provided for

One pipe
Three pipes
Four pipes
Two pipes

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Waste Water Engineering
1000 kg of sewage contains

0.112 kg in suspension
0.112 kg in solution
0.225 kg in solution
Both A and C of above

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Waste Water Engineering
depends upon The Chezy’s constant C in the formula V = C

All listed here
Shape of the sewer
Size of the sewer
Roughness of sewer surface

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Waste Water Engineering
In a fully mechanised composting plant, involves

Mechanized receipt
Mechanized pulverising of refuse
Mechanized segregation
All of these

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