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Waste Water Engineering

Waste Water Engineering
Disposal to sewage in large cities, is done in

Purification
Oxidation
Irrigation
Dilution

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Waste Water Engineering
15 cumecs, the depth d and width are related by For drains up to

B = 0.2 d
B = 0.5 d
d = 0.5 B
d = 0.2 B

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Waste Water Engineering
If the length of overland flow from the critical point to the mouth of drain is 13.58 km and difference in level between the critical point and drain mouth is 10 m, the inlet time is

6 hours
8 hours
2 hours
4 hours

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

City
Out-fall
Any point
Tail end

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Waste Water Engineering
Drop manholes are the manholes

With depths more than 3.5 m
Having drains at different levels
Without entry ladders
Without manhole covers

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Waste Water Engineering
Water content of sewage is about

0.999
0.99
0.9
0.95

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