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Waste Water Engineering

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

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

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Waste Water Engineering
For a peak discharge of 0.0157 cumec, with a velocity of 0.9 m/sec, the diameter of the sewer main, is

18 cm
12 cm
15 cm
10 cm

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Waste Water Engineering
As compared to fresh river water, sea water contains oxygen

10% more
20% less
20% more
10% less

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Waste Water Engineering
The gradient of sewers depends upon

Diameter of the sewer
Discharge
Velocity of flow
All listed here

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Waste Water Engineering
The most effective arrangement for diverting excess storm water into a natural drainage, is

Leaping weir
None of these
Overflow weir
Siphon spill way

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Waste Water Engineering
For estimating the peak run off the rational formula Q = 0.0278 KpA was evolved by

Frubling
All listed here
Kinchling
Lloyd Davis

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