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

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

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

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Waste Water Engineering
If the peak discharge of a storm water drain (S.W. Drain) is expected to exceed 150 cumecs, the free board to be provided, is

90 cm
50 cm
100 cm
80 cm

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Waste Water Engineering
Chlorination of water is done for the removal of

Hardness
Sediments
Suspended solids
Bacterias

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Waste Water Engineering
The pH value of sewage is determined with the help of

None of these
Turbid meter
Potentiometer
Imhoff Cone

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

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

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