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Waste Water Engineering

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

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

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Waste Water Engineering
The ratio of minimum hourly flow to the average flow of sewage is

43832
43834
43833
43894

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Waste Water Engineering
Ventilating shafts are provided to a sewer line at every

150 m
300 m
100 m
200 m

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Waste Water Engineering
If is the rugosity coefficient, is the bed slope of sewer, the velocity of flow in m/sec may be obtained by the formula V = (1/n) r2/3 s1/2 evolved by

Chezy
Bazin
Manning
Kutter

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Waste Water Engineering
The grit and silt of the grit chambers, may not be used for

Concreting
Raising low lying areas by dumping
Both A and B
Neither A nor B

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Waste Water Engineering
The settlement of a particle in sedimentation tank, is affected by

Size and shape of solid
All listed here
Viscosity of water
Velocity of flow

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