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Waste Water Engineering

Waste Water Engineering
In sewers the gas generally found, is

Hydrogen sulphide (H2S)
Methane (CH4)
Carbon dioxide (CO2)
All listed here

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

Oxidation
Dilution
Purification
Irrigation

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Waste Water Engineering
The ratio of the diameter of a circular section and the side of a square section hydraulically equivalent, is

1.065
1.085
1.095
1.075

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

43834
43894
43833
43832

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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
A manhole is generally provided at each

Change of gradient
All of these
Bend
Junction

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