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Waste Water Engineering

Waste Water Engineering
A cylindrical ejector having its height 2 m fills after every 10 minutes with a peak sewage discharge of 0.0157 cumec. The diameter of the ejector chamber, is

2.30 m
2.40 m
2.50 m
2.45 m

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Waste Water Engineering
In a city the ratio of the drainage to sewage is 20, the percentage discharge passing through non-monsoon periods, is

20
5
15
10

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Waste Water Engineering
In olden days the type of section adopted in trunk and out fall sewers was

Circular shaped
Horse shoe shaped
Egg shaped
Parabolic shaped

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Waste Water Engineering
In sewers the gas generally found, is

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

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Waste Water Engineering
The water carried sewerage system removes

Industrial sewage
All listed here
Storm sewage
Domestic sewage

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Waste Water Engineering
The minimum diameter of sewer to be adopted is

25 cm
15 cm
10 cm
12.5 cm

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