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Waste Water Engineering

Waste Water Engineering
The intensity of rain is expressed in

cm/hour
cm/day
None of these
cm/minute

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

25 cm
15 cm
12.5 cm
10 cm

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Waste Water Engineering
In a sludge tank, the gas mainly produced, is

Carbon dioxide
Hydrogen
Nitrogen
Oxygen

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Waste Water Engineering
For evaporation and measurement of settable solids, the apparatus used, is

An Imhoff cone
A jar
A breaker
A test tube

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Waste Water Engineering
The effluent of a septic tank is

As good as that from a complete treatment
None of these
Fit for discharge into any open drain
Foul and contains dissolved and suspended solids

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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
10
15

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