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Waste Water Engineering

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

Hardness
Suspended solids
Sediments
Bacterias

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Waste Water Engineering
In very first stage of decomposition of the organic matter in sewage

Nitrates are formed
Nitrites are formed
Ammonia is formed
Carbondioxide is formed

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Waste Water Engineering
The digested sludge from septic tanks, is removed after a maximum period of

5 years
4 years
3 years
3.5 years

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Waste Water Engineering
The average temperature of sewage in India, is

25°C
10°C
15°C
20°C

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Waste Water Engineering
Sewer manholes are generally provided at

The change of direction
The change of gradient
The junctions of sewers
All of these

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Waste Water Engineering
For providing an Indian type W.C., the R.C.C. slabs in the toilet portion

Should be sunk by 50 cm
Need not be sunk
Should be sunk by 20 cm
Should be kept 20 cm above the adjacent portion

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MORE MCQ ON Waste Water Engineering

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