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Waste Water Engineering

Waste Water Engineering
In 1000 kg of sewage, the total solids approximate

1 kg to 2.0 kg
5 kg to 7.5 kg
0.5 to 1.0 kg
7.5 kg to 10 kg

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Waste Water Engineering
Drop manholes at the junctions of sewer lines, are provided if

Ordinary manhole cannot be built
Two sewer lines intersect
Invert level of a branch sewer is more than 60 cm that of the main sewer
Sewer line runs along a main road

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Waste Water Engineering
Which one of the following resists hydrogen sulphide corrosion?

Glazed ware
Glazed stone wares
Asbestos cement
R.C.C.

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Waste Water Engineering
The rational formula for peak drainage discharge, was evolved by

Fruhling
All of these
Kuichling
Lloyd David

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Waste Water Engineering
Setting out the alignments of sewers may start from

Any point
Out-fall
City
Tail end

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Waste Water Engineering
Acid regression stage of sludge digestion at a temperature 21°C extends over a period of

15 days
60 days
30 days
90 days

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