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Waste Water Engineering

Waste Water Engineering
In normal conditions, the period for sludge digestion, is

10 days
30 days
20 days
60 days

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Waste Water Engineering
Imhoff cone is used to determine

None of these
Suspended solids
Dissolved solids
Settleable solids

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

All of these
Kuichling
Fruhling
Lloyd David

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Waste Water Engineering
The asbestos cement pipes are generally laid

Horizontally
At an angle of 60°
Vertically
At an angle of 30°

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Waste Water Engineering
Bio-chemical oxygen demand (BOD) for the first 20 days in generally referred to

Carbonaceous demand
Initial demand
All of these
First stage demand

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Waste Water Engineering
With self cleansing velocity in sewers

Silting occurs at bottom
Scouring occurs at bottom
Neither silting nor scouring occurs at bottom
Both silting and scouring occur at bottom

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