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Waste Water Engineering

Waste Water Engineering
The rate of accumulation of sludge per person per year, is

15 litres
10 litres
25 litres
20 litres

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Waste Water Engineering
A nuisance is experienced in diluting water if dilution factor is less than

100
60
20
40

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Waste Water Engineering
During preliminary treatment of a sewage

Girt and sand are removed by girt chambers
Floating materials are removed by screening
All listed here
Oil and grease are removed from skimming tanks

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Waste Water Engineering
To maintain aerobic biological activity, the moisture content of the compost mass should be about

0.55
0.45
0.6
0.5

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Waste Water Engineering
The asbestos cement pipes are generally laid

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

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Waste Water Engineering
In SI units the power of sound is represented in

Watts
Kgs
Joules
Newtons

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