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Waste Water Engineering

Waste Water Engineering
Sludge banks are formed if sewage is disposed of in

None of these
Rivers
Seas
Lakes

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Waste Water Engineering
The minimum recommended diameter of sewers, is

5 cm
20 cm
15 cm
10 cm

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Waste Water Engineering
The intensity of rain is expressed in

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

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Waste Water Engineering
The grit chambers of sewage treatment plants, are generally cleaned after

7 days
12 days
2 days
14 days

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Waste Water Engineering
The ratio of the diameter of a circular section and the side of a square section hydraulically equivalent, is

1.075
1.095
1.085
1.065

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Waste Water Engineering
The ratio of maximum sewage flow to average sewage flow for trunk mains having diameters more than 1.25 m, is

3
4
1.5
2

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