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Waste Water Engineering

Waste Water Engineering
An inverted siphon is designed generally for

Four pipes
One pipe
Three pipes
Two pipes

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Waste Water Engineering
For trunk and out-fall, the type of sewers generally used, is

Standard egg shaped
Circular shaped
Parabolic shaped
Horse shoe shaped

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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
The minimum recommended diameter of sewers, is

10 cm
15 cm
20 cm
5 cm

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Waste Water Engineering
The sewage discharge in a detritus tank of a treatment plant is 576 litres/sec with flow velocity of 0.2 m/sec. If the ratio of width to depth is 2, the depth is

100 cm
120 cm
110 cm
150 cm

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

0.55
0.5
0.45
0.6

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