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Waste Water Engineering

Waste Water Engineering
The most efficient cross section of sewers in a separate sewerage system is

Rectangular
Circular
New egged
Parabolic

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Waste Water Engineering
A cylindrical ejector having its height 2 m fills after every 10 minutes with a peak sewage discharge of 0.0157 cumec. The diameter of the ejector chamber, is

2.45 m
2.30 m
2.40 m
2.50 m

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Waste Water Engineering
For sewers, inverted siphon is provided for

Three pipes
Four pipes
One pipe
Two pipes

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Waste Water Engineering
For estimating the peak run off the rational formula Q = 0.0278 KpA was evolved by

All listed here
Kinchling
Lloyd Davis
Frubling

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Waste Water Engineering
Discrete or granular particles change their

Shape
None of these
Weight
Size

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Waste Water Engineering
For trunk sewers more than 1.25 m in diameter, the ratio of the maximum daily sewage flow to the average daily sewage flow is assumed

3
2
1.5
2.5

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