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Waste Water Engineering

Waste Water Engineering
The sewage is pumped up

From flat areas
All listed here
From basements
From low lying areas

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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

2.50 m
2.45 m
2.40 m
2.30 m

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Waste Water Engineering
If the discharge of a sewer running half is 628 1.p.s., i = 0.001, and n = 0.010, the diameter of the sewer, is

1.59 m
1.49 m
1.69 m
1.39 m

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Waste Water Engineering
Fresh sewage may become stale in

Three to four hours
Two to three hours
One hour
Six hours

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Waste Water Engineering
In a residential colony, sewers of diameters 100 mm, 150 mm and 225 mm were laid with a gradient 1 in 120. Which portion of the sewage system does not choke in due course of time?

All of these
225 mm dia
100 mm dia
150 mm dia

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Waste Water Engineering
Dry weather flow is:

Water supply allowance per capita
Average monthly rate of flow
Average annual rate of flow
Average daily rate of flow

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