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Waste Water Engineering

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
2.40 m
2.45 m
2.30 m

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Waste Water Engineering
The standard B.O.D. of water is taken for

2 days
5 days
1 day
3 days

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Waste Water Engineering
Self-cleansing velocity is

Velocity at dry weather flow
Velocity of water at flushing
Velocity at which no accumulation remains in the drains
Velocity of water in a pressure filter

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

Kinchling
Lloyd Davis
All listed here
Frubling

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Waste Water Engineering
The screens are fixed

At an angle 30° to 60° to the direction of flow
Parallel to the direction of flow
Perpendicular to the direction of flow
None of these

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Waste Water Engineering
The drop man holes are generally provided in sewers for

Large town ships
Industrial areas
Cities in plains
Hilly town ships

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