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Waste Water Engineering

Waste Water Engineering
Ventilating shafts are provided to a sewer line at every

300 m
200 m
100 m
150 m

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Waste Water Engineering
If the diameter of sewer is 225 mm, the gradient required for generating self cleansing velocity, is

None of these
1 in 120
1 in 100
1 in 60

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Waste Water Engineering
The quantity of liquid waste which flows in sewers during the period of rainfall, is known

None of these
Sanitary sewage
Industrial waste
Storm sewage

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Waste Water Engineering
In sewage, the solids in mg per litre is

1500 to 2000
100 to 500
1000 to 1500
500 to 1000

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Waste Water Engineering
Fresh sewage is generally

Highly decomposed
A source of objectionable odour
Alkaline
Acidic

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

Lloyd Davis
All listed here
Kinchling
Frubling

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