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Waste Water Engineering

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

Lloyd Davis
Kinchling
All listed here
Frubling

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Waste Water Engineering
In R.C. sewer pipes, the percentage longitudinal reinforcement to the cross-sectional area of concrete is kept

0.25
2
5
10

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Waste Water Engineering
The gas which may cause explosion in sewers, is

Methane
Carbondioxide
Ammonia
Carbon monoxide

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Waste Water Engineering
The dimensions of a rectangular settling tank are: length 24 m, width 6 m and depth 3 m. If 2 hour detention period for tanks is recommended, the rate of flow of sewage per hour, is

208 cu.m
216 cu.m
212 cu.m
204 cu.m

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

5 days
3 days
1 day
2 days

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Waste Water Engineering
Inter-distance between ventilation columns in a sewer line is kept

100 m to 150 m
25 to 50 m
50 m to 100 m
150 m to 300 m

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