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Waste Water Engineering

Waste Water Engineering
In a city the ratio of the drainage to sewage is 20, the percentage discharge passing through non-monsoon periods, is

20
5
15
10

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Waste Water Engineering
For house drainage minimum gradient is

1 in 10
1 in 80
1 in 400
1 in 60

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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

1.69 m
1.49 m
1.39 m
1.59 m

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Waste Water Engineering
For the survival of fish in a river stream, the minimum dissolved oxygen is prescribed

3 ppm
5 ppm
4 ppm
10 ppm

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Waste Water Engineering
The formula V = (1/n) r2/3

Manning’s formula
Chezy’s formula
Bazin’s formula
Kutter’s formula

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Waste Water Engineering
For trunk and out-fall, the type of sewers generally used, is

Circular shaped
Horse shoe shaped
Standard egg shaped
Parabolic shaped

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MORE MCQ ON Waste Water Engineering

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