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Waste Water Engineering

Waste Water Engineering
During purification process of sewage the gas given off, is

Ammonia
All listed here
Carbon dioxide
Hydrogen

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

3 days
5 days
1 day
2 days

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Waste Water Engineering
The ratio of the diameter of a circular section and the side of a square section hydraulically equivalent, is

1.065
1.085
1.095
1.075

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

Standard egg shaped
Circular shaped
Parabolic shaped
Horse shoe shaped

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Waste Water Engineering
In Chezy’s formula V = C rs for calculating the velocity of flow in circular sewer of diameter running full, the value of hydraulic mean radius is

D/3
D/4
D/2
D/1

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Waste Water Engineering
Lead caulked joints are used for laying

G.I. pipes
Stone ware pipes
I. pipes
Earthenware pipes

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MORE MCQ ON Waste Water Engineering

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