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Waste Water Engineering

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

5
10
2
0.25

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Waste Water Engineering
Which one of the following gases is most significant as air pollutant?

Carbondioxide
Nitrogen
Sulphur-dioxide
Oxygen

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Waste Water Engineering
Facultative bacteria survive in

Both cases A and B
Neither A nor B
The absence of oxygen
The presence of oxygen

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Waste Water Engineering
The use of coarse screens for the disposal of sewage, may be dispensed with by

Shredder
Both A and B
Comminutor
Neither A nor B

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Waste Water Engineering
The water carried sewerage system removes

Storm sewage
All listed here
Industrial sewage
Domestic sewage

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Waste Water Engineering
For evaporation and measurement of settable solids, the apparatus used, is

A test tube
An Imhoff cone
A jar
A breaker

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