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Waste Water Engineering

Waste Water Engineering
Oxidation process results in the formation of

Carbon dioxide
All of these
Nitrates
Sulphates

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Waste Water Engineering
The minimum diameter of sewer to be adopted is

12.5 cm
25 cm
10 cm
15 cm

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Waste Water Engineering
The water carried sewerage system removes

Storm sewage
Industrial sewage
Domestic sewage
All listed here

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Waste Water Engineering
In case of Imhoff tanks,

Detention period is 2 hours
All of these
The velocity of flow is restricted to 0.30 m/minute
The shape is rectangular

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Waste Water Engineering
As compared to fresh river water, sea water contains oxygen

20% less
10% less
20% more
10% more

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Waste Water Engineering
Acid regression stage of sludge digestion at a temperature 21°C extends over a period of

15 days
90 days
30 days
60 days

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MORE MCQ ON Waste Water Engineering

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