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Waste Water Engineering

Waste Water Engineering
Bottom openings 15 cm × 15 cm in the standing baffle wall are provided

15 cm c/c
22.5 cm c/c
50 cm c/c
30 cm c/c

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Waste Water Engineering
If the peak discharge of a storm water drain (S.W. Drain) is expected to exceed 150 cumecs, the free board to be provided, is

90 cm
80 cm
50 cm
100 cm

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Waste Water Engineering
If the length of overland flow from the critical point to the mouth of drain is 13.58 km and difference in level between the critical point and drain mouth is 10 m, the inlet time is

2 hours
4 hours
6 hours
8 hours

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Waste Water Engineering
Oxidation process results in the formation of

Carbon dioxide
All of these
Nitrates
Sulphates

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Waste Water Engineering
In circular sewers if depth of flow is 0.2 times the full depth, the nominal gradient,

Is not enough
Is trebled
Is only provided
Is doubled

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Waste Water Engineering
The water carried sewerage system removes

Industrial sewage
All listed here
Storm sewage
Domestic sewage

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