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Waste Water Engineering

Waste Water Engineering
In a sludge tank, the gas mainly produced, is

Oxygen
Hydrogen
Nitrogen
Carbon dioxide

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Waste Water Engineering
The maximum spacing of manholes specified by Indian standard in sewers upto 0.3 m diameter is

45 m
75 m
20 m
30 m

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Waste Water Engineering
The density of population over 40 hectares is 250/hectare. If water supply demand per day is 200 litres and sewage discharge is 80% of water supply, the sewage flow in sewers of separate system, is

0.05552 cumec
0.05554 cumec
0.0556 cumec
0.05556 cumec

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Waste Water Engineering
For trunk sewers more than 1.25 m in diameter, the ratio of the maximum daily sewage flow to the average daily sewage flow is assumed

2
1.5
2.5
3

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Waste Water Engineering
The sewerage system originates from

House sewers
Main sewers
Branch sewers
Lateral sewers

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Waste Water Engineering
The underground sewers are more subjected to

Compressive force
Shearing force
Bending force
Tensile force

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MORE MCQ ON Waste Water Engineering

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