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Waste Water Engineering

Waste Water Engineering
The drop man holes are generally provided in sewers for

Cities in plains
Large town ships
Industrial areas
Hilly town ships

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Waste Water Engineering
Aerobic activity is maximum

None of these
In freshly produced sewage
At sewer pipes
In sewer treatment plants

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Waste Water Engineering
The average temperature of sewage in India, is

10°C
20°C
25°C
15°C

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Waste Water Engineering
The screens are fixed

Perpendicular to the direction of flow
Parallel to the direction of flow
At an angle 30° to 60° to the direction of flow
None of these

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Waste Water Engineering
The sewage treatment in septic tanks is due to

None of these
Anaerobic decomposition
Parasitic decomposition
Aerobic decomposition

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Waste Water Engineering
The pH value of fresh sewage is usually

Less than 7
Equal to zero
Equal to 7
More than 7

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