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Waste Water Engineering

Waste Water Engineering
Imhoff cone is used to determine

Settleable solids
Dissolved solids
None of these
Suspended solids

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Waste Water Engineering
The ratio of maximum sewage flow to average sewage flow for mains up to 1 m in diameter, is

2
4
1.5
3

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

Aerobic decomposition
Parasitic decomposition
None of these
Anaerobic decomposition

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Waste Water Engineering
R.M.O. expenses include

Operation expenses
Maintenance expenses
Running expenses
All of these

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Waste Water Engineering
In sewage, the solids in mg per litre is

500 to 1000
1500 to 2000
100 to 500
1000 to 1500

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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
50 cm
80 cm
100 cm

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