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Waste Water Engineering

Waste Water Engineering
The rate of accumulation of sludge per person per year, is

20 litres
10 litres
15 litres
25 litres

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Waste Water Engineering
In case of Imhoff tanks,

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

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Waste Water Engineering
The pH value of sewage is determined with the help of

None of these
Potentiometer
Turbid meter
Imhoff Cone

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Waste Water Engineering
The sludge does not contain waste water from

Kitchen sinks
Bath rooms
Toilets
Wash basins

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Waste Water Engineering
The factor responsible for purification of sewage in river is

Temperature
Hydrology
All listed here
Dissolved oxygen in water

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Waste Water Engineering
In a trickling filter

Both A and B
Filtration process is used
Neither A nor B
Biological action is used

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