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Waste Water Engineering

Waste Water Engineering
The design period in years for pumping plants, is

5 to 10
2 to 3
1
3 to 5

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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
The angle subtended by the surface of sewer water with partial flow, at sewer centre is 120°, the depth of sewerage is

25 cm
20 cm
40 cm
50 cm

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Waste Water Engineering
The sewer which collects the discharge from a collecting system and delivers it to a treatment plant, is known

House sewer
Lateral sewer
Sewer outfall
Branch sewer

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Waste Water Engineering
Sludge banks are formed if sewage is disposed of in

Lakes
Rivers
None of these
Seas

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Waste Water Engineering
Disposal to sewage in large cities, is done in

Oxidation
Purification
Irrigation
Dilution

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