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Waste Water Engineering

Waste Water Engineering
As compared to fresh river water, sea water contains oxygen

20% less
10% more
10% less
20% more

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Waste Water Engineering
The laying of sewers is done with

Clinometer
Magnetic compass
Theodolite
Level

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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
40 cm
50 cm
20 cm

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Waste Water Engineering
Water content of sewage is about

0.999
0.99
0.9
0.95

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Waste Water Engineering
For a continuous flow type of sedimentation tanks

Width of the tank is normally kept about 6 m
Maximum horizontal flow velocity is limited to 0.3 m/minute
Length of the tank is normally kept 4 to 5 times the width
All listed here

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Waste Water Engineering
The sludge does not contain waste water from

Wash basins
Kitchen sinks
Bath rooms
Toilets

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MORE MCQ ON Waste Water Engineering

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