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Waste Water Engineering

Waste Water Engineering
The porosity of sediments in sewer pipes, is usually taken as

0.01
0.011
0.013
0.012

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Waste Water Engineering
The maximum depth of sedimentation tanks, is kept

3.5 m
4.5 m
3 m
4 m

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Waste Water Engineering
The disintegrating pump in which solid matter is broken up before passing out, is

Reciprocating pump
None of these
Pneumatic ejector
Centrifugal pump

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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 sewer which resists sulphide corrosion, is

R.C. sewer
Cast iron sewer
Lead sewer
Brick sewer

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Waste Water Engineering
Dry water flow in a combined sewer, is

Storm water
Industrial sewage
Domestic sewage
Inclusive of domestic and industrial sewage but excludes storm water

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