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Waste Water Engineering

Waste Water Engineering
The sewer which transports the sewage to the point of treatment, is called

House sewer
Out-fall sewer
Main sewer
Branch sewer

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Waste Water Engineering
Lead caulked joints are used for laying

I. pipes
Stone ware pipes
Earthenware pipes
G.I. pipes

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Waste Water Engineering
The settlement of a particle in sedimentation tank, is affected by

Velocity of flow
Size and shape of solid
Viscosity of water
All listed here

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

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

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Waste Water Engineering
The sewerage system consists of

House sewer
All of these
Lateral sewer
Branch sewer

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Waste Water Engineering
The detention time (t) of a settling tank, may be defined as the time required for

None of these
The flow of sewage to fill the tank
A particle to travel from top surface to bottom sludge zone
A particle to travel along its length

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