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Waste Water Engineering

Waste Water Engineering
The sewer that unloads the sewage at the point of treatment is called

House sewer
Outfall sewer
Main sewer
Branch sewer

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Waste Water Engineering
In sewers the gas generally found, is

All listed here
Methane (CH4)
Hydrogen sulphide (H2S)
Carbon dioxide (CO2)

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Waste Water Engineering
For the COD test of sewage, organic matter is oxidised by K₂Cr₂O₇ in the presence of

None of these
H₂SO₄
HCl
HNO₃

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Waste Water Engineering
The discharge per unit plan area of a sedimentation tank, is generally called

All of these
Over flow velocity
Surface loading
Over flow rate

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Waste Water Engineering
Fresh sewage is generally

Highly decomposed
Alkaline
Acidic
A source of objectionable odour

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Waste Water Engineering
Bottom openings 15 cm × 15 cm in the standing baffle wall are provided

22.5 cm c/c
50 cm c/c
15 cm c/c
30 cm c/c

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