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Waste Water Engineering

Waste Water Engineering
The factor responsible for purification of sewage in river is

Temperature
Hydrology
Dissolved oxygen in water
All listed here

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Waste Water Engineering
The gas evolved in sewers is

All of these
Hydrogen sulphide
Carbondioxide
Methane

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Waste Water Engineering
The width of a rectangular sewer is twice its depth while discharging 1.5 m/sec. The width of the sewer is

1.76 m
0.88 m
0.68 m
1.36 m

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Waste Water Engineering
Self-cleansing velocity is

Velocity at which no accumulation remains in the drains
Velocity at dry weather flow
Velocity of water at flushing
Velocity of water in a pressure filter

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Waste Water Engineering
R.M.O. expenses include

Operation expenses
Maintenance expenses
Running expenses
All of these

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Waste Water Engineering
House connections to the laterals is generally made by

Cast iron
P.C.C.
Glazed stonewares
R.C.C.

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MORE MCQ ON Waste Water Engineering

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