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Waste Water Engineering

Waste Water Engineering
For laying a sewer line in a trench of 2 m width, an offset line is marked on the ground parallel to the given centre line at a distance of

100 cm
140 cm
120 cm
160 cm

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Waste Water Engineering
The design period in years for pumping plants, is

1
3 to 5
5 to 10
2 to 3

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Waste Water Engineering
During purification process of sewage the gas given off, is

All listed here
Ammonia
Hydrogen
Carbon dioxide

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

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

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Waste Water Engineering
The standard B.O.D. of water is taken for

1 day
5 days
3 days
2 days

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Waste Water Engineering
In case of Imhoff tanks,

All of these
The shape is rectangular
The velocity of flow is restricted to 0.30 m/minute
Detention period is 2 hours

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