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Waste Water Engineering

Waste Water Engineering
The liquid wastes from kitchens, bath rooms and wash basins, is not called

None of these
Liquid waste
Sewage
Sullage

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Waste Water Engineering
pH value of sludge during alkaline regression stage, is

More than 6
Less than 7
Less than 6
More than 7

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Waste Water Engineering
For large sewers, maximum distance between manholes may be

200 m
300 m
50 m
100 m

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Waste Water Engineering
If the peak discharge of a storm water drain (S.W. Drain) is expected to exceed 150 cumecs, the free board to be provided, is

50 cm
90 cm
80 cm
100 cm

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Waste Water Engineering
In sewers designed with self cleansing velocity,

The bottom is scoured
Both silting and scouring occur at the bottom
Neither silting nor scouring occurs at the bottom
The bottom is silted

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Waste Water Engineering
In sewers the highest non-scouring velocity is achieved in

Cast iron sewers
Glazed bricks sewers
Cement concrete sewers
Stone ware sewers

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