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Waste Water Engineering

Waste Water Engineering
Imhoff cone is used to determine

Suspended solids
None of these
Settleable solids
Dissolved solids

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Waste Water Engineering
For efficient working of a sewer, it must be ensured that

A maximum velocity of 0.90 m/sec, is maintained at its maximum flow
Neither (A) nor (B)
Minimum velocity of 0.45 m/sec, is maintained at its minimum flow
Both (A) and (B)

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Waste Water Engineering
In sewers designed with self cleansing velocity,

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

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Waste Water Engineering
In a fully mechanised composting plant, involves

All of these
Mechanized pulverising of refuse
Mechanized segregation
Mechanized receipt

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Waste Water Engineering
The spacing of bars for perforations in coarse screens used for the treatment of sewage, is

30 mm
50 mm
20 mm
40 mm

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Waste Water Engineering
Sewer manholes are generally provided at

The change of gradient
All of these
The change of direction
The junctions of sewers

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