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Waste Water Engineering

Waste Water Engineering
If the side of a square sewer is 1000 mm, the diameter of a hydraulically equivalent circular section, is

1075 mm
1065 mm
1045 mm
1095 mm

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Waste Water Engineering
The sewer which collects the discharge from a collecting system and delivers it to a treatment plant, is known

Sewer outfall
Branch sewer
House sewer
Lateral sewer

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Waste Water Engineering
For a continuous flow type of sedimentation tanks

Maximum horizontal flow velocity is limited to 0.3 m/minute
Width of the tank is normally kept about 6 m
All listed here
Length of the tank is normally kept 4 to 5 times the width

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

40 mm
50 mm
20 mm
30 mm

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Waste Water Engineering
The sewerage system originates from

Main sewers
Branch sewers
Lateral sewers
House sewers

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Waste Water Engineering
depends upon The Chezy’s constant C in the formula V = C

All listed here
Roughness of sewer surface
Shape of the sewer
Size of the sewer

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