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Waste Water Engineering

Waste Water Engineering
A manhole is generally provided at each

Bend
Change of gradient
All of these
Junction

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Waste Water Engineering
15 cumecs, the depth d and width are related by For drains up to

d = 0.5 B
d = 0.2 B
B = 0.5 d
B = 0.2 d

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Waste Water Engineering
In 1000 kg of sewage, the total solids approximate

7.5 kg to 10 kg
5 kg to 7.5 kg
1 kg to 2.0 kg
0.5 to 1.0 kg

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Waste Water Engineering
In normal conditions, the period for sludge digestion, is

20 days
10 days
30 days
60 days

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Waste Water Engineering
The ratio of design discharge to the surface area of a sedimentation tank is called

Surface loading
Overflow rate
All of these
Overflow velocity

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Waste Water Engineering
Pathogens (or pathogenic bacterias) in water may cause

All listed here
Cholera
Typhoid
Dysentery

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