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Civil Engineering - Waste Water Engineering

Exercise : Waste Water Engineering - Section 5
1.
Sewer pipes need be checked for
minimum flow
maximum flow
both (a) and (b)
none of these.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
2.
If D.O. concentration falls down to zero in any natural drainage, it indicates the zone of
degradation
active decomposition
recovery
cleaner water
none of these.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
3.
The ratio of design discharge to the surface area of a sedimentation tank is called
surface loading
overflow rate
overflow velocity
all of these.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
4.
The value of Chezy's constant

is used in
Chezy's formula
Bazin's formula
Kutter's
Manning's formula.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
5.
In the activated sludge process
aeration is continued till stability
aeration is done with an admixture of previously aerated sludge
sludge is activated by constant stirring
water is removed by centrifugal action.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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