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Civil Engineering - Waste Water Engineering

Exercise : Waste Water Engineering - Section 1
11.
Pick up the correct statement from the following :
In treated sewage, 4 PPm of D.O. is essential
Only very fresh sewage contains some dissolved oxygen
The solubility of oxygen in sewage is 95% that is in distilled water
All the above.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
12.
In olden days the type of section adopted in trunk and out fall sewers was
parabolic shaped
horse shoe shaped
egg shaped
circular shaped.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
13.
For the survival of fish in a river stream, the minimum dissolved oxygen is prescribed
3 PPm
4 PPm
5 PPm
10 ppm.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
14.
In a fully mechanised composting plant, involves
mechanized receipt
mechanized segregation
mechanized pulverising of refuse
all of these.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
15.
Self-cleansing velocity is
velocity at dry weather flow
velocity of water at flushing
velocity at which no accumulation remains in the drains
velocity of water in a pressure filter.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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