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Civil Engineering - Waste Water Engineering

Exercise : Waste Water Engineering - Section 2
16.
Pick up the correct statement from the following :
Indore method of composting involves decomposition under aerobic conditions
Bangalore method of composting involves decomposing under anaerobic conditions
Fully stabilised refuse by the Bangalore method of compositing is a powdery mass called humus
all of these.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
17.
The liquid wastes from kitchens, bath rooms and wash basins, is not called
liquid waste
sullage
sewage
none of these.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
18.
The presence of free ammonia in sewage, is detected by
boiling
adding pottassium permanganate
adding sulphuric acid
phenol-di-sulphuric acid.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
19.
The amount of oxygen consumed by the aerobic bacterias which cause the aerobic biological decomposition of sewage, is known
Bio-Chemical Oxygen Demand (B.O.D.)
Dissolved Oxygen (D.O.)
Chemical Oxygen Demand (C.O.D.)
None of these.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
20.
The standard B.O.D. of water is taken for
1 day
2 days
3 days
5 days
10 days.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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