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Civil Engineering - Waste Water Engineering

Exercise : Waste Water Engineering - Section 5
21.
Aerobic activity is maximum
in freshly produced sewage
at sewer pipes
in sewer treatment plants
none of these.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
22.
In sewers designed with self cleansing velocity,
the bottom is silted
the bottom is scoured
both silting and scouring occur at the bottom
neither silting nor scouring occurs at the bottom.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
23.
Which one of the following resists hydrogen sulphide corrosion
R.C.C.
Glazed stone wares
Asbestos cement
Glazed ware.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
24.
The sewerage system consists of
house sewer
lateral sewer
branch sewer
main sewer
all of these.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
25.
Hume steel pipes are
steel pipes
R.C.C. pipes
steel shell coated from inside with cement mortar
steel shell coated from outside with cement mortar
both (c) and (d).
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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