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Civil Engineering - Waste Water Engineering

Exercise : Waste Water Engineering - Section 6
16.
The normal value of over flow rates for plain primary sedimentation tanks, ranges between
25, 000 to 35, 000 litres/sqm/day
40, 000 to 50, 000 litres/sqm/day
50, 000 to 60, 000 litres/sqm/day
80, 000 to 100, 000 litres/sqm/day
none of these.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
17.
The asbestos cement sewers are
light in weight
not structurally strong to bear large compressive stress
susceptible to corrosion by sulphuric acid
All the above.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
18.
Bottom openings 15 cm x 15 cm in the standing baffle wall are provided
15 cm c/c
22.5 cm c/c
30 cm c/c
50 cm c/c.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
19.
Faculative bacterias survive in
the presence of oxygen
the absence of oxygen
both cases (a) and (b)
neither (a) nor (b).
Answer: Option
Explanation:
No answer description is available. Let's discuss.
20.
The ratio of maximum sewage flow to average sewage flow for trunk mains having diameters more than 1.25 m, is
1.5
2.0
3.0
4.0
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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