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Civil Engineering - Waste Water Engineering

Exercise : Waste Water Engineering - Section 2
46.
The ratio of the diameter of a circular section and the side of a square section hydraulically equivalent, is
1.095
1.085
1.075
1.065
Answer: Option
Explanation:
No answer description is available. Let's discuss.
47.
Pick up the correct statement from the following :
The maximum rate of storm run off is called peak drainage discharge
Rational method of estimating peak run off, may be used precisely for areas less than 50 hectares
The period after which the entire area starts contributing to the run off, is called the time of concentration
The time required by water to reach the outlet of a catchment from the most remote point, is called time of concentration
All the above.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
48.
For trunk and out-fall, the type of sewers generally used, is
standard egg shaped
circular shaped
horse shoe shaped
parabolic shaped
semi-elliptical shaped.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
49.
Pick up the incorrect statement from the following :
Septic tanks are horizontal continuous flow type of sedimentation tanks
Septic tanks are generally provided a detention period of 12 to 36 hours
Septic tanks are completely covered and high vent shafts are provided for the escape of foul gases
Septic tanks are generally classified as tanks which work on the principle of anaerobic decomposition
None of these.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
50.
Hydraulic mean radius is
mean radius of sewer
difference in heads between two points in circular pipes
mean of radii in a pipe line of varying cross-sections
cross-sectional area/wetted perimeter.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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