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A circular section of sewer gives _______  area for a given perimeter.

(a) Small

(b) Large

(c) Minimum

(d) Maximum

The question was posed to me in an online interview.

Question is taken from Hydraulic Elements of Circular Sewers topic in division Hydraulic Design of Sewers of Environmental Engineering

1 Answer

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Best answer
Right option is (d) Maximum

Explanation: A circular section of sewer gives a maximum area for a given perimeter and gives the greatest hydraulic mean depth when running full or half.

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