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Which of the following has a minimum manning’s coefficient in terms of fair interior surface?

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+1 vote
in Environmental Engineering by (81.4k points)
Which of the following has a minimum manning’s coefficient in terms of fair interior surface?

(a) Plastic smooths

(b) Asbestos cement

(c) Brick

(d) Cement concrete

This question was addressed to me in examination.

Question is taken from Hydraulic Formulae in section Hydraulic Design of Sewers of Environmental Engineering

1 Answer

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Best answer
Right option is (a) Plastic smooths

Best explanation: Plastic smooth has the minimum Manning’s coefficient in terms of the fair interior surface with a value of 0.011.

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