Neco 2018 Geography Question 18
Practice objective / multiple choice question 18 from the 2018 Neco Geography examination.
An open rectangular drainage channel has a uniform slope of 0.0015 and Manning's roughness coefficient \(n=0.015\). The depth of flow is fixed at 1.2 m. The required discharge is 12 m³ s\(^{-1}\).\n\nDetermine the minimum channel width \(b\) (in metres, to two decimal places) that will convey the required discharge.
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About This Question
This is Neco 2018 Geography Question 18. It is one of the objective questions from the 2018 Neco Geography examination.
Difficulty level: Medium .
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