Waec Model Questions Vol1 2022 Geography Question 10
Practice objective / multiple choice question 10 from the 2022 Waec Model Questions Vol1 Geography examination.
A rectangular open channel with a bottom width of 1.2 m and side slopes of 1 : 1 (horizontal : vertical) is to convey a design discharge of 2.5 m³/s. The Manning roughness coefficient is n = 0.015 and the permissible bed shear stress is 2.0 N/m². Determine the required flow depth (in cm, rounded to the nearest whole cm) that satisfies both the discharge requirement and the shear‑stress limit.
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About This Question
This is Waec Model Questions Vol1 2022 Geography Question 10. It is one of the objective questions from the 2022 Waec Model Questions Vol1 Geography examination.
Difficulty level: Medium .
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