Neco 2022 Geography Question 46
Practice objective / multiple choice question 46 from the 2022 Neco Geography examination.
An area of 12 km\(^2\) is drained by a pipe that can convey a maximum discharge of 150 m\(^3\)/s. The land use is 40% agricultural (runoff coefficient \(C=0.15\)), 35% residential (\(C=0.30\)) and 25% forest (\(C=0.05\)). Using the rational method \(Q = 0.278\,C\,i\,A\) (where \(i\) is rainfall intensity in mm/hr and \(A\) is area in km\(^2\)), determine the greatest rainfall intensity \(i_{\text{max}}\) (in mm/hr) that will not cause overflow. Give your answer to two decimal places.
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About This Question
This is Neco 2022 Geography Question 46. It is one of the objective questions from the 2022 Neco Geography examination.
Difficulty level: Medium .
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