2.2 - Application of Manning's Formula
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Practice Questions
Test your understanding with targeted questions
What does the letter 'n' represent in Manning's formula?
💡 Hint: Think about what affects flow in a channel.
Define what a wetted perimeter is.
💡 Hint: Consider where the water touches the channel.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What is the primary purpose of Manning's formula?
💡 Hint: Think about what you need to know for water flow.
True or False: The wetted perimeter is the same as the total perimeter of the channel.
💡 Hint: Consider where water flows in the channel.
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Challenge Problems
Push your limits with advanced challenges
A trapezoidal channel has a bottom width of 6 m, a slope of 2:1, and an n value of 0.025. What slope must the channel have to carry a discharge of 150 cubic meters per second at a depth of 4 m?
💡 Hint: Don’t forget to check your area and perimeter calculations.
In a circular pipe with an diameter of 1.2 m flowing full, estimate the maximum discharge coefficient if its n value is 0.015 and it is inclined at 1 in 800.
💡 Hint: You may need to find the hydraulic radius prior to plugging values into the equation.
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