Q. The base width of a most economical rectangular channel is 8m, calculate the hydraulic radius of the channel.

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Q. Calculate the section factor for the most economical rectangular section having depth of 4m.

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Q. The ratio between maximum discharge and top width of a rectangular channel is 91:50, calculate the depth of the channel if the bed slope is 1 in 3000 and C = 50.

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Q. The ratio between normal discharge and maximum discharge through a rectangular channel is 32:6, calculate the depth of the channel if the width of the channel is 4m and bed slope, chezy’s constant remains same.

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Q. The hydraulic radius of an economical rectangular section is 4m, calculate the discharge through the channel if the bed slope of the channel is 1 in 1000 and manning’s co efficient is 0.015.

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Q. Determine the top width length of the most economical trapezoidal channel section having depth y and side slope Z.

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Q. Estimate the hydraulic radius of the most economical trapezoidal channel section having depth y and side slope Z.

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Q. The top width of a most economical trapezoidal channel section is 7m and the side slope of the channel is 1H:2V, determine the depth of the channel section.

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Q. The top width of a most economical trapezoidal channel section is 8m, determine the hydraulic radius of the channel if the side slope is 1H:3V.

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Q. The base of the most economical trapezoidal channel section is 6m and the side slope is 1H:2V, calculate the maximum discharge through the channel if the bed slope is 1 in 1000 and C = 50.

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Q. Calculate the maximum discharge through a trapezoidal section having depth 3m, side slope 1H:4V and bed slope of 1 in 2000. Given: n = 0.025.

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Q. The wetted area of a most economical trapezoidal section is 21.58m², base width of 5m and side slope of 1H:3V. Calculate the maximum discharge through the channel if the C=60 and S₀=1/500.

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Q. Calculate the depth of the most economical trapezoidal channel section having wetted area equal to 50m² and the side slope of 1H:5V.

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Q. The wetted perimeter of the most economical trapezoidal section is 7.47m, the base width is 3m and has the side slope of 1H:2V.

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Q. Calculate the maximum discharge through a trapezoidal channel if the wetted perimeter is 6.24m, side slope of 1H:2V and base width of 4m. Given: C=55 and S₀=1/1500.

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Q. The maximum discharge through the trapezoidal channel is 20 m³/s and the velocity of flow is 5 m/s. Calculate the base width of the channel if the side slope is 1H:4V.

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Q. What is the side slope for the most economic trapezoidal channel having depth y and base width B?

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Q. What is the angle made by the sloping side when the trapezoidal channel discharges to the maximum extent?

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Q. Calculate the maximum discharge through a trapezoidal channel if the depth is 5m.

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Q. If the side slope angle in a trapezoidal section is 45° and it discharges to the maximize extent, calculate the top width of the channel section. Given: y = 4m

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