1. A trapezoidal channel is to be designed to carry 280m3/minute of water. Determine the cross – sectional dimensions of the channel if the slope is 1 in 1600, side slopes 45oand the cross – section is to be a minimum, take c = 50 in si units2.Determine the best section for a semi-circular cross section.3. Find the best dimension for a rectangular channel to carry a flow of 0.5m3/s at a velocity of 1.2m2/s. Assignment1. Derive from first principle the chezy equation for uniform flow.2. A channel 5m wide at the top and 2m deep has sides sloping 2 vertically in 1 horizontally.The slope of the channel is 1 in 1000. Find the volume rate of flow when the depth of wateris constant at 1m. Take c = 53 in si units. What will be the depth of water if the flow were tobe doubled? [q = 4.79m/s, h = 1.6m]3. A trapezoidal channel is to be designed to carry 280m3/minute of water. Determine thecross – sectional dimensions of the channel if the slope is 1 in 1600, side slopes 45° and thecross – section is to be a minimum, take c = 50 in si units. [h = 1.53m, b = 1.27m]4. A 2.0m diameter concrete pipe on a slope of 0.005 is to carry water at a normal depth of1.5m. Determine the flow velocity and flow rate. Take n=0.014. Also determine q whenho=0.75 and h=1.0m5. Prove that the best hydraulic section for a rectangular channel6. Determine the best section for a semi-circular cross section.7. Find the best dimension for a rectangular channel to carry a flow of 0.5m/s at a velocity of1.2m/s.

Let 'b' be the bottom width and 'd' be depth of water The side slope be 1 vertical to n horizontal…

Answered: 1. A trapezoidal channel is to be…

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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1. A trapezoidal channel is to be designed to carry 280m3/minute of water. Determine the
cross – sectional dimensions of the channel if the slope is 1 in 1600, side slopes 45o
and the
cross – section is to be a minimum, take c = 50 in si units

2.Determine the best section for a semi-circular cross section.
3. Find the best dimension for a rectangular channel to carry a flow of 0.5m3
/s at a velocity of
1.2m2
/s.

Assignment
1. Derive from first principle the chezy equation for uniform flow.
2. A channel 5m wide at the top and 2m deep has sides sloping 2 vertically in 1 horizontally.
The slope of the channel is 1 in 1000. Find the volume rate of flow when the depth of water
is constant at 1m. Take c = 53 in si units. What will be the depth of water if the flow were to
be doubled? [q = 4.79m/s, h = 1.6m]
3. A trapezoidal channel is to be designed to carry 280m3/minute of water. Determine the
cross – sectional dimensions of the channel if the slope is 1 in 1600, side slopes 45° and the
cross – section is to be a minimum, take c = 50 in si units. [h = 1.53m, b = 1.27m]
4. A 2.0m diameter concrete pipe on a slope of 0.005 is to carry water at a normal depth of
1.5m. Determine the flow velocity and flow rate. Take n=0.014. Also determine q when
ho=0.75 and h=1.0m
5. Prove that the best hydraulic section for a rectangular channel
6. Determine the best section for a semi-circular cross section.
7. Find the best dimension for a rectangular channel to carry a flow of 0.5m/s at a velocity of
1.2m/s.

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