Question 1 Calculate the Hydraulic Radius for a trapezoidal channel that has a bottom width of...

Question 1

Calculate the Hydraulic Radius for a trapezoidal channel that has a bottom width of 4 feet, side slopes, s = 20, a Manning’s n value of 0.012, and bottom slope of 1.5%, and a depth of flow of 1 foot.

a.
0.54 ft

b.
1.3 ft

c.
2.1 ft

d.
2.9 ft

e.
3.7 ft

2 points

Question 2

A trapezoidal channel that has a bottom width of 4 feet, side slopes 2:1 (H:V) and bottom slope of 1.0%. Calculate the Froude Number for a flow of 77,000 GPM. Assume (n = 0.025).

a.
0.12

b.
0.35

c.
0.55

d.
0.77

e.
1.07

2 points

Question 3

A rough concrete (n = 0.018) rectangular channel that has a bottom width of 3.0 feet and bottom slope of 1.31%. Calculate the normal depth for a flow of 68 cfs.

a.
1.5 ft.

b.
2.0 ft.

c.
2.5 ft.

d.
3.0 ft.

e.
3.5 ft.

Expert Solution

Ally Wells answered 11 months ago

Hydraulic engineering: A trapezoidal channel that has a 15 foot bottom width, Manning’s roughness coefficient of...

Hydraulic engineering: A trapezoidal channel that has a 15 foot bottom width, Manning’s roughness coefficient of 0.033, bed slope of 0.0021 ft/ft, symmetrical side slopes of 4H:1V (s = 4), and conveys 250 cfs. It is dammed up to a depth of 4 feet. How far back upstream will it take for the M1 curve to reach normal depth? a. 1,430 ft. b. 1,894 ft. c. 2,302 ft. d. 2,934 ft. e. 3,486 ft.

A trapezoidal channel has a bottom width of 3.25 m and sides with a slope of...

A trapezoidal channel has a bottom width of 3.25 m and sides with a slope of 1 vertical to 1.5 horizontal. The slope of the bed is 1 in 2000 and the depth of water is 1.2 m. a) Using the Manning Formula with n = 0.025, calculate the velocity and the discharge rate of the flow. b) Calculate the Chezy number for the channel and use that to re- calculate the velocity and the discharge rate of the flow....

A trapezoidal earthen channel that is straight and in good condition with a bottom width of...

A trapezoidal earthen channel that is straight and in good condition with a bottom width of 5.0 ft with side slopes on the left side of 2H to 1V and on the right side of 3H to 1V (two different side slopes) carries a discharge of 200 cfs for a 15-year design storm. The channel slope is 0.001 ft/ft. Determine the following: a) Normal Depth b) Critical Depth c) Critical Slope d) Froude number f) What is the flow type?

A trapezoidal channel has size slopes of 3:1 (H:V), a bottom width of 22 feet, a...

A trapezoidal channel has size slopes of 3:1 (H:V), a bottom width of 22 feet, a longitudinal slope of 0.0003, a Manning’s roughness coefficient of 0.023, and carries a flow rate of 340 cfs. a) Calculate the normal depth in this channel. b) Calculate the normal specific energy. c) Calculate the Froude number. State the classification of flow. d) State how the critical depth will compare to the normal depth and why.

Compute the wet area, wet perimeter, hydraulic radius and hydraulic depth for the trapezoidal channel section...

Compute the wet area, wet perimeter, hydraulic radius and hydraulic depth for the trapezoidal channel section with the following data: water depth = 5.5 ft, bottom width = 25 ft and side slopes 1:2.

For a trapezoidal-shaped, concrete-finished gravel bottom channel along a 0.5% slope, with a bottom width of...

For a trapezoidal-shaped, concrete-finished gravel bottom channel along a 0.5% slope, with a bottom width of 8 feet, a top width of 32 feet, and side slopes of 4:1, calculate: a. the channel’s full capacity discharge, b. velocity at full capacity discharge, and c. discharge and velocity when stream flow is 0.5 feet from the top of the channel.

A trapezoidal channel that has a 15 foot bottom width, Manning’s roughness coefficient of 0.033, bed...

A trapezoidal channel that has a 15 foot bottom width, Manning’s roughness coefficient of 0.033, bed slope of 0.0021 ft/ft, symmetrical side slopes of 4H:1V (s = 4), and conveys 250 cfs. It is dammed up to a depth of 4 feet. How far back upstream will it take for the M1 curve to reach normal depth? a. 1,430 ft. b. 1,894 ft. c. 2,302 ft. d. 2,934 ft. e. 3,486 ft.

A trapezoidal channel carrying 280 cfs has a bottom width of 12 ft, side slope of...

A trapezoidal channel carrying 280 cfs has a bottom width of 12 ft, side slope of 2 and a longitudinal bottom slope of 0.001. The critical depth is 2.25 ft and the normal depth is 2.78. The flow depth at the downstream end of this channel is 3.12 ft. Determine which of the statements below is correct. Select one: a. The flow depth decreases in the flow direction. b. None of the above. c. A flow depth of 2.55 ft...

B. A trapezoidal channel with a bottom width of 4 m and side slopes 4H: 1V...

B. A trapezoidal channel with a bottom width of 4 m and side slopes 4H: 1V carries a discharge of 30 m3 /s. The channel has bed slope= 0.1 % and manning roughness coefficient = 0.015. Determine the following: i. the minimum specific energy ii. the normal depth iii. the critical slope iv. state of the flow in the channel

A trapezoidal channel having bottom width 6m ,side slopes 2 horizontal to 1 vertical ,Mannings n=...

A trapezoidal channel having bottom width 6m ,side slopes 2 horizontal to 1 vertical ,Mannings n= 0.025 and bottom slope 0.016 ,carries a discharge of 10 m3/sec . Compute the back water profile created by the dam which backs up the water to a depth of 2.0 m immediately behind the dam ((Direct method if it is possible))

Question