You are designing a storm drain for a new parking lot. The topographic conditions at the site restrict the pipe slope to be approximately 0.013 (with up to 10 percent variation allowed). The storm drain needs to convey a design flowrate of 17 cfs. You are considering use of concrete pipe (n=0.013) and corrugated steel pipe (n = 0.022). (a) Which size pipe and what slope would you specify in each case? Make your selection so the pipe is full, or nearly full, at the design flowrate. Available pipe diameters are those listed next to tic marks on the "circular channel - low Q cleaned up" that is posted at NYU Brightspace. Use this nomograph, NOT the one that is in the Powerpoint lesson because it has more resolution at lower flowrates. (b) What is the maximum flowrate (when full) that each of the pipes you specified in (a) can convey? (c) What is the velocity of the water when flowing full in each case?

To provide safety against piping failure, with a factor of safety of 5, what should be the maximum permissible exit gradient for soil with specific gravity of 2.5 and porosity of 035? A) 0.155 B 0.167 (c) 0.195 D 0.213

Please help. Show complete solution and avoid truncation. Thank you A steep rectangular channel is to carry flow rate of 1.90 m3/s wirh a slope of 0.01 and roughness coefficient of 0.011, for a minimum area of the material to use, compute: Depth if the channel in m Width of the channel in m Area of the steel material to be used if the channel is 3m

What is the flowing-full capacity and velocity for a 500-mm-diameter sewer (n =0.013) on a slope of 0.0042 m/m? Determine the actual flow and velocity for a depth of flow equalto 300 mm.

4. A section of water line includes 300 m of 150 mm diameter pipe with a roughness coefficient (Ch) of 130 and 600 m of 200 mm diameter pipe with a roughness coefficient of 110. The pipe also includes 2 45° elbows and a swing-type check valve. What is the equivalent length in terms of the 200 mm diameter pipe with a roughness of Ch = 110?

Draw a well labeled diagram of Bubble centering with a three-screw leveling head.

10m

Problem 1 You are to design a 800’ long sewer pipe that is to be placed in a trench. Prepare an Excel table showing the design elevations every 100 feet. Use stationing of 0+00 for the beginning, and 8+00 for the end. Place the pipe at a gravity drainage slope of -2.5% towards station 8+00. The invert elevation of the pipe at 0+00 is 6375.00’. The pipe has an outside diameter of 1’ and a wall thickness of 1”. Your design needs to include the following:a) List the elevations for the top of the pipe for the plus stations (0+00, 1+00, 2+00, 3+00, 4+00, 5+00, 6+00, 7+00, and 8+00) *.b) Calculate the invert elevation for the pipe at station 8+00 *Note: Elevations for the top of the pipe are used to place leveling rods at those stations and control the depth of the pipe during construction (since the bottom of the pipe is then inaccessible).Hint1: Make a sketch.Hint2: A 3% gravity slope means -3’ per 100’ (as in “three per cent”). “3%” is not an angle.Hint3: For short distances (i.e., pipe…

Using the Manning nomograph and assuming n=0.013, determine the following: (a) An 800 mm diameter sanitary sewer is built on a slope of 0.2 percent. What is the fullflow discharge capacity of the sewer and what is the flow velocity? (b) What diameter pipe is needed to carry a peak flow of 200 liters/s on a grade of 0.007 ? (c) A 300 mm diameter sewer is built at a grade of 2 percent. What is the depth of sewage flowing in the pipe when it carries a flow of 50 liters/s? What is the velocity?   USE MANNING MONOGRAPH, NOT HAZEN WILLIAMS

3. A 30in dia. concrete storm sewer pipe must a carry a flow rate of 9cfs at a minimum velocity of 2.5ft/s, find the required slope and water depth.