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1.You are constructing an embankment of 250,000 cubic yards of material. The material has a shrink percentage of 18%. How many bank cubic yards will be required to complete this embankment?
2.A soil borrow material in its natural state in the ground has a unit weight of 85 pfc. When a sample of this soil is dried in the laboratory, its dry unit weight is 72 pfc. What is the water content of this borrow material.
3.The bottom of a rectangular flume is 5m above reference level. The depth of the water in the flume is 3m. The average velocity is 1.7m/s. Compute the hydraulic energy at the surface of the water and at the bottom of the flume.
A boad initially stationary at water,fires a shell in i direction,The shell's air speed =822 m/s.The shell was in the gu8n for .16s, and the force exerted on the shell decrease linearly fromthe initial force to zero over the firing interval.
a rectangular clarifier with a lengthwidth ratio of 31 receives a flow of 850m3day. the clarifiers depth is 4.0m and
compressed nitrogen (140 lbm) is stored in a spherical tank of diameter D = 2.5 ft @ temp. of 77 degrees Fahrenheit . what is the pressure inside the tank? if the max allowable stress is 30 ksi, find the minimum theoretical wall thickness.
The aluminum end and the copper end are maintained at temperatures of 50°C and 260°C, respectively. The thermal conductivities of aluminum and copper are 205 and 385 W/m · K, respectively. The temperature of the aluminum-copper junction in the rod..
A structural tension member of 10 ft. long with a square cross-section is subjected to a load of 120,000 lb. There is a choice between an aluminum alloy and structural steel, with the following information given for each.
Calculate the pH of a buffer solution prepared by mixing 8.5g KH2PO4 with 43.5g K2HPO4 in 1 liter of water (this is actually the composition of the dilution water used in a BOD test. Follow the same procedures you have been using for previous acid/..
A well installed into a confined aquifer with a porosity of 0.3 and saturated thickness of 80 ft. The gravel pack requires a well screen slot width of 0.025 inches. The hydraulic conductivity of the aquifer is 60 ft/d.
if you had a choice of three kinds of aggregate--a sandstone,a crushed basalt,and a quartizite,you may select the basalt.Give one possible characteristic or property of sanstone and of the quartzite that made you decide not to select it for your c..
The vehicle has a frontal cross -sectional area of 1.9 m^2. The roadway has a straight alignment and a badly patched and broken asphalt surface. assume a drag coefficient of 0.3 and p of air of 1.29 kg/m^3
A rigid tank contains 1 kg of H20 at 100 kPa, x=0.1. Given that the tank can withstand a maximum internal pressure of 2 MPa, determine (a)the maximum temperature to which the steam in the tank can be heated,
Stream with a specific weight of 38 N/m^3 is flowing with a velocity of 35 m/s through a circular pipe with f=0.0154. What is the shear stress at the pipe wall
A rapid sand filter has a loading rate of 8.00 m/h, surface dimension of 10m x 8m, an effective filtration rate of 7.70 m/h, and a production efficiency of 96 percent.
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