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A Class I rural highway segment of 10 miles in level terrain has a base free-flow speed (BFFS) of 65 mph. The cross section has 12-ft lanes and 6-ft clear shoulders on both sides of the road. There are an average of 20 access points per mile along the segment and 20% of the segment consists of "no-passing" zones. Current traffic on the facility is 800 vph, with 10% trucks and no RVs. The directional distribution of traffic is 70/30, and the PHF is 0.87. Using a directional analysis, what is the level of service expected in each direction on this segment?
A lagoon with volume 1200 m^3 has been receiving a steady flow of a conservative waste at a rate of 100m^3/day for a long enough time to assume that steady-state conditions apply
If the initial concentration of parathion in the runoff from the agricultural field is 3 ppb, the velocity of the river is 2.3 miles/day, how many days will the fish hatchery have to contain river water in holding tanks until the parathion concent..
An external moment of magnitude 110 N-m is applied in the counter clockwise direction as shown. A frictional moment of magnitude 10 N-m resists the rotation. The specific weight of the material is 250 lbs / ft3.
The pipe contains two 6 in steel elbows, two fully open gate valves, a fully open 90o angle valve, and a swing check valve. If the discharge end of the pipe is located 20 ft higher than the entrance, what is the pressure difference between the two..
a 1 meter diameter cylindrical mass is connected to a 2 meter wide rectangular gate. the gate is to open when the water level drops below 2.5 meters. Determine the required value of the mass of the cylinder in kgs.
Find the uniform flow depth (in feet) of a concrete trapezoidal channel with a bottom width of 30 ft. and side slopes of 2:1. The channel is laid at a slope of 0.05% and carries a design discharge of 1000 cfs.
What are minerals? Sketch different types of mineral crystal forms and list different types of rock forming minerals. Describe with examples the importance of mineral identification in engineering applications.
A continuous geogrid having a reinforcement coverage ratio equal to 100 percent. A continuous metallic grid consisting of W4 bars having a diameter equal to 5.7 mm, a distance between longitudinal bars equal to 150 mm, a distance between transvers..
A contractor has both a 3-cy and a 5-cy shovel in the equipment fleet. Select the minimum-size shovel that will excavate 400,000 bcy of common earth in a minimum of 130 working days of 8 hr each.
Assume that during the analyze stage an obvious solution is discovered. Should that solution be immediately implemented and the remaining steps of DMAIC abandoned?
A 30-ft-high, 1-ft-diameter pipe is welded to the top of a cubic container 13 ft * 3 ft * 3 ft2. The container and pipe are filled with water at 20°C. Determine the weight of the water and the pressure forces on the bottom and sides of the contain..
A tensile test was performed on a metal specimen having a circular cross section with a diameter of 0.50 inch. The gage length is 2 inches. For a load of 13.5 kips, the elongation was 4.66 x 10-3 inches.
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