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A bi-directional road with +2% grade meets a +6% grade at sta. 10 + 30.00 and elevation 168.21 ft. For a design speed of 55 mi/h, find the minimum length of vertical curve that satisfies the AASHTO stopping sight-distance criterion. Also, calculate the elevation of the middle point of this curve.
The station of the PC is 20+00. Determine the station of the point where th superelevation runoff begins, the station whe the tangent runoff begins and the station where the curve is fully superelevated if the design superelevation is 6%
A 1500-foot subdivision street is to be constructed. The layout will be completed in three days; the fill will be brought in over the course of eight days; the compaction/grading will be completed in five days
Develop your knowledge of key principles relating to wastewater system design - Develop technical competence in problem formulation and solution in this discipline area.
Some experiments are being conducted in a laboratory in which theair temperature is 26o C and the atmosphericpressure is 14.6 psia. Determine the density of the air.Express your answers in slugs/ft3 andkg/m3.
An ethanol plant distills alcohol from corn. The distiller processes 2.0 t/h of feed containing 15% alcohol and 82% water; the rest is inert material. The bottoms (waste) produced is 85% of feed and contains 94% water, 3.5% alcohol, and 2.5% inert..
A truck is traveling down a road with a 3-percent grade at a speed of 55 mi/h when the brakes are applied. Knowing the coefficients of friction between the load and the flatbed trailer (us= 0.40) and (uk= 0.35)
The flow is designed using a rectangular coordinate system whose orgin is at the free surface midway between the walls. The x axis is normal to the walls, and the y axis points vertically downward.
A settling tank in a water treatment plant has an inflow of 2m3/min and a solids concentration of 2100 mg/L. The effluentfrom this settling tank goes to sand filters. Theconcentration of sludge coming out of the bottom (the underflow) is18,000 mg/L, ..
A cylinder with a 6.0 in., diameter 12.0 in. height is put under a compresive load of 150 kips. The modulus of elasticity for this specimen is 8000 ksi and Poisson's ratio is 0.35. calculate the final length and the final diameter of this specuman..
Two factories are manufacturing and supplying a single type of good to four warehouses. The factories can produce a1, and a2 units of the good each month, and the warehouses need b1, b2, b3, and b4 units each month
a pitot-static tube connected to a differential manometer measuring the fluid velocity in a pipe. what happens to the reading in the manometer, h, if the fluid velocity in the pipe is halved
Find the nominal flexural strength from part (d.) to the service capacity from part (c.). e.) Compute the ratio of the flexural strength from part (d) to the service capacity from part (c).
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