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A horizontal curve on a two-lane highway (12-ft lanes) has PC at station 123+80 and PT at station 129+60. The central angle is 35 degrees, the super elevation is 0.08, and 20.6 is the cleared (for sight distance) from the inside edge of the innermost lane. Determine a maximum safe speed to the nearest 5 mph.
An existing high-way railway at-grade crossing is being redesigned as a grade seperated to improve traffic operations. the railway must remain at the same elevation. the highway is being reconstructed to travel under the railway.
If the channel is overtopped for 2 years in a row, renovation cost will increase too much. What is the probability that the channel will be overtopped for only 2 years in a row in a 4 year period
State the basic difference between the general method of slices and the bishop method of slices. b.)State the basic difference between the bishop and fellenius method of slices
A simple highway curve is planned to connect two horizontal tangents that intersect at sta. 2500 + 00.00 at an external angle of 52 degrees. For a design speed of 60 mi/hr and a curve radius of about 1.25 times the minimum allowable
Treatment plant was designed for 9 MGD. It is currently processing 13 MGD. Your task is to assess the expected treatment performance of the primary clarifiers. There are two clarifiers 45 feet in diameter.
he oxygen is compressed from 95 kPa, 20 C to 300 kPa, isothermally. Determine the heat transfer assuming (a) the process is reversible, (b) the process is irreversible such that 20% more work is required than the reversible case.
Assuming unit surface area, find the conductive heat loss through the furnace wall and the temperature at the interface of the fire clay and red brick.
Calculate the equilibrium concentration of dissolved oxygen in 15oC water at 1 atm, and again at 2000 m elevation.
At equilibrium, the air space has a volume of 1 L, a total pressure of 1 atm, and a temperature of 298 K. The i mg of formaldehyde (HCHO, MW = 30 g/mol) is injected through the septum into the water.
Two soil samples, each having a void ratio of 0.76 and density of 2.65 grains have degrees of saturation, respectively, 85% and 100%. Determine the overall specific weight of each of the samples.
Compute the volume of a waste sludge with 96% water content containing 1000 lb of dry solids. If the moisture content is reduced to 92%, what is the sludge volume
After initial mixing, the DO concentration in the river is 9.5mg/L and the temperature is 15ºC. If the ultimate BOD of the mixed river water is 30mg/L,
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