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an embankment for a highway 30m wide & 1.5m in a compacted thickness is to be constructed from a sandy trucked from a borrow pit. the water contenet of the sandy soil in the borrow pit is 15%& its void ratio is 0.69.The specification requires the embankment be compacted to a dry unit weight of 18KN/m3.Determine for 1KM length of embankment,the following:
a.the weight of sandy soil from the borrow pit required to construct the embankmentb.the number of 10.0m3 truckloads of sandy soil required for the constructionc.the weight of water per truck load of sandy soild.the degree of saturation of the sandy soil in situ
Determine how many years from now the consumption will reach its design capacity with current usage rates if the community has a declining growth rate.
A horizontal curve was designed for a four-lane highway for adequate SSD. Lane widths are 12 feet, and the superelevation is 0.06 and was set assuming maximum fx.
Consider the design of wastewater treatment plant for a community wiyh average daily and peak hourly wastewater design flows of 2.0 mgd. The raw sewage has an average of 230 mg/l BOD5 and 260 mg/l of suspended solids.
Assuming constant acceleration, determine how long the train blocked the crossing. Dis- regard the width of the crossing.
Water flows through a horizotal 45 deg reducing bend with a 36 inch. diameter upstream and a 24 inch diameter downstream, at the rate of 20 cfs under a pressure of 15 psi at the upstream end of the bend. Neglecting head loss in the bend, calculate..
A distance of 1000 feet is to be taped in a manner to ensure a standard deviation smaller than ±0.06 feet. What must be the standard deviation per 100-ft tape length to achieve the desired precision?
Whether the wall has adequate sliding resistance and whether the wall is safe against over-turning
Describe a dynamic programming algorithm to find an independent set of T such that the sum of numbers of nodes in the set is the largest among all possible independent sets of T.
A runs slope a distance of 156.777 m from one point to another point at a rate of +1.5%. What is the corresponding horizontal distance between the points?
An industrial plant presently discharges a chemical (W=2000 * 106 gr/yr) to the lake. In addition, the inflow stream also contains the same chemical at a concentration of 15 mg/L. Note that the volumetric inflow and outflow are equal.
What is the velocity head expressed in atmospheres for a rapid filter operated at a surface loading rate of 475 m/d when the local porosity is 0.40?
A company that manufactures regenerative thermal oxidizers made an investment 10 years ago that is now worth $1,300,000. How much was the initial investment at an interest rate of 15% per year (a) simple interest and (b) compound interest?
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