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An undisturbed soil sample has a total unit weight of 19.4 kN/m3, a dry unit weight of 16.9 kN/m3, and a specific gravity of soil solids (Gs) of 2.69. Determine(a) Void ratio (e)(b) Porosity (n)(c) Degree of saturation (S in %)
If the sample could be saturated without changing its porosity, calculate the amount of water (in kN) to be added per cubic meter of soil to achieve 100% saturation.
Wastewater is discharged into an aquifer. This wastewater contains 0.1 ppm atrazine (a common herbicide). The MCL of atrazine is 5 ppb, the density is 1.19 g/mL and the solubility is 50 ppm. 500 ft away from the plant effluent there is a permeable..
You are a Project Manager on site where work for 3K.m. long Tunnel has been undertaken. The site is remote and takes about 2 days travel to nearest town. Supervisors, Technicians & Skilled Workers are engaged in dangerous / hazardous work.
Oil of a specific gravity of 0.75 is flowing through a 6-in pipe under a pressure of 15 psi. If the total energy relative to the datumplate is 8.0 ft below the center of the pipe is 58.6 ft, determine the flow rate of the oil.
What are the major policy aspects of the Clean Water Act? What is the history and statutory basis for federal regulation of wetlands? What are the national permits? What are the origin and significance of the no net loss policy?
If the dry-rodded unit weight of an aggregate is 105 lb/ft3 (1680 kg/m3) and its specific gravity is 2.65, determine the void content.
Axis of the hole is perpendicular to VP. Draw elevation, plan and development of the lateral surfaces of the pyramid.
A small chunk of the original sample had a wet weight of 140.9 grams and weighed 85.2 grams after drying. Compute the water content, using the correct number of significant figures.
For satisfactory operation, the static pressure at the pump inlet must not be lower than -6 m of water gage. Determine the smallest standard commercial pipe that will give the required performance.
The point of intersection of the tangents is located at station (948+67.32). If the design speed of the highway is 60mi/h, determine both the point of tangent and the deflection angles to whole stations for laying out the curve. Select appropriate..
determine the power that must be supplied to the motor at this instant. The motor has an efficiency of 76 %. Neglect the mass of the pulleys and cables.
What difference does the tightening of bolt in the friction grip joint make to the load at first slip and the failure load.
Suppose that the distance from the lake outlet to the withdrawal cannot be more than 20 mi. What should be the new volume of the lake?
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