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A 200,000 cubic m highway embankment is to be constructed at dry density of 1.85 Mg/m^3 and optimum moisture content of 16% by compacting sandy silt taken from a borrow pit. The in-situ bulk density of the sandy silt is 1.92 Mg/m^3 and its average water content is 13%. determine:
a) the total volume of the sandy silt that must be removed from the borrow pit for construction of the embankment
b) the volume of water in m^3 that must be added to the sandy silt during construction of the embankkent. The specific gravity of the sandy silt is 2.70.
After drying in the oven, it weighs 4.44 kg. The relative density of the grains is 2.70. Determine the degree of saturation, void ratio, porosity and moisture content of the soil in its natural state.
The number of hours on each machine required to produce a product is given in the following table, along with the number of hours available per week on each type of machine. Assume that the company can sell everything it produces.
Calculate the mass of the green house gas and ozone depleting substance CFC-11 (chemical Formula = CCl3F) in the atmosphere. Use units of GtC (giga tonnes carbon). Production of this substance is now banned and mixing ratios are slowly decreasing wit..
Determine the volume of three identical activated sludge tanks following primary clarification to aerate 36,000 m cubed/d with a BOD concentration of 180 mg/l at a BOD loading of 560 g/m cubed*d.
if the rolling resistance is 1/100 of the weight of the car, determine the compression of each spring when the car is momentarily brought to rest spring 1 500kN/m spring 2 300kN/m and distance between springs and car 30m
A rectangular concrete channel 4m wide on a slope of 0.002 is designed to carry water(T = 10 C) at discharge rate 25m^3/s. Estimate the uniform flow depth for these conditions?
A distance is measured with an EDM having the instrument /reflector offset constant set to 0mm. The slope distance is reported as 2435.672 m with a zenith angle reading of 90 degrees 34 minutes and 05 seconds.
consider the unsteady flow of a fluid in the x direction through a control volume. the linear momentum of the fluid
Five million gallons per day (mgd) of a conservative substance,with concentration of 10 mg/L is released into a stream having anupstream flow of 10.0 mgd and a substance concentration of 3 mg/L.Assume complete mixing.
A single-scoop ice cream cone is a composite body made from a single scoop of ice cream placed into a cone. Assume that the scoop of ice cream is a sphere with radius r=1.45in that is placed into a 4.00in tall cone.
Assuming the kinetic and potential energy effects to be negligible, determine A) the mass flow rate in kg/s B) the temperature at the exit of the turbine, in C C) the power developed by the turbine in kW
Latent demand for highway travel is defined as the differencebetween the maximum numver of trips that could be made and thenumber of trips that are actually made. given a demandfunction:
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