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Suppose a drainage basin has an area of 288 acres with a CN=55(Runoff Coef. of 0.30). Determine the peak discharge (in cfs) that would result from a 6.0in., 24-hr assuming there are no ponds and swampy areas. Give an answer using the TR-55 and Rational Method. Assume a time of concentration of 0.50 hr, rainfall intensity of 4.0 in/hr and a Type II rainfall.
One of the wells pumps at a rate of 1,240 m^3/ day. The second well pumps at 850 m^3 / day. If the aquifer has a T= 2000m^2 / day and a storage coefficient of 0.0004, when would the wells start interfering each other
A moist soil sample weighing 22.2 N has a moisture content of 20%. How man N of water must be added to the sample to increase the moisture content to 30%
The gases are expanded to 140 kPa with a reversible adiabatic process. Calculate the work done by the gases, assuming they can be approximated by air with constant specific heats.
The SO2 emission from a fixed source is 25 g/s. The effective stack height is 60 m, the wind speed is 4 m/s at the top of the stack. Assuming class C stability, what is the expected ground level concentration 2 km downwind
The car was travelling on a 3% upgrade on a pavement with friction factor of 0.30. How much further would the car have skid if it did not strike the concrete barrier?
Consider two alternative water resource projects, A and B. Project A will cost $2,533,000 and will return $1,000,000 at the end of 5 years and $4,000,000 at the end of 10 years.
Draw a P-V diagram for pure component and label appropriate points such as superheated region, isothermal line, etc.
A civil engineering student contends that 60 mph is safe in a van because of the higher driver's eye height. If all other design inputs are standard, what must the driver's eye height in the van be for the student's claim to be valid
A level is set up midway between two wood stakes that are about 300 feet apart. The rod reading on Stake A is 9.65 ft and the reading on stake B is 4.23 ft. The level is then set up 6 feet in front of stake B.
Calculate the stress at failure of a concrete test cylinder with a measured diameter of 152.4 mm and a recorded load of 371,426N. Units of ksi.
A saturated sample of clay with an sl 20 has a natural water content of 32%. What would its dry volume be as a percentage of its original volume of Gs.= 2.67.
The four approach volumes per day at this intersection are 28,648, 23,856, 12,150, and 10,174. The crash totals for the last 3 years are 91, 96, and 87. What is the annual crash rate for this intersection
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