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A reinforced concrete beam having the cross section shown is on a simple span of 28ft. It carries uniform service loads of 3.60 kips/ft live load and 2.20 kips/ft dead load. Check the adequacy of th
The Three Gorges Dam in China will be the world's biggest when complete. When did the construction start
If a SS concrete beam, prestressed with a force of 2500 kn,effective span = 10m. It carries a load of 40 kN/m, the central dip of the cable profile should be
A loose uniform sand with rounded grains has effective grain size of 0.05 cm. What will be the Coefficient of permeablity of sand
The diffrence b/n the sum of angles of a plane triangle and the sum of angles of sph triangle is one second. when the triangle on the earth surface has an area of about
Average pore water pressure in fully saturated clay specimien, which was subjected to a pressure of 20N/cm^2 initially, was measured to be 7N/cm^2 after a period of time.
A rigid 1ft^3 vessel contains R-134a originally at -20F and 27.7% quality. The refrigerant is then heated until its temperature is 100F. Calculate the heat transfer required to do this, in Btu.
A cylinder with a moveable piston holds .20 lb of hydrogen initially in a volume of 1 cu ft at a tem-perature of 1300 F. Then the volume is expanded to 2.5 cu ft while the gas pressure remains const
A landfill is located 500 km from a river whose surface elevation is 40 m lower than the ground elevation at the landfill. After several years it is discovered that leachate from the landfill, with
The pressure at the end of the bend is 78 pounds per square inch. Determine the horizontal components of the forces necessary to hold the bend in place.
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
The US EPA has published the following data for the release to the Florida environment of sulfuric acid (H2SO4 ), the most widely used industrial chemical (in millions of pounds).
The United States Environmental Protection Agency (EPA) has published the following data for municipal solid waste generation (in millions of tons). Estimate a value of MSW generation in the year 2
The mean score of students on an aptitude test is 72 points with a standard deviation of 8 points. What is the probability that two groups of students, consisting of 28 and 36 students respectively,
The cycle has a thermal efficiency of 35%, and steam changes from saturated vapor at 300 C during the heat addition process. If the mass flow rate of the steam is 2kg/s, determine the net power (kw)
A ssume that one half of the energy incident on the collector goes to this reservoir, which, in turn, serves as a source for a heat engine. If the temperature of the atmosphere is 70 F,
Estimate the power in watts that can be produced by the turbine. Hint: In a time interval Dt,the amount of mass that flows through the rotor is Dm=mDt ,and the corresponding amount of kinetic energy
what is the second year book value for equipment with an initial cost of $11,000, a salvage value of 1,000 and a recovery period of 5 yrs for A. straight line depreciation. B. Double declining balan
$25,000 is deposited in a savings account that pays 10% interest, compounded monthly. Equal annual withdrawls are to be made from the account, beginning one year from now and countinuing forever.
The company makes no deposits during the subsequent 10 years. If the bank pays 10% interest, what is the amount in the account at the end of 20 years
Determine the centroid for the region bounded by the x-axis, the curve y=x^3, and the line x=3
How many days would they need to use the equipment each year to justify purchasing the equipment? To purchase equipmet/ Buy at $60,000, Operation and maintanence is $120/day, life is 5 yrs and salva
a store charges 1.25 % interest per month in credit purchases. This is equivalent to: what nominal annual interest rate, effective annual interest rate, and effective monthly interest rate
differential leveling between benchmarks A,B,C,D, and A gives elevation differences(m) of -15.632, 32.458, 38.214, and -55.025, and distances(km) of 4,6,5, and 3 respectively.
Dust is removed from the airstream of a municipal incinerator by four dust collectors operating in parallel, each handling 1/4 of the total airflow of 200 m3/min. The airstream contains 10 g/m3 of s