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1.A bridge has cylindrical piers 1 m in diameter and spaced 15 m apart. Downstream of the bridge where the flow disturbance from the piers is no longer present, the flow depth is 2.9 m and the mean velocity is 2.5 m/s. (a) Calculate the depth of flow upstream of the bridge assuming that the pier coefficient of drag is 1.2. Drag Force CD ? Af (V1^2)/2 CD=1.2 (b) Determine the head loss caused by the piers.
2.A tensile test was performed on a metal specimen having a circular cross section with a diameter of 0.50 inch. The gage length is 2 inches. For a load of 13.5 kips, the elongation was 4.66 x 10-3 inches. If the load is assumed to be within the linear elastic range of the material, determine the modulus of elasticity.
find the maximum allowable force P if the maximum allowable bearing stress on 6 pins holding 2plates together is σ all=10 MPa, and the maximum allowable shear stress is τ all =25 MPa
A drilling engineer wishes to support pipes of length L on blocks so that the magnitude of the bending moment in the pipes directly over the supports is equal to the magnitude of the bending moment at the center of the pipes.
Explain what happens to the following quantities when a Rankine cycle is modified to include a reheat
A fully loaded, ocean going container ship is just stable about its longitudinal axis (roll). The ship has a total weight of 155,000 tons, length = 1,600 feet and a beam = 150 feet (assume that it is the shape of a rectangular box). Calculate the ..
Estimate the diameter of the tower, based on bottom operating conditions. Assume that the density and viscosity of the bottom liquid are the same as tose for pure water. Make other appropriate assumptions as needed.
the recommended threshhold limit value ( TLV-ACGIH) air concentration for occupational exposure to water-insoluble hexavalent chromium Cr (VI) is 0.01 mg/M^3. this concentration is based on an assumption that the individual is generally healthy an..
What are the public safety implications of a flaw in a computer chip that is going to used to control a variety of instruments
The settling velocity of alum floc in a sedimentation basin is approximately 0.0014 fps. Calculate the equivalent overflow rate in gpd/ft2. What is the minimum detention time in hours to settle out the alum floc in an ideal basin with a depth of 1..
A moist soil sample wights 346g.After drying at 105 degree celsius it then wights 284g.the specific gravity of the mass and of the soil is 1.86 and 2.70.
What is the full capacity of the sewer. At what depths of flow in the pipe are the velocities of flow equal to 0.6 m/s. Assume Mannings constant n = 0.013.
In an oedometer test, the void ratio of a clay sample changed from 1.62 to 1.41 as the vertical effective stress imposed on the sample was increased from 100 kPa to 200 kPa.
A dam is inclined at an angle of 30o from thevertical and has the shape of an isosceles trapezoid 100 ft wide atthe top and 50 feet wide at the bottom and with a slant height of70 ft. Find the hydrostatic force on the dam when it is full ofwater?
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