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A pipe of 100 mm diameter is fitted horizontally to a water tank. The pipe suddenly expands to 200 mm diameter at the end of first 10 m of its length. For the remaining 15 m of its length, the diameter remains uniform at 200 mm. The height of water level in the tank is 5 m above the axis of the pipe. Determine the velocity of flow at the exit of the pipeline considering all losses. Assume Darcy's frictional coefficient f= 0.01 for the two sections of the pipe.
Estimate the effective friction angle for the sand (assume c' = 0). Calculate the sand's shear strength (τf) on a horizontal plane at depths of the 20 ft and 50 ft.
during the next month, the amount of water available for a city is lognormally distributed with a mean of 1 million gallons and a c.o.v. of 40%, where as the total demand is expected to follow a lognormal distribution
A proposed square footing carrying a total load of 900 kips is to be constructed on a uniform thick deposit of cohesionless soil. The soil's unit weight is 135 pcf, and its angle of internal friction is 38 degrees
Two 8-kg blocks A and B resting on shelves are connected by a rod of negligible mass. Knowing that the magnitude of a horizontal force P applied at C is slowly increased from zero
A 3105 Aluminum alloy wire is to be drawn to give a 1-mm diameter wire having a yield strength of 20,000 PSI. assume that there is no friction in the wire drawing process
Given copper and PVC pipe segments analyze which pipe is morelikely to fail in the modes of Compression, Tension,Shear, Bending, and Buckling. Both pieces are the samesize.
A single strain gage is cemented to a solid 4-in diameter steel shaft at an angle B = 25 degrees with a line parallel to the axis of the shaft. Knowing that G = 11.6*10^6 psi
A galvanized (zinc-coated) steel sheet is found to uniformly corrode with an average current density of 1.4 X 10-7 A/cm2. How many years will it take to uniformly corrode a thickness of 0.030 mm of the zinc coating?
For maximum undercooling, calculate the size of the critical radius and the number of atoms in the critical nucleus when solid copper forms by nucleation.
A municipal drinking water treatment plant discovers that it has an unacceptably high level of the pesticide carbofuran and must develop a treatment technique to reduce the concentration to satisfy the relevant water quality standard.
The Big Bear town council has asked that you determine whether the discharge of the town's wastewater into the Salmon River will reduce the DO below the state standard of 5.00 mg/L at Little Bear, 5.79 km downstream.
You are the Chief Civil Engineer for the Enhanced Protein Production Plant on the planet Zog where the gravitational constant is 15 ft/s2. A protein storage tank has developed a structural problem and must be drained. There is a 6 inch diameter orifi..
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