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Consider a high-rate sedimentation basin with tube settlers. The basin is 120 feet long and 30 feet wide. The length of the basin covered by tube settlers is 90 feet. The water depth is 15 feet. The length if the flow path in the tubes is 2 feet, the diameter of the tube is 2 inches. and the tubes are inclined at 60 degree angle.
1) Use recomended design criteria to choose a suitable surface overflow rate in gpm/ft^2.
2) Determin the allowable flow through the basin in million gallons per day (mgd).
3) Determin the flow velocity within the tubes in feet per minute (fpm)
4) Determin the detention time within the tubes in minutes.
A car travels along a circular path such that its speed is increased by a_t=0.5e^t(m/s^2) ,where t is in seconds. The radius of curvature of the path is 30m. Determine the magnitude of its velocity after the car has traveled s = 18m starting from r..
Isolated on a high plateau, the Los Alamos National Laboratory seemed an ideal place to store a bomb factory's deadly debris. But the heavily fractured mountains haven't contained the waste, some of which has trickled down hundreds of feet to the edg..
couplings , each with a loss coefficient of k=0.15, are located every 10 m along thehose. the nozzle outlet diamter is d= 25 mm, its minor losscoefficient is k=0.02 based on outlet velocity
Calculate the area of the reinforcement required( As) in a singly reinforced rectangular beam required to carry an ultimate factored bending moment ( Mu = 140 Kip-ft). Use( f'c=3,000 psi) and( fy=40,000 psi).
How we can find the applicaition of internal force in civil? mean an appication for the internal force in the civil
A rectangular tube has an outside dimensions that are 2in wide and 4in deep and a wall thickness of 0.25in. The tube is acted on by a bending moment of 12,000lb-in. A.)Determine the maximum tensile and compressive bending stresses.
If concrete compression test fails, should Schmidt hammer test be adopted as an alternative test to prove the concrete strength?
The PVC pipe weighs 36.1 pounds per foot of length. Determine the minimum uniform thickness (in) of concrete (150 lbs/ft^3) required around the exterior of the PVC pipe to prevent the empty pipe from floating.
A closed box with horizontal base 6m x 6m and height of 2m is half-filled with water and is accelerated Ax=4.9 m/sec^2 and Ay=-2.4 m/sec. find the pressure at the forward and rear corners along the bottom.
All but 5 of the 60 years experienced one or more 30-min intensities equaling or exceeding the 2.5 in/hr value. Use the Kimball formula to determine the return period of this intensity using
A wastewater treatment plant must disinfect its effluent before discharging the waste water to a near-by stream. The wastewater contains 4.5x10^5 fecal coliform colony-forming units (CFU) per liter.
A .90% Carbon hypereutectoid plain carbon steel is slowly cooled from 900 degrees C to just slighty above 723 degrees C calculate the weight percent proeutectoid cementite and weight percent austenite present in the steel.
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