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You find a chlorine demand occurring in your drinking water distribution system (series of pipes that carry drinking water throughout a city), yet there is no increased chlorine demand in the water going through the treatment plant, nor in the water being pumped into the distribution system. What microbial mediated process do you suspect is occurring in the distribution system (pipes)?
A pump is to be used to draw seawater from the bay at an elevation of 0 to a reservoir at a desalination plant that has a water surface elevation of 255 feet. A 12-inch diameter DIP pipe (CHW = 120) which is 625 feet long connects the two bodies ..
A load of 14 tonnes is suspended at the end of a steel rope.If the load is subjected to a maximum acceleration/deceleration of2.5m/s2, when raised and lowered, calculate the diameter of therope needed to support the load. Assume the following:
Assume a saturated hydraulic conductivity of 0.8 in./hr, a porosity of 0.62, an initial moisture content of 0.28, and an average capillary suction of 7.2 in. The depression storage is 0.5 in.
determine the Allowable Stress Design (ASD) reference and adjusted design values for the following members and loading conditions. All members are No. 2 Hem-Fir and are fully braced to prevent lateral-torsional buckling.
Design a single cyclone (Swift Conventional) to handle 20,000cfm (at 250F and 1atm) of air contaminated with the particles : Particulate density =1200 kg/m^3 gas density = .90 kg/m^3
Your engineering consulting firm has been asked to determine the specific weight of an unknown material. You decide to use the concept of buoyancy to figure this out. So you weigh the material in both air and water.
it carries a uniform service load of 2450 lb/ft in addition to its own weight. material strengths are f'c=4000psi and fy=60000psi .assume a weight od 150 pcf for reinforced concrete.
Measurements of water-balance components have been made for a one-year period on a lake with an area of 4.4 km2 with the following results: P = 350 mm, Qsi = 2.33 x 107 m3, Qgi = 2.2 x 105 m3, Qgo = 0.6 x 105 m3, and Qso = .10 x 107 m3.
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
Two hemispheric shells are perfectly sealed together, and the internal pressure is reduced to 43 % of atmospheric pressure. The inner radius is 10.5 cm, and the outer radius is 10.75 cm. The seal is located halfway between the inner and outer radi..
What roles should technical experts like water engineers play in public policy decision-making issues, such as water demand management, water reuse and associate water quality issues
What is the tension in the cable connecting the boat to the pier Angle of spray 50 degrees off horizontal axis and is spraying toward the pier and pushing the boat away from the pier.
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