1.what is a curve?how many types of curves?what are theirsolutions?illustrate with examples.
2.A wastewater treatment plant has two primary clarifiers, each 20m in diameter with a 2-m side-water depth. the effluent weirs are inboard channels set on a diameter of 18m. for a flow of 12900m^3/d, calculate the overflow rate, detention time,and weir loading.
3.A fine sand has a hydraulic condutivity of 3.5 x 10^-5 m/s a hydraulic gradient of 0.00141, and a porosity of 45 percent. Detrmine the Darcy velocity and the averge linear velocity