1.A 12-in diameter concrete culvert (n=0.013) flows half full and is constructed on a grade of 0.5 %. What would be the expected flow velocity?
2.A 5-m wide rectangular open channel lined with rubble masonry (n=0.025) and laid on a slope of 0.0004. If the depth of flow is 3 m, what is the rate of discharge (m3/s)
3.knowing that the coefficient of static friction between the collar and the rod is .35, determine the range of values of p for which equilibrium is maintained when 0=50deg and M=20Nm
4.Under what situation shall engineers use jacking at one end only and from both ends in prestressing work.