1.What is the pressure drop for water at 60 degrees F flowing through 12in schedule 40 pipe at a rate of 500gal/min over a distance of 100 feet.
2.Three parallel line loads of 500kN/m are applied at ground level in a straight line 4.0m apart. Determine the increase in vertical stress at 2.0m below ground level beneath the middle load. Assume that the soil satisfies Boussinesq's assumptions.
3.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 with a mean of 1.5 million gallons with a c.o.v. of 10%.
What is the probability of a water shortage in this city over the next month?