Q-3 A standpipe with an inside diameter of 108 in. contains water, which has a weight density of 62.4
l(b)/(f)t^(3). The column of water stands 30
ftabove an outlet pipe, which has an outside diameter of
8.625in. and an inside diameter of
8.065in. (a) Determine the longitudinal and hoop stresses in the outlet pipe at B. (b) If the maximum hoop stress in the standpipe at point A must be limited to
2,000\psi , determine the minimum wall thickness that can be used for the standpipe.
