Figure P5.115 shows a pump testing setup. Water is drawn
from a sump and pumped through a pipe containing a valve. The
water is discharged into a catch tank sitting on a scale. During a
test run, 800 lb of water is collected in the catch tank in 15 s. The
pump power input to the fluid during this period is 700 ft ∙ lb/s.
Calculate the water velocity in the pipe and the mechanical energy
loss (ft ∙ lb/lbm) in the pipe and valve.