Hydraulics and Fluid Mechanics in ME
In series-pipe problems

a trial solution is not necessary
the head loss is same through each pipe
the discharge is same through each pipe
the discharge through each pipe is added to obtain total discharge

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Hydraulics and Fluid Mechanics in ME
Cavitation will begin when

pressure becomes more than critical pressure
the pressure at any location reaches an absolute pressure equal to the saturated vapour pressure of the liquid
flow is increased
pressure is increased

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