Hydraulics and Fluid Mechanics in ME
In case of flow through parallel pipes,

The total discharge is equal to the sum of discharges in the various pipes
The total head loss is the sum of head losses in the various pipes
The head loss for all the pipes is same
Both (A) and (B)

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Hydraulics and Fluid Mechanics in ME
In open channels, the specific energy is the

Total energy per unit discharge
Kinetic energy plotted above the free surface of water
Total energy measured above the horizontal datum
Total energy measured with respect to the datum passing through the bottom of the channel

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