The hydraulic gradient line (H.G.L)represents the sum of_________________?
Correct answer: B. Pressure head + datum head
- A. Pressure head + velocity head
- B. Pressure head + datum head
- C. Velocity head
- D. Water surface
Explanation
The hydraulic gradient line represents total piezometric head, which is elevation head plus pressure head. Velocity head is added only when determining the total energy line.
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