The hydraulic grade line equals which combination of heads?

Prepare for the ADEQ Water Treatment Grade 4 Test. Study with flashcards and multiple-choice questions, with each question offering hints and explanations. Ace your exam!

Multiple Choice

The hydraulic grade line equals which combination of heads?

Explanation:
The hydraulic grade line represents the potential energy in the flow coming from pressure and elevation. In fluid head terms, that's pressure head plus elevation head (p/ρg + z). The velocity head v^2/(2g) is not included in the hydraulic grade line; it is only part of the energy grade line, which sums pressure head, elevation head, and velocity head. So the hydraulic grade line equals pressure head plus elevation head.

The hydraulic grade line represents the potential energy in the flow coming from pressure and elevation. In fluid head terms, that's pressure head plus elevation head (p/ρg + z). The velocity head v^2/(2g) is not included in the hydraulic grade line; it is only part of the energy grade line, which sums pressure head, elevation head, and velocity head. So the hydraulic grade line equals pressure head plus elevation head.

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