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Civil Engineering PE

Category - Hydraulics - Closed

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An important law of fluid mechanics is the conservation of energy. Which of the following equations best describes this law?

Bernoulli Equation
Darcy-Weisbach Formula
Hazen-Williams Formula
None of the above

Explanation

Answer: A - Conservation of energy, an important fluid mechanics law, is best described by the Bernoulli Equation. The Bernoulli Equation is expressed as H₂ = H₁ - h_L, where:

H₁ = hydraulic head at an upstream point in a system
H₂ = hydraulic head at a downstream point in a system
h_L = head loss during the flow from point 1 to point 2

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