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Hydraulic gradient line takes into consideration potential and kinetic heads only potential and pressure heads only kinetic a
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Answer #1

Potential & pressure head only.

HGL is obtained by plotting piezometric head at various points along the axis of the pipe.
Hp = P ⁄ γ + z
where Hp is the piezometric head, P ⁄ γ is the pressure head and z is the potential head.

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