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Which of the following pair is incorrectly matched
1. Piezo metric Head: Sum of datum head and pressure head
2. Dynamic Head: Sum of datum head and velocity head
3. Stagnation Head: Sum of pressure head and velocity head
4. Total Head: Sum of piezo metric head and dynamic head

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Correct Answer - Option 2 : Dynamic Head: Sum of datum head and velocity head

Concept-

We have the energy equation,

\(\frac{P}{{\rho g}} + \;\frac{{{v^2}}}{{2g}} + Z = Constant\)

Where

\(\frac{P}{{\rho g}} =\) Pressure head or Static head

V/ 2g → Velocity head / Dynamic head / Kinetic head

Z = datum head

\(\frac{P}{{\rho g}} + \;\frac{{{v^2}}}{{2g}}\rightarrow\) Stagnation Head

\(\frac{P}{{\rho g}} + Z \to \) Peizo metric Head

Dynamic Head is the only velocity head so option b is incorrectly matched.

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