Hydraulics and Fluid Mechanics in ME
Stanton diagram is a

semi-log plot of friction factor against relative roughness
semi-log plot of friction factor against Reynolds number
log-log plot of friction factor against Reynolds number
log-log plot of relative roughness against Reynolds number

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Hydraulics and Fluid Mechanics in ME
The total head of a liquid particle in motion is equal to

Kinetic head - (pressure head + potential head)
Pressure head - (kinetic head + potential head)
Pressure head + kinetic head + potential head
Potential head - (pressure head + kinetic head)

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