The manometric efficiency of a centrifugal pump is given by

1
\(\frac{{{H_m}}}{{g{V_{w2}}{u_2}}}\)
2
\(\frac{{g{H_m}}}{{{V_{w2}}{u_2}}}\)
3
\(\frac{{{V_{w2}}{u_2}}}{{g{H_m}}}\)
4
\(\frac{{g{V_{w2}}{u_2}}}{{{H_m}}}\)

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