Correct combinations for centrifugal pump efficiencies are:
| a | Manometric efficiency | I | \(\frac{Water~power}{Shaft~power}\) |
|
b |
Mechanical efficiency | II | \(\frac{Water ~power}{Power~of~Impeller}\) |
| c | Hydraulic efficiency | III | \(\frac{Power~ in~fluid}{Impeller~power}\) |
| d | Overall efficiency | IV | \(\frac{Impeller~power}{Shaft~power}\) |
1
(a) - II, (b) - IV, (c) - III, d - I
2
(a) - III, (b) - II, (c) - I, d - IV
3
(a) - I, (b) - III, (c) - IV, d - II
4
(a) - IV, (b) - I, (c) - II, d - III