The most important factor, which determines the maximum height to which water can be lifted by a pump at standard temperature is the_____________________?
Correct answer: A. Barometric pressure
- A. Barometric pressure
- B. Speed of the impeller
- C. Diameter of the impeller
- D. Both B. and C.
Explanation
The maximum suction lift is fundamentally limited by atmospheric pressure, which supplies the pressure head pushing water up into the pump. Impeller speed and diameter affect pump performance but cannot remove this atmospheric-pressure limit.
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