The excess of the sum of pressure & velocity heads over the vapor pressure of the liquid at the suction is called the___________________?
Correct answer: B. Net positive suction head (NPSH)
- A. Static submergence
- B. Net positive suction head (NPSH)
- C. Cavitation sensitivity
- D. Priming
Explanation
NPSH is the suction pressure head, expressed relative to the liquid vapour-pressure head, available to prevent cavitation at a pump suction. Static submergence refers only to the liquid level or elevation contribution.
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