In centrifugal pump operation, the cavitation can be eliminated by maintaining suction pressure ______________ the vapor pressure of the liquid at the suction temperature?
Correct answer: A. Higher than
- A. Higher than
- B. Lower than
- C. Equal to
- D. None of these
Explanation
Cavitation begins when the local liquid pressure falls to or below the vapour pressure at the operating temperature. Maintaining suction pressure higher than vapour pressure provides the pressure margin needed to prevent vapour-bubble formation.
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