Cavitation occurs in a centrifugal pump when the suction pressure is________________?
Correct answer: D. Less than the vapour pressure of the liquid at that temperature
- A. Equal to the developed head
- B. Greater than the vapour pressure of the liquid at that temperature
- C. Equal to the vapour pressure
- D. Less than the vapour pressure of the liquid at that temperature
Explanation
Cavitation begins when the local liquid pressure falls below its vapour pressure at the operating temperature, allowing vapour bubbles to form. In a pump this commonly occurs near the impeller eye on the suction side.
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