Why does a centrifugal bilge pump require...

Why does a centrifugal bilge pump require...

Question 1 of 2921866636eec28f7522a1c51c0b6

Why does a centrifugal bilge pump require priming?

Question 1 of 29218

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Q

Why does a centrifugal bilge pump require priming?

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🔍 Key Concepts

• Centrifugal pump operation versus positive displacement pumps • What it means for a pump to be self-priming or not • Where the liquid must be in relation to the impeller for suction to be created

💭 Think About

• Think about what happens inside a centrifugal pump casing if it is full of air instead of water—what does the spinning impeller actually push? • Ask yourself: can a centrifugal pump create suction on its own if there is only air at the suction side? Why or why not? • Which choice directly relates to getting water from the bilge up into the eye of the impeller so flow can start at all?

✅ Before You Answer

• Verify which option deals with the pump’s inability to move air effectively at startup • Eliminate any choices that describe conditions that are already present after the pump is full of water and running normally • Focus on the option that addresses the need to initially fill the casing and suction line with liquid so flow can begin