What prevents water running along the shaft of a leaking centrifugal pump from entering the shaft bearing?
Official USCG Answer & Rule Citation
Correct Answer: Option C — Water flinger
A water flinger, or slinger ring, is mounted tightly on the rotating shaft outboard of the stuffing box. As the shaft turns, centrifugal force throws dripping or creeping water outward away from the shaft, preventing it from migrating into the bearing housing.
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