Babbitt is a metal alloy commonly used for lining __________.
Official USCG Answer & Rule Citation
Correct Answer: Option D — precision bearings
Babbitt is a soft, high-tin or high-lead white metal alloy possessing high conformability and embeddability. These properties make it the ideal lining material for precision journal and reduction gear bearings, protecting hardened steel shafts from catastrophic scoring.
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