Motor Plants & Auxiliary Boilers USCG Question #988 (Set 21)

In addition to checking the lube oil sump level and temperature of a line shaft steady bearing, what else must be checked for?

Official USCG Answer & Rule Citation

Correct Answer: Option B — Ensure free rotation of the oiling ring with the shaft.

Ring-oiled journal bearings rely on a loose-fitting metal ring riding atop the rotating shaft journal to continuously lift oil from the lower sump to the top of the shaft, requiring visual verification of free rotation during rounds.

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