Motor Plants & Auxiliary Boilers USCG Question #1463 (Set 30)

Excessive wear at part No.11, shown in the illustration would result in __________. Illustration MO-0027

Official USCG Answer & Rule Citation

Correct Answer: Option B — increased oil consumption

Wear at part No. 11, typically representing the oil control ring or scraper ring, allows excessive lubricating oil to pass upward into the combustion chamber rather than being scraped back down, resulting in significantly increased oil consumption.

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