Steam Plants (Boilers & Turbines) USCG Question #316 (Set 11)

Which of the following conditions is indicated by oil flowing through a lube oil gravity tank overflow sight glass?

Official USCG Answer & Rule Citation

Correct Answer: Option D — Sufficient oil flow is being supplied to the gravity tank.

Continuous flow through the gravity tank overflow sight glass confirms that the service pump is supplying adequate volume and maintaining proper operating level.

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