Engine Safety (Supplementary) USCG Question #468 (Set 6)

Which of the labeled figures illustrated, represents the correct alignment mark relationships of a properly reassembled centrifuge bowl? Illustration MO-0022

USCG Exam Illustration MO-0022
USCG Examination Diagram: Illustration MO-0022
Official USCG Answer & Rule Citation

Correct Answer: Option A — A

Centrifuge bowl components are dynamically balanced at high RPMs and must align precisely using manufacturer stamped timing marks. Figure A demonstrates the correct indexing to prevent catastrophic vibrations, bearing destruction, and potential bowl separation during operation.

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