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- Master & Chief Mate (Oceans or Near Coastal (Offshore Supply Vessel)) »
- Q204 - Navigation General: Oceans
203. A special mark (yellow buoy), if lighted, may exhibit which light rhythm?
A lighted special mark (yellow buoy) exhibits a flashing light rhythm to avoid confusion with standard safe-water mark patterns like Morse 'A', occulting, or equal interval.
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