🔍 Key Concepts

• Rule 35 – Sound Signals in Restricted Visibility (International & Inland) • Difference between maneuvering signals (like course changes) and fog signals (identity/operation signals) • What a vessel that is underway but not making way or making way should sound in fog

💭 Think About

• Ask yourself: In fog, are you required to sound signals regularly even if you do NOT change course or speed? • Do two prolonged blasts in fog necessarily mean the other vessel is telling you a specific course change, or simply stating its status? • Which of the options would best maintain a proper warning to others of your presence without implying a maneuver you might not be making?

✅ Before You Answer

• Check what Rule 35 says about how OFTEN you must sound fog signals for a power-driven vessel underway making way. • Verify whether two prolonged blasts in fog are a normal, repeated fog signal or a one-time maneuvering signal. • Confirm if changing course just because you heard another vessel’s signal ahead is required, or if you should first ensure you are making the correct, repeated fog signal for your own status.