🔍 Key Concepts

• Rule 17 – Action by stand-on vessel: what are you required to do first, and when are you allowed to maneuver? • Rule 34 – Maneuvering and warning signals: difference between maneuvering signals (1 or 2 blasts) and a danger/warning signal (5 or more blasts). • Responsibilities of the stand-on vessel versus the give-way vessel in a crossing situation.

💭 Think About

• Ask yourself: as the stand-on vessel, are you supposed to immediately change course, or first indicate that you doubt the other vessel’s actions? • Which sound signal, in the Rules, is specifically described for a situation where you are in doubt or think the other vessel is not taking sufficient action? • Look at which answer choices use maneuvering signals (1 or 2 blasts) and which use a danger signal, and match that to what Rule 17 and Rule 34 require in doubt of the other vessel’s actions.

✅ Before You Answer

• Verify in Rule 17 that the stand-on vessel must, at first, maintain course and speed, and only later take action if needed to avoid collision. • Check in Rule 34 which signal is defined as the danger or doubt signal and how many blasts it requires. • Confirm that simple maneuvering signals (1 or 2 blasts) are for stating your intended course change, not for indicating doubt about another vessel’s actions.