A vessel approaching a narrow channel should avoid crossing the channel if doing so would impede another vessel navigating in the channel. What action is correct?

• A. Continue crossing to the other side
• B. Avoid crossing the channel if it impedes another vessel
• C. Enter the channel and pass on the port side
• D. Stop and wait for the other vessel to pass

Answer: (B)

In a narrow channel, vessels that must navigate the channel have priority, so you should not cross if doing so would block or slow them down. The best action is to stay clear of the channel and avoid crossing when it would impede the other vessel’s safe passage. This keeps the channel open for the vessel that needs it and aligns with the rule that you must not obstruct a vessel navigating within a constrained waterway. The other options would risk blocking the channel or forcing the other vessel to maneuver around you, which isn’t appropriate when you can avoid crossing and wait for a safer moment.