A vessel restricted in her ability to maneuver shall

A vessel restricted in her ability to maneuver shall

• A. Turn off her stern light
• B. Turn off her sidelights when not making way
• C. Show only red lights
• D. Show no lights

Answer: (B)

When a vessel is restricted in her ability to maneuver, the aim is to clearly indicate that status to other vessels so they can take appropriate action and not mistake the vessel for one that is simply underway and steering normally. Turning off the colored sidelights when not making way avoids giving the impression that the vessel is moving or about to turn, which helps prevent misinterpretation in busy waters. The other options would either reduce visibility (showing no lights, or turning off the stern light) or provide an invalid signal (showing only red lights), making them inappropriate for conveying the restricted-maneuver condition.

When a vessel is restricted in her ability to maneuver, the aim is to clearly indicate that status to other vessels so they can take appropriate action and not mistake the vessel for one that is simply underway and steering normally. Turning off the colored sidelights when not making way avoids giving the impression that the vessel is moving or about to turn, which helps prevent misinterpretation in busy waters. The other options would either reduce visibility (showing no lights, or turning off the stern light) or provide an invalid signal (showing only red lights), making them inappropriate for conveying the restricted-maneuver condition.