🔍 Key Concepts

• Rule 24 – Towing and Pushing in the Navigation Rules • Difference between masthead lights (forward/after) and towing lights at the stern • Change in lighting requirements for tows less than 200 meters versus 200 meters or more

💭 Think About

• Ask yourself: For a power-driven vessel that is towing astern, what change is made to the masthead light arrangement compared to an ordinary power-driven vessel under way? • Consider: When does a towing vessel use two masthead lights versus three masthead lights in a vertical line? How does the length of tow affect this? • Think about whether the question is asking about masthead lights or stern/towing lights—which part of the vessel’s lighting is being tested here?

✅ Before You Answer

• Verify under Rule 24(a) exactly how many masthead lights in a vertical line are required for a towing vessel when the tow is less than 200 meters. • Confirm that three masthead lights in a vertical line are associated with a different towing situation (check what that situation is). • Check which option(s) refer to masthead lights forward versus towing lights at the stern, and match that with what the question specifically asks.