BOTH INTERNATIONAL & INLAND At night you...

Question 1 of 31048fy_heal_CREATE_q301_2027

BOTH INTERNATIONAL & INLAND At night you sight a vessel displaying one green light. What is indicated by this light configuration?

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Question 1 of 31048

Q

BOTH INTERNATIONAL & INLAND At night you sight a vessel displaying one green light. What is indicated by this light configuration?

🔍 Key Concepts

• Sidelights (red and green) and their meaning on power-driven and sailing vessels per Navigation Rules Part C – Lights and Shapes • The difference between a single sidelight and combinations of masthead, stern, or anchor lights • How a vessel would appear from the side vs. from ahead or astern at night

💭 Think About

• Think about which side of a vessel shows a green light and what that tells you about your relative position to that vessel • Consider whether an anchored or drifting vessel should show a sidelight at all • Ask yourself: would a vessel that is not making way through the water still show you a single green light from the side?

✅ Before You Answer

• Verify what lights an anchored vessel must show at night under the Navigation Rules • Check which vessels show sidelights only when underway versus when not making way • Confirm which side of a vessel the green sidelight is on and when you would see only that one light by itself