BOTH INTERNATIONAL & INLAND You are on a...

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Question 1 of 2066636eeb28f7522a1c51bdce

BOTH INTERNATIONAL & INLAND You are on a vessel and see ahead the lights shown in illustration D059RR below. These lights indicate which of the following?

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Question 1 of 20

66636eeb28f7522a1c51bdce

BOTH INTERNATIONAL & INLAND You are on a vessel and see ahead the lights shown in illustration D059RR below. These lights indicate which of the following?

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🔍 Key Concepts

• Rule 20-21 – Lights and shapes: what does a single green sidelight plus a white masthead light tell you about which side of the vessel you are seeing? • Starboard vs. port sidelight: green = starboard side, red = port side; think about where you must be relative to that vessel to see its green light and masthead light together. • Overtaking vs. crossing (Rule 13 & Rule 15): in an overtaking situation, do you normally see a sidelight, or mainly the sternlight?

💭 Think About

• If you see only a green sidelight and a white light ahead at night, are you looking more at the bow/side of the other vessel, or directly at her stern? How does that affect whether this is overtaking or crossing? • If you can see the other vessel’s starboard sidelight, on which side of your vessel must that ship be: on your port side or on your starboard side? Picture the geometry. • For a true head‑on meeting, what sidelight colors should be visible at the same time? Does this illustration show that? Why or why not?

✅ Before You Answer

• Verify that green = starboard sidelight and consider from which side of that vessel you must be viewing it. • Check whether an overtaking vessel should show you any sidelight at all, according to the arcs of visibility in Rule 21. • Confirm in Rule 15 – Crossing Situation which vessel is the give-way vessel when another power‑driven vessel is on your starboard side; then match that geometry to which side light (red or green) you would expect to see.

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Question 1 of 2066636eeb28f7522a1c51bdce

BOTH INTERNATIONAL & INLAND You are on a vessel and see ahead the lights shown in illustration D059RR below. These lights indicate which of the following?

Back

Question 1 of 20

66636eeb28f7522a1c51bdce

BOTH INTERNATIONAL & INLAND You are on a vessel and see ahead the lights shown in illustration D059RR below. These lights indicate which of the following?

No comments yet

Be the first to share your thoughts!

If the question has a related picture, it will appear here.

🔍 Key Concepts

💭 Think About

✅ Before You Answer

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