In the North Sea area, you sight a buoy with...

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Question 1 of 2066636ee928f7522a1c519d0c

In the North Sea area, you sight a buoy with a quick light showing 3 flashes every 10 seconds. Which topmark in illustration D030NG below would be fitted to this buoy under the IALA Buoyage Systems?

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Question 1 of 20

66636ee928f7522a1c519d0c

In the North Sea area, you sight a buoy with a quick light showing 3 flashes every 10 seconds. Which topmark in illustration D030NG below would be fitted to this buoy under the IALA Buoyage Systems?

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🔍 Key Concepts

• Remember that the North Sea uses the IALA Region A buoyage system. • Quick light with 3 flashes every 10 seconds is a specific cardinal mark light characteristic. • Each cardinal mark (N, E, S, W) has a distinct topmark cone arrangement that matches its light group.

💭 Think About

• First, decide which cardinal direction (N, E, S, or W) is indicated by a quick light showing 3 flashes every 10 seconds. • Once you know the cardinal direction, recall how the two black cones are arranged for that specific cardinal mark. • Compare the theoretical cone arrangement for that cardinal mark with options A–D and eliminate the ones that don’t match.

✅ Before You Answer

• Verify from your IALA table which cardinal mark uses Q(3) 10s or VQ(3) 5s/10s as its light characteristic. • Double-check the orientation of the cone points (upwards, downwards, towards each other, or away from each other) for that same cardinal mark. • Make sure the option you choose shows two cones in the correct relative orientation for that cardinal direction, not just any pair of cones.

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Question 1 of 2066636ee928f7522a1c519d0c

In the North Sea area, you sight a buoy with a quick light showing 3 flashes every 10 seconds. Which topmark in illustration D030NG below would be fitted to this buoy under the IALA Buoyage Systems?

Back

Question 1 of 20

66636ee928f7522a1c519d0c

In the North Sea area, you sight a buoy with a quick light showing 3 flashes every 10 seconds. Which topmark in illustration D030NG below would be fitted to this buoy under the IALA Buoyage Systems?

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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