In illustration D045NG below, what two...

Question 1 / 2707066636ee928f7522a1c519958

Question 1 of 2707066636ee928f7522a1c519958

In illustration D045NG below, what two shapes shown are used to indicate a preferred channel?

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Question 1 of 27070

In illustration D045NG below, what two shapes shown are used to indicate a preferred channel?

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🔍 Key Concepts

• Intracoastal Waterway (ICW) symbols on existing red and green aids to navigation • How yellow shapes are used to show the preferred channel when the ICW and a local channel share the same buoy or daymark • Difference between shapes used for regulatory/information signs and those used for ICW route indication

💭 Think About

• Which of these shapes can you picture as small yellow symbols superimposed on normal red or green buoys to show the ICW preferred side? • When a vessel is following the ICW, what shape tells you to keep that mark on your starboard side, and what shape tells you to keep it on your port side? • Looking at the four shapes, which two are most commonly seen paired on opposite sides of a channel rather than standing alone as warnings or information markers?

✅ Before You Answer

• Be sure you are thinking about ICW preferred channel marks, not junction buoys or regulatory signs. • Confirm that the two shapes you select are used together as opposites (one for each side of the channel). • Verify that your chosen shapes are simple geometric marks (not divided or multi‑sided warning symbols).

Question 1 of 27070

In illustration D045NG below, what two shapes shown are used to indicate a preferred channel?

A and D

C and D

B and C

A and B