Under the IALA-A Buoyage System, when...

Question 1 / 2707066636ee928f7522a1c5198fa

Question 1 of 2707066636ee928f7522a1c5198fa

Under the IALA-A Buoyage System, when entering from seaward, a buoy indicating the preferred channel is to starboard may have which of the following?

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Question 1 of 27070

Under the IALA-A Buoyage System, when entering from seaward, a buoy indicating the preferred channel is to starboard may have which of the following?

🔍 Key Concepts

• IALA-A lateral marks color and shape when entering from seaward • Meaning of a preferred channel to starboard mark (also called a bifurcation or junction mark) • How light characteristics, colors, and topmarks change between main and preferred channels

💭 Think About

• When entering from seaward in IALA-A, what color marks the starboard side of the main channel? How does that change for a preferred channel to starboard? • For a preferred channel mark, which features stay the same as the main channel, and which feature changes to show the preferred direction? • Look at each option: which ones describe the basic lateral system for starboard in IALA-A, and which one describes the special pattern used only for preferred channel marks?

✅ Before You Answer

• Verify the standard color and shape of starboard lateral marks in IALA-A when entering from seaward • Confirm what extra band or section of color is added to show a preferred channel to starboard • Check which features (light color, light rhythm, topmark, shape) are used to distinguish a preferred channel mark from an ordinary lateral mark

Question 1 of 27070

Under the IALA-A Buoyage System, when entering from seaward, a buoy indicating the preferred channel is to starboard may have which of the following?

A green light

A long-flashing light characteristic

A square topmark

A conical shape

Question 1 / 2707066636ee928f7522a1c5198fa

Question 1 of 2707066636ee928f7522a1c5198fa

Under the IALA-A Buoyage System, when entering from seaward, a buoy indicating the preferred channel is to starboard may have which of the following?

Back

Question 1 of 27070

Under the IALA-A Buoyage System, when entering from seaward, a buoy indicating the preferred channel is to starboard may have which of the following?