🔍 Key Concepts

• Review the IALA Maritime Buoyage System symbols, especially the safe water mark. • Remember that a safe water mark is colored red and white vertically and has a distinctive topmark shape. • Compare each option’s color code letters (such as RW, BW) and topmark symbol to the chart symbol for a safe water buoy.

💭 Think About

• Which option shows red and white (RW) coloring and the correct topmark shape used for safe water? • Look closely at how many shapes are in the topmark (balls/diamonds/cones) and how they are arranged—does that match a safe water mark or some other buoy type? • For each symbol, ask yourself: is this more like a lateral mark, an isolated danger mark, or a safe water mark that can be passed on any side?

✅ Before You Answer

• Verify the color code: safe water marks use red and white (RW) vertical stripes, not black or yellow. • Verify the topmark: a safe water mark carries one red sphere on top, not two spheres, diamonds, or cones. • Confirm that the symbol you pick is NOT the one used for isolated danger marks (two black balls) or preferred channel marks (lateral with different coloring).