You are underway and pass by a lighthouse....

Question 1 / 2707066636ee928f7522a1c51a500

Question 1 of 2707066636ee928f7522a1c51a500

You are underway and pass by a lighthouse. Its light, which was white since you first sighted it, changes to red. What does this indicate?

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Question 1 of 27070

You are underway and pass by a lighthouse. Its light, which was white since you first sighted it, changes to red. What does this indicate?

🔍 Key Concepts

• Sector lights on lighthouses and beacons • Color changes indicating safe water vs. danger sectors • Difference between a light’s characteristic (flash pattern) and its color sectors

💭 Think About

• When a lighthouse light changes from white to red as you move past it, what does that suggest about your position relative to dangers marked on the chart? • How are danger areas such as shoals, reefs, or obstructions commonly shown using the colored sectors of a lighthouse light? • Which choice describes something that would stay the same regardless of your vessel’s exact position around the lighthouse?

✅ Before You Answer

• Check how sector lights are depicted on a nautical chart and what the red sector usually covers. • Confirm that a light’s identifying characteristic refers to its pattern (e.g., flashing every 5 seconds), not to where its color changes by bearing. • Verify which options describe a fixed property of the light versus a position-dependent warning that changes as you move.

Question 1 of 27070

You are underway and pass by a lighthouse. Its light, which was white since you first sighted it, changes to red. What does this indicate?

It is the identifying light characteristic of the lighthouse

That you have entered an area of shoal water or other hazard

The lighthouse has lost power and has switched to emergency lighting

The light is characterized as alternately flashing

Question 1 / 2707066636ee928f7522a1c51a500

Question 1 of 2707066636ee928f7522a1c51a500

You are underway and pass by a lighthouse. Its light, which was white since you first sighted it, changes to red. What does this indicate?

Back

Question 1 of 27070

You are underway and pass by a lighthouse. Its light, which was white since you first sighted it, changes to red. What does this indicate?