Entering from seaward, what do triangular-sha...

Entering from seaward, what do triangular-sha...

Question 1 of 2707066636ee928f7522a1c5196c6

Entering from seaward, what do triangular-shaped daymarks mark?

Question 1 of 27070

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Entering from seaward, what do triangular-shaped daymarks mark?

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🔍 Key Concepts

• Lateral buoyage system (IALA B) in U.S. waters • Shapes and colors of port vs. starboard aids when entering from seaward • Difference between daymarks (fixed markers) and buoys (floating aids)

💭 Think About

• When you are ENTERING from seaward, which side of the channel do red aids mark in the U.S. system? • Which geometric shape (triangle or square) is associated with that side for fixed daymarks? • Look at each choice and ask: does that description match the basic function of that color/shape in the lateral system, or is it describing a more specialized mark?

✅ Before You Answer

• Verify which side of the channel is marked by red, even-numbered, triangular daymarks when returning from sea in IALA B waters • Distinguish between preferred channel marks (bifurcation marks) and simple lateral marks • Confirm that daymarks used for the channel centerline or special purpose areas have different shapes/colors than standard lateral red/green channel side marks