Question 46 AB01 - Able Seafarer

The Correct Answer is A **Why option A ("Square or triangular topmarks") is correct:** Cardinal marks do not use square or triangular topmarks. They utilize **two conical** (cone-shaped) topmarks stacked one above the other. The arrangement and direction of these two cones (e.g., pointing upwards for North, pointing together for East) indicate the specific direction (North, East, South, or West) of safe water. Square or single triangular topmarks are characteristic of Lateral Marks, not Cardinal Marks. Therefore, this option describes something that is **NOT** a characteristic of cardinal marks. **Why the other options are incorrect:** * **B) Yellow and black bands:** This is incorrect because all cardinal marks are universally painted with distinct patterns of yellow and black bands (the pattern determines the specific cardinal direction). This **is** a characteristic. * **C) White lights:** This is incorrect because all cardinal marks use distinct sequences of quick or very quick **white lights** to aid in identification at night. This **is** a characteristic. * **D) Directional orientation to a hazard:** This is incorrect because the entire purpose of a cardinal mark is to indicate the location of safe navigable water relative to a specific danger by referencing the cardinal points (North, East, South, or West) around the hazard. This **is** a characteristic.