🔍 Key Concepts

• Characteristics of navigational lights (light vs. dark period) • Definition of occulting vs. flashing lights in light lists and charts • How the relative duration of light and darkness defines the type of light

💭 Think About

• For each term in the choices, recall or look up how long the light is ON compared to how long it is OFF. • Ask yourself: in this question, is the focus on a light that is mostly visible with brief interruptions, or mostly dark with brief flashes? • Consider which of these light types is specifically defined by the condition that the dark period is longer than the light period.

✅ Before You Answer

• Verify which term is defined as a light where the duration of light is shorter than the duration of darkness. • Confirm that you are not mixing it up with the light type where the light period is longer than the dark period. • Check a Light List or chart legend to see how occulting and flashing are defined and symbolized.