If visibility permits, Little Gull Island...

🔍 Key Concepts

• Use of the Light List to find geographic and nominal ranges of lights • Difference between geographic range (based on height of light and observer) and luminous/nominal range (based on brightness and visibility) • How to interpret tabulated ranges in nautical publications rather than trying to calculate them from scratch on an exam question

💭 Think About

• Which U.S. Coast Guard publication would list Little Gull Island Light and give you its nominal or geographic range directly? • For this specific question, are you expected to do a height-of-eye calculation, or to recall/use the listed range from the Light List or chart? • Look at the pattern of answer choices: are they close together or widely spaced, and what does that suggest about relying on an exact listed value rather than rough mental math?

✅ Before You Answer

• Be sure you are thinking about the range shown in official publications, not the distance at which you personally might see it • Confirm in your mind whether exam questions about specific named lights usually want the published range, not a computed one • Verify that you are not confusing the light’s height in feet with its range in nautical miles when comparing to the choices

If visibility permits, Little Gull Island Light will break the horizon at a range of approximately __________.

18.0 miles

15.6 miles

11.1 miles

12.8 miles

🔍 Key Concepts

💭 Think About

✅ Before You Answer