The Light List indicates that a light has a nominal range of 13 miles and is 36 feet high (11.0 meters). If the visibility is 7.0 miles and your height of eye is 25 feet (7.6 meters), at what approximate distance will you sight the light?

Correct Answer: Option A — 10.0 miles

The sighting distance is the lesser of the luminous range or the geographic range. With 7 miles visibility, the luminous range is limited to 7 miles. However, the geographic range is 12.9 nm. Since the visibility is the limiting factor, the light is sighted at the visibility distance.