USCG Exam PracticeRule 12 — Sailing Vessels
A sailing vessel of 15 meters in length is underway at night. She elects to use the combined lantern option. Which additional light display is she prohibited from using simultaneously with that combined lantern?
- A. A sternlight
- ✓ Two all-round lights in a vertical line, upper red and lower green, at or near the mastheadCorrect
- C. Sidelights mounted on the hull
- D. An all-round white anchor light
Why B is correct
33 CFR §83.25(b) permits a sailing vessel of less than 20 meters to combine sidelights and sternlight into one lantern at or near the masthead. However, §83.25(c) explicitly states that the optional tri-color masthead lights (upper red, lower green all-round lights) shall not be exhibited in conjunction with the combined lantern permitted by paragraph (b).
Cited:33 CFR §83.25