USCG Exam PracticeRule 28 — Constrained by Draft (lights)
When two or three lights are required to be carried in a vertical line on a vessel of 20 meters or more in length, what is the minimum vertical spacing between those lights, and what is the minimum height of the lowest light above the hull (excluding a towing light)?
- A. 0.5 meters apart; lowest light at least 2 meters above the hull
- ✓ 1 meter apart; lowest light at least 4 meters above the hullCorrect
- C. 1 meter apart; lowest light at least 2 meters above the hull
- D. 2 meters apart; lowest light at least 4 meters above the hull
Why B is correct
33 CFR §84.02(i)(i) specifies that on a vessel of 20 meters or more in length, lights carried in a vertical line shall be spaced not less than 1 meter apart, and the lowest of these lights shall be placed at a height of not less than 4 meters above the hull (except where a towing light is required).
Cited:33 CFR §84.02