USCG Exam PracticeRule 30 — Anchored and Aground (lights)
Under the Inland Navigation Rules, a vessel of 60 meters in length at anchor at night shall exhibit which lights?
- A. One all-round white light where it can best be seen
- ✓ A forward all-round white light and a lower after all-round white lightCorrect
- C. Sidelights and a sternlight
- D. Two all-round red lights in a vertical line plus a forward all-round white light
Why B is correct
33 CFR §83.30(a) requires a vessel at anchor to exhibit a forward all-round white light and, at or near the stern at a lower level, a second all-round white light. The single-light option in §83.30(b) is available only to vessels less than 50 meters in length. Two red lights in a vertical line are the additional lights for a vessel aground, not merely at anchor.