USCG Exam PracticeRule 30 — Anchored and Aground (lights)
A vessel is aground at night. In addition to the anchor lights appropriate to her length, what additional lights shall she exhibit if practicable under the Inland Navigation Rules?
- ✓ Two all-round red lights in a vertical lineCorrect
- B. Three all-round red lights in a vertical line
- C. Two all-round white lights in a vertical line
- D. One all-round red light and one all-round white light in a vertical line
Why A is correct
33 CFR §83.30(d)(i) requires a vessel aground to exhibit, in addition to the anchor lights prescribed in §83.30(a) or (b), two all-round red lights in a vertical line where they can best be seen, if practicable. Three balls in a vertical line are the corresponding daytime shape per §83.30(d)(ii), not an additional light.
Cited:33 CFR §83.30(d)