USCG Exam Practice · Rule 30 — Anchored and Aground (lights)
A vessel aground in inland waters is required to display, in addition to the appropriate anchor lights, which additional lights if practicable?
- AThree all-round red lights in a vertical line
- BTwo all-round red lights in a vertical line✓ correct
- CTwo all-round white lights in a vertical line
- DOne all-round red light and one all-round white light in a vertical line
Why B is correct
33 CFR §83.30(d)(i) requires a vessel aground to exhibit the applicable anchor lights plus, if practicable, two all-round red lights in a vertical line. Three balls in a vertical line are the corresponding day shape under §83.30(d)(ii), not an additional light.
Cited:33 CFR §83.30
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