USCG USCG ROR
Set 12 • Question #108 of 475
Launch Interactive Practice Room BOTH INTERNATIONAL & INLAND What day-shape is to be shown by a vessel aground?
A
A cylinder
B
Two cones with their apexes together
C
Two black balls in a vertical line
D
Three black balls in a vertical line
✓ Correct Answer
USCG NMC Regulatory Explanation
Under Rule 30(d), an aground vessel displays anchor lights plus two all-round red lights in a vertical line at night, and three black balls in a vertical line by day.
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