USCG USCG ROR
Set 13 • Question #135 of 475
Launch Interactive Practice Room BOTH INTERNATIONAL & INLAND A vessel 30 meters in length and aground would display a day- shape consisting of __________.
A
a cylinder
B
one black ball
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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