USCG USCG ROR
Set 6 • Question #363 of 475
Launch Interactive Practice Room BOTH INTERNATIONAL & INLAND A 200-meter vessel is aground in fog. Which signal is optional?
A
A bell signal
B
A gong signal
C
A whistle signal
✓ Correct Answer
D
All of the above
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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