USCG USCG ROR
Set 13 • Question #137 of 475
Launch Interactive Practice Room BOTH INTERNATIONAL & INLAND At night you observe a vessel ahead show three flashes of a white light. This signal indicates that the vessel ahead is __________.
A
in distress
B
approaching a bend in the channel
C
operating astern propulsion
✓ Correct Answer
D
intending to overtake another vessel
USCG NMC Regulatory Explanation
Under Inland Navigation Rules, for the condition where 'At night you observe a vessel ahead show three flashes of a white light. This signal indicates that the vessel ahead is', the correct requirement is: 'operating astern propulsion'. This standard ensures clear navigational intent and collision avoidance.
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