USCG USCG ROR
Set 16 • Question #213 of 475
Launch Interactive Practice Room BOTH INTERNATIONAL & INLAND Which signal may be used by a vessel that is in doubt as to whether sufficient action is being taken by another vessel to avoid collision?
A
A continuous sounding of the fog horn
B
Firing a gun every minute
C
Five or more short rapid blasts on the whistle
✓ Correct Answer
D
One prolonged blast on the whistle
USCG NMC Regulatory Explanation
Under Rule 34(d), when vessels in sight of one another are in doubt whether sufficient action is being taken to avoid collision, the vessel in doubt must immediately sound at least 5 short and rapid blasts on the whistle.
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