USCG USCG ROR
Set 6 • Question #360 of 475
Launch Interactive Practice Room BOTH INTERNATIONAL & INLAND If you do NOT understand the course or intention of an approaching vessel you should sound __________.
A
one short blast
B
one prolonged blast
C
not less than five short blasts
✓ Correct Answer
D
not less than five prolonged blasts
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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