USCG USCG ROR
Set 6 • Question #361 of 475
Launch Interactive Practice Room BOTH INTERNATIONAL & INLAND If your vessel is underway in fog and you hear one prolonged and three short blasts, this is a __________.
A
vessel not under command
B
sailing vessel
C
vessel being towed (manned)
✓ Correct Answer
D
vessel being towed (unmanned)
USCG NMC Regulatory Explanation
Under Inland Navigation Rules, for the condition where 'If your vessel is underway in fog and you hear one prolonged and three short blasts, this is a', the correct requirement is: 'vessel being towed (manned)'. This standard ensures clear navigational intent and collision avoidance.
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