USCG USCG ROR
Set 12 • Question #120 of 475
Launch Interactive Practice Room BOTH INTERNATIONAL & INLAND In reduced visibility, you hear two prolonged blasts of a whistle. This signal is sounded by a __________.
A
power-driven vessel dead in the water
✓ Correct Answer
B
sailing vessel on the port tack
C
vessel not under command
D
vessel fishing with nets
USCG NMC Regulatory Explanation
Under Inland Navigation Rules, for the condition where 'In reduced visibility, you hear two prolonged blasts of a whistle. This signal is sounded by a', the correct requirement is: 'power-driven vessel dead in the water'. This standard ensures clear navigational intent and collision avoidance.
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