USCG USCG ROR
Set 8 • Question #445 of 475
Launch Interactive Practice Room BOTH INTERNATIONAL & INLAND A vessel may use any sound or light signals to attract the attention of another vessel as long as __________.
A
white lights are not used
B
red and green lights are not used
C
the vessel signals such intentions over the radiotelephone
D
the signal cannot be mistaken for a signal authorized by the Rules
✓ Correct Answer
USCG NMC Regulatory Explanation
Under Inland Navigation Rules, for the condition where 'A vessel may use any sound or light signals to attract the attention of another vessel as long as', the correct requirement is: 'the signal cannot be mistaken for a signal authorized by the Rules'. This standard ensures clear navigational intent and collision avoidance.
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