USCG USCG ROR
Set 10 • Question #57 of 475
Launch Interactive Practice Room BOTH INTERNATIONAL & INLAND Which statement is TRUE of a 30-meter sailing vessel underway?
A
She must show sidelights and a stern light in restricted visibility.
✓ Correct Answer
B
She may show an all- round white light at the top of the mast.
C
She need not show a stern light if she is showing all-round lights on the mast.
D
If she is using propelling machinery, she shall show forward a shape consisting of two cones, apexes together.
USCG NMC Regulatory Explanation
Under Inland Navigation Rules, for the condition where 'Which statement is TRUE of a 30-meter sailing vessel underway', the correct requirement is: 'She must show sidelights and a stern light in restricted visibility.'. This standard ensures clear navigational intent and collision avoidance.
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