USCG USCG ROR
Set 13 • Question #139 of 475
Launch Interactive Practice Room BOTH INTERNATIONAL & INLAND In which situation would risk of collision definitely exist?
A
A vessel is 22 degrees on your port bow, range increasing, bearing changing slightly to the right.
B
A vessel is broad on your starboard beam, range decreasing, bearing changing rapidly to the right.
C
A vessel is 22 degrees abaft your port beam, range increasing, bearing is constant.
D
A vessel is on your starboard quarter, range decreasing, bearing is constant.
✓ Correct Answer
USCG NMC Regulatory Explanation
Under Inland Navigation Rules, for the condition where 'In which situation would risk of collision definitely exist', the correct requirement is: 'A vessel is on your starboard quarter, range decreasing, bearing is constant.'. This standard ensures clear navigational intent and collision avoidance.
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