USCG Exam Practice · Aids to Navigation — IALA-B (US) buoyage
Which numbering convention applies to green starboard-hand lateral aids in the IALA-B system?
- AEven numbers
- BOdd numbers✓ correct
- CNo numbers; green aids use only letters
- DNumbers prefixed with the letter 'G'
Why B is correct
In IALA-B, odd numbers are assigned to green (starboard-hand) aids, while even numbers are assigned to red (port-hand) aids. Bowditch Ch. 5 §501.
Cited:Bowditch Ch. 5 §501
Drill more Aids to Navigation — IALA-B (US) buoyage questions
Every CaptainsGround answer cites the rule it tests — verified, not guessed. Try a free 5-question drill, no sign-up.
More practice questions
- Which of the following correctly describes a nun buoy in the US lateral system?
- In the IALA-B buoyage system used in US waters, which numbering convention applies to r…
- Which of the following best describes the shape and color of a nun buoy in the US later…
- Which buoyage system is used in the United States, and what numbering convention applie…
- In IALA-B, what light color is exhibited by a starboard-hand lateral aid?
- Which light color is used on starboard-hand lateral aids in IALA-B waters?