What is the topmark of a South Cardinal Buoy?

Master the Navigation, Seamanship, and Shiphandling (NSS) – Officer of the Deck (OOD) Phase 2 Exam with engaging flashcards and multiple choice questions, complete with hints and explanations. Prepare comprehensively for your test!

Multiple Choice

What is the topmark of a South Cardinal Buoy?

Cardinal marks use the topmark shapes to show where the safe water lies relative to the buoy. For the South Cardinal, the topmark is two black cones with their apexes facing downward. This orientation signals that safe water is to the south of the buoy. (In contrast, a North Cardinal has two cones apex up, and East/West use a single cone topmark to differentiate.) So the two black cones pointing downward uniquely identify the South Cardinal buoy.

Cardinal marks use the topmark shapes to show where the safe water lies relative to the buoy. For the South Cardinal, the topmark is two black cones with their apexes facing downward. This orientation signals that safe water is to the south of the buoy. (In contrast, a North Cardinal has two cones apex up, and East/West use a single cone topmark to differentiate.) So the two black cones pointing downward uniquely identify the South Cardinal buoy.

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