🔍 Key Concepts
• Compare the shape of buoy A with standard IALA buoy shapes (cylindrical, conical, pillar, spar).
• Recall that a can buoy has a very specific, simple geometric profile compared to a nun buoy.
• Note that color does NOT change the type (can, nun, pillar, spar) – only the shape does.
💭 Think About
• Look at buoy A’s side profile: is it tall and narrow, or short and wide? Does it look more like a cylinder, a cone, or a thin pole?
• Which of the answer choices describes a buoy that is basically a straight cylinder with a flat or nearly flat top?
• Compare A’s shape with C and D in the illustration: which one is clearly conical, and which one is a more complex tower/column type? That helps you narrow down A.
✅ Before You Answer
• Be sure you can describe in words the shape of each type: can = cylindrical, nun = conical, spar = very thin and tall, pillar = a more complex tower on a base.
• Double‑check that you are not using color to decide the answer – only the geometric outline of buoy A.
• Before choosing, rule out at least two shapes that clearly don’t match the squat, broad outline shown at A.