As you approach 265 (AHP) you notice on the...

Question 1 of 27070673956e598d45f16831b6d29

As you approach 265 (AHP) you notice on the map a circle with 2 black sectors. What does this symbol indicate?

Question 1 of 27070

As you approach 265 (AHP) you notice on the map a circle with 2 black sectors. What does this symbol indicate?

🔍 Key Concepts

• Inland river chart symbols for aids to navigation and structures • How river locks, warning signs, river gages, and mooring buoys are typically depicted on charts • The meaning of a circle with sectors or wedges inside it on an inland river chart

💭 Think About

• Ask yourself: Which of these four items would logically be represented by a circular symbol with two black sectors rather than a rectangle, square, triangle, or simple circle? • Think about which feature needs to show ranges or directions of something (like water level, danger, or attachment point) versus just marking a fixed structure. • Consider where you would expect to find each item (lock, warning sign, river gage, mooring buoy) and how a chart maker would best show that function with sector-like markings.

✅ Before You Answer

• On standard river charts, verify what symbol is used for a lock—does it look more like a structure outline or a small circle with sectors? • Check how a warning sign and a mooring buoy are normally drawn—are they plain geometric shapes or do they have special sector markings? • Look up the chart symbol for a river gage and see whether it involves sectors or indicators showing some form of measured condition.