What does the chart symbol depicted at LAT...

What does the chart symbol depicted at LAT...

Question 1 of 2707066636eea28f7522a1c51af43

What does the chart symbol depicted at LAT 40°58.5'N, LONG 72°43.4'W indicate?

Question 1 of 27070

Q

What does the chart symbol depicted at LAT 40°58.5'N, LONG 72°43.4'W indicate?

🔍 Key Concepts

• U.S. Chart No. 1 section on wrecks, obstructions, and fouls • Difference between a submerged wreck, partially visible wreck, and non-dangerous wreck symbols • How soundings and datum relate to what part of a wreck may be visible above water

💭 Think About

• Look up the specific wreck symbols in U.S. Chart No. 1 and compare which ones show masts only, which show parts of the hull, and which are fully submerged • Think about how a chart would distinguish between a floating aid to navigation (like a lightship) and a fixed or semi-submerged obstruction • Ask yourself: if only the mast is visible versus some of the hull, how would the chart symbol logically need to look different to warn mariners?

✅ Before You Answer

• Confirm which symbol in U.S. Chart No. 1 is used for a wreck with mast only visible and how it is drawn • Confirm which symbol is used for a wreck that is partly above the chart datum (some hull visible) and note its graphic difference • Verify that symbols for lightships and lighthouses are completely different style from wreck/obstruction symbols