Which symbol represents a 10-fathom curve?

Question 1 of 31048EGyuTWzKS7nk22yISCcd

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Question 1 of 31048

Q

Which symbol represents a 10-fathom curve?

🔍 Key Concepts

• Nautical chart symbology for depth contours • How fathom curves are distinguished from meter or foot contours • Difference between dotted, dashed, and solid contour line styles on charts

💭 Think About

• Look at how different depth contours are shown on a standard NOAA or Admiralty chart—what pattern is used for the main depth contour intervals like 10, 20, or 30 fathoms? • Compare which option looks most like a continuous contour line versus one that suggests isolated points or soundings. • Think about whether a depth curve would typically be drawn as a broken line, a series of dots, or something else to show a continuous change in depth.

✅ Before You Answer

• Confirm from a chart legend what symbol style is used for depth contours vs. individual soundings. • Check which choice best represents a continuous contour line rather than separate marks. • Verify that the symbol you choose is consistent with how other contour intervals (e.g., 5 fathom, 20 fathom) are drawn on standard nautical charts.