🔍 Key Concepts

• Chart symbols for wrecks and what different styles of wreck symbols mean about the danger to navigation • The difference between a known dangerous wreck, a reported/position doubtful wreck, and a wreck cleared by wire drag • How U.S. charts indicate when an object’s existence is doubtful or the obstruction has been wire-dragged to a specific depth

💭 Think About

• Look at the wording in each option and match it to the exact type of wreck symbol and label you would expect to see on the New London Harbor chart for that location. • Ask yourself: if the Coast Guard and NOAA were NOT sure the wreck still exists or where it is, how would that normally be shown on the chart? • Consider which statement sounds permanent and precise, and which sounds more like a chart note about uncertainty or past survey work.

✅ Before You Answer

• Identify how a confirmed dangerous wreck that affects vessels over a certain draft is normally described on a chart or in Coast Pilot. • Recall the charting term used when the existence of an object is doubtful or only reported (look for abbreviations like "Rep" or "ED"). • Think about whether a wreck that was wire‑dragged in 1982 would simply be removed from future charts, or whether some indication of its prior existence and sweep depth would usually remain.