Tauchen (Fach) / Advanced Open Water Diver - Wreck Diving (Lektion)

Advanced Open Water Diver

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• Common reasons why divers explore shipwrecks include curiosity, adventure, aquatic live and photography - True - False True
• One reason artifact removal is discouraged is that it makes the dives sites less interesting for other divers - True - False True
• The two primary considerations that have to led to the development of shipwreck laws include (check all that apply) 1. cultural resource protection 2. artificial reef preservation 3. diver safety 4. salvage rights 1, 4
• Potential hazards common to many wrecks include (check all that apply) 1. sharp objects 2. entanglement 3. surge pockets 4. aquatic life 5. unstable structure 1, 2, 3, 4, 5
• Wreck dives deeper than 18 metres / 60 feet call for which of the following considerations (check all that apply) 1. accounting for narcosis 2. certification as a PADI Deep Diver 3. planning for reduced bottom time 4. high capacity cylinder 1, 2, 3, 4, 5
• Local hazards, points of interest and diving techniques vary from wreck to wreck and area to area, making a local orientation to a new wreck a good idea - True - False True
• Entering (penetrating) a shipwreck presents five significant hazards. These include or may result in (check all that apply) 1. loss of direction, so you can't find your way out 2. difficulty sharing air in restricted passages in an emergency si 1, 2, 3, 4, 5
• When visiting a shipwreck for the first time, you should (check all that apply) 1. what artifacts you want to remove 2. possible hazards 3. points of interests 4. the general condition 2, 3, 4
• The easiest way to navigate a fairly intact wreck in clear water is generally to - follow the wreck's layout - use a feature reference - follow a base line - none of the above follow the wreck's layout
• Your compass may be inaccurate on a wreck because - cross currents tend to be irregular on a wreck - wreck environments are too restricted to take a bearing - regional compass anomalies cause most shipwrecks in the first place - iron and st iron and steel objects may attract the magnetic compass needle

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