Dive Leader Knowledge: DT8 - Dive Planning Question Title * 1. Who should appoint the Dive Manager for a branch dive? The Diving Officer The skipper Dive Managers are self-appointed The diving party, by mutual agreement OK Question Title * 2. Which of the following is a correct statement about the role of the DM on a BSAC branch dive? Please select all that apply. The DM Has the authority of the Diving Officer The DM can stop others diving, for safety reasons The DM should be the most highly qualified member of the group The DM must perform all tasks needed for dive management personally The DM is in charge so should not consult with other divers OK Question Title * 3. The training and experience gained through becoming a Dive Leader enables you to manage dives at what type of site? Inland Known to the branch Non-tidal Shallow Unknown OK Question Title * 4. How many positions on the Earth's surface have latitude 50°N longitude 5°W? 1 2 3 4 5 OK Question Title * 5. How far is a nautical mile? 1 statute mile 5208 feet 1852m OK Question Title * 6. Why is it important to use the part of the latitude scale adjacent to the area concerned when measuring distances on a chart? Because the parallels of latitude are a constant distance apart Because it's the easiest way to use dividers Because projecting the Earth's surface onto a flat piece of paper may introduce distortions so that the same distance is a longer line on some parts of the chart than on others It isn't important OK Question Title * 7. Which of the following electronic devices uses radio signals from satellites to fix its position? Echo sounder GPS receiver VHF radio Magnetometer Digital compass OK Question Title * 8. What is a transit? A position line A pair of waypoints A conspicuous feature on land A visual sighting lining up two features A compass bearing used to fix the position of a dive site OK Question Title * 9. Which of the following makes for the best transit, other things being equal? Two features close together Two features far apart More than two features Nearest feature closer to the eye than to the other feature Nearest feature further from the eye than to the other feature OK Question Title * 10. Which of the following gives the most accurate position fix, other things being equal? Two transits less than 90° apart Two transits 90° apart Two transits more than 90° apart Two transits 180° apart OK Question Title * 11. Why is being able to predict the maximum depth at the dive site important for dive planning? Please select all that apply. For planning decompression For choosing a site which matches the divers' qualifications and experience For planning breathing gas quantity For planning breathing gas mix OK Question Title * 12. Which of the following applies to UK tide tables? Please select all that apply. Times are usually given in UT Add one hour during BST Use the table for the Standard Port nearest to the dive site Tide tables may include symbols to indicate the dates of full moon and new moon Tide tables show the times of slack water OK Question Title * 13. Which of the following statements are correct? Please select all that apply. The highest high waters occur on spring tides The lowest low waters occur on neap tides Expect lower high waters around three-quarters moon Expect higher low waters around full moon Expect lower low waters around new moon OK DONE