Advanced Scuba Diving Techniques and Procedures, Exams of Sport Studies

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Advanced Scuba Chapter Quizzes (NAUI) VERIFIED 100% The most efficient way to approximately measure 800 m underwater is to use kick cycles to count the distance traveled - ANSWER true Natural navigation does not require you to look back at where you have been and should never be combined with compass navigation - ANSWER False A compass is non-magnetic and does not interact with manmade objects or magnetic fields - ANSWER False put the basic natural navigation procedure in the correct order - ANSWER 1) establish starting references 2) follow pre-planned general course 3 )move forward from nav aid to nav aid and frequently look back 4) develop a desire to remember pair navigation equipment with information it provides - ANSWER Dive computer: duration of swimming and vertical position in the water column compass: bearings and degree markings to plot a path timing device: duration of swimming clear mind: concentration of maintaining a bearing and noting natural navigation aids depth gauge: vertical position in the water column match cardinal directions with their correct degree values - ANSWER South: 180 north: 0 east: 90 west: 270 Using the ODIGTML dive planning method, night diving would add additional steps to the ____ sections of the dive plan - ANSWER mission and logistics Moving the light in an O means - ANSWER OK moving the light in a slow arc - ANSWER look here moving the light quickly in horizontal and vertical directions - ANSWER Need help, distress Pair the signal with the correct action - ANSWER OK: a large O formed by repeating a slow circle attention: slow sweeping movement of light up and down or side to side distress/emergency: rapid movement of the light up and down or side to side surface distress/emergency: light extended moving in exaggerated 180 degree arcs overhead deeper diving is generally defined as dives to depths greater than 18m (60ft) - ANSWER true completion of NAUI advanced scuba diver course can prepare you to undertake no-required- decompression dives at depths up to 40m (130ft) - ANSWER true gas management: rule of thirds logistics: having additional breathing air available at 15 ft decompression: dive computer/RGBM Inert Gas narcosis: nitrogen narcosis/79% nitrogen mission: exploring a coral reef wall oxygen: 21% oxygen/normal air if deeper diving is going to be a regular activity you will need to have some additional equipment to your normal gear, check all that apply - ANSWER redundant dive computers or depth/timing device redundant scuba/pony bottle extra breathing gas cylinder hanging at the safety stop Types of search patterns - ANSWER contour expanding square parallel line circular put the basic procedure for compass navigation in the correct order - ANSWER have a starting heading and follow a general course take a bearing on the most distant object you can see for your heading as you go from point to point mentally note natural navigation items that might aid you on return be aware of deviation if you're navigating around wrecks or other ferrous metal objects As you swim compensate for currents to maintain the bearing Put the steps of surface positioning or getting a fix in the correct order - ANSWER visually identify two objects that are directly inline with each other take a bearing on the first pair of objects write down the objects and the bearing turn 90 and select two more objects that are directly inline with that bearing write down the second pair of objects and their bearing Low visibility when diving can be defined as the inability to identify another diver at a distance of 3m (10ft) in a horizontal direction - ANSWER True Place summary list in the correct order for the procedures of night diving - ANSWER keep excursions short monitor instruments and buddy more frequently if separated cover your light and slowly turn in a circle looking for your buddies light keep your light beam out of other divers and animals eyes if your light fails switch to a back up, signal your buddy, and make a controlled ascent control your anxiety lights are an obvious requirement for diving at night, but you may not be aware that several different types are available. The principle requirement is a good ____ dive light. A smaller ____ light is also useful to make a safe exit in the event your ____ light fails during the dive. Each diver should have both a ____ and a ____ light - ANSWER primary, backup, primary, primary, backup participation in a night dive during this course certifies me as a night diver and I should not seek additional training if I want to gain more experience at night - ANSWER false Summary searching for an object - ANSWER determine starting point for the search and define the limits of the search area -limits may be done with depth, distance, time or any relevant parameter determine what search pattern would be most effective given the area -factors such as current, visibility, object size and boat traffic determine how to track/mark off the areas that have already been searched -maybe use weighted buoys or compass bearings -if pattern is completed and object not found, determin new starting point with slightly overlapping the original area Mark the position of the object with marked buoy once it's been located External wreck diving doesn't require any equipment beyond your regular gear - ANSWER true