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--- --- built into masks are used for equalizing pressure in the ears and sinuses |
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The fin that is best suited for you will depend on your physical size, leg strength, environmental conditions and, most of all --- and --- |
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Water sbsorbs body heat --- times faster than air |
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The amount of lead weight you will need will vary based on a number of things including the type, size and --- of the suit you are using |
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Most recreational diving is done in temperatures between about 50°F-80°F Coverage and thickness preferences come into play at the warm and cold extremes of this range, but it is generally agreed that full wet suits should be worn from --- |
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A --- --- is one of the most important considerations when choosing a wet suit. |
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You may want to consider using a --- --- in waters below 65°F |
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The acronym S.C.U.B.A. stand for: --- |
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Self Controlled Underwater Breathing Apparatus |
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--- cylinders will affect your buoyancy more than ---, because there is a greater weight difference between a full and empty cylinder |
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There is no excuse for running out of air. Divers are equipped with a --- --- --- to monitor their air supply |
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Definition
Submersible Pressure Gauge |
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Using a --- provides the diver with many advantages over conventional analog gauges and dive tables. |
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The --- helps the diver maintain a sense of direction when naturak navigation is not possible due to lack of distinct underwater features or low visibility |
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When using the manual control button, extend the --- --- to the highest point in order to get the greatest efficiency in deflation |
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Diver's Luggage is often the most important pieve of equipment when it comes to the protection of your --- --- --- |
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The two kinds of flags used are the --- diver's flag and the --- flag, or the the international "diver down" flag |
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Many live-aboard dive boats and dive-boat operators now require that each diver have and use --- --- --- so that they can be more easily seen on the surface for pickup after the dive. |
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Definition
Inflatable Surface Markers |
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When traveling it is recommended to carry an extra --- and extra --- and --- pressure hoses. |
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In the U.S. a cylinder must be hydrostatically tested every --- --- and visually inspected every --- |
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Work with your local SSI Dealer and Instructor in determining your needs, and acquire your own --- as soon as you can |
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