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Scuba Diving International: Exploring the Fundamentals of Underwater Exploration, Exams of Physics
A comprehensive overview of the key concepts and principles of scuba diving, covering topics such as the meaning of the acronym scuba, the advancements in diving equipment and technology, the physics of underwater environments, and the importance of safety and environmental awareness. It delves into the specific features that set scuba diving international (sdi) apart from other training agencies, highlighting their emphasis on the latest advancements in personal dive computers. The document also addresses common diving-related questions and concerns, such as the visual and auditory effects of being underwater, the behavior of marine life, and the importance of consulting with local dive centers before conducting dives in unfamiliar areas. This information is valuable for both novice and experienced divers, as it enhances their understanding of the fundamental aspects of scuba diving and equips them with the knowledge to navigate the underwater world safely and responsibly.
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SDI Scuba Diving International Part 1
What does SCUBA stand for?correct answerself-contained underwater breathing apparatus List the three important scuba diving changes that occurred in the 1950scorrect answerdive tables, PCD (personal computer devise), enhanced diving equipment Name three different devices that modern dive computers replace.correct answerdive tables, gauges, audible and visual alarms What sets Scuba Diving International apart from other training agencies?correct answerSDI understands the the importance of the latest advancements in personal dive computers How much larger and closer do objects appear underwater. Why?correct answer25% closer and 33% larger, the dive mask creates an artificial airspace. As light travels through this airspace, it bends, creating a magnifying effect How much faster does sound travel in water than air? Why?correct answer4 times faster because water is 800 times denser than air What is the first color to be absorbed underwater?correct answerRed is the first color to disappear under water. When diving from shore, the best time to dive is when there is the least amount of tidal current.correct answerSlack tide is when there is no horizontal water movement. If caught in a rip current, you shouldcorrect answerswim parallel to shore until you reach an area free of rip current Waves are usually caused bycorrect answerWind pushing water on the surface
Anticipate surge action to avoid contact with stationary objects. True or False?correct answertrue What types of marine life cause most diving injuries?correct answerfire coral, jellyfish, fish on the sea floor What should you do if you see a potentially dangerous animal underwater and it does not leave the area?correct answeravoid touching marine life, respect the environment List three different reasons that it is advisable to check with your local dive center before conducting a dive in an area you are unfamiliar with.correct answerfind out about local laws, typical environmental conditions, dangerous marine life and the first aid for treatment