Scuba Diving International (SDI) Computer Nitrox Practice Exam

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Study for the Scuba Diving International (SDI) Computer Nitrox Exam. Enhance your diving skills with detailed explanations, multiple-choice questions, and expert tips. Be fully prepared for your certification today!

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What is an oxygen analyzer primarily used for?

Used to store gas mixtures
Measure the percentage of oxygen in a gas mixture
Fill tanks with Nitrox
Calibrate dive computers

The correct answer is: Measure the percentage of oxygen in a gas mixture

An oxygen analyzer is primarily utilized to measure the percentage of oxygen in a gas mixture, particularly in Nitrox. This measurement is crucial for divers who use Nitrox blends as it directly influences their dive planning and safety. By knowing the exact percentage of oxygen, divers can calculate the maximum operating depth for their specific gas mix to avoid oxygen toxicity and ensure they remain within safe diving limits. The ability to determine the oxygen content allows divers to make informed decisions about their dives and adjust their plans as necessary based on the gas they are using. Understanding the precise composition of the breathing gas is vital for ensuring proper safety protocols and adherence to dive tables or dive computer alerts related to oxygen exposure.