SDI Open Water Scuba Diver Practice Exam 2025 – Complete Test Prep

Question: 1 / 400

Why is it important to monitor your air supply regularly during a dive?

To maintain buoyancy

To prevent running out of air unexpectedly

Monitoring your air supply regularly during a dive is crucial to prevent running out of air unexpectedly. As a diver descends and ascends, your air consumption can vary based on factors such as depth, physical exertion, and environmental conditions. By keeping track of your air supply, you can assess how much air you have left and make informed decisions about your dive plans. This practice ensures that divers always have a safe amount of air for both ascent and any necessary safety stops.

While buoyancy, dive depth, and nitrogen levels are important considerations for divers, they do not directly address the immediate safety concern of having an adequate air supply. Regularly checking your air helps maintain a safety-first approach during underwater exploration.

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To determine dive depth

To calculate nitrogen levels

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