Scuba Diving International (SDI) Computer Nitrox Practice Exam

What is the primary function of a Nitrox fill station log?

1. To record the temperature and pressure of the dive

2. To indicate your satisfaction with the Nitrox fill received

3. To document your dive history for safety purposes

4. To track the number of dives made with each mixture

The correct answer is: To indicate your satisfaction with the Nitrox fill received

The primary function of a Nitrox fill station log is to document the details of each Nitrox fill, including critical information about the gas mixture, analysis results, and the conditions under which the fill was conducted. This documentation is essential for ensuring that divers are using the proper gas mixture for their dives, which directly impacts safety and dive planning. While indicating satisfaction with the Nitrox fill received is important for customer feedback, it does not serve the core function of the log. The log is primarily a tool for tracking the specifics of the fills rather than collecting subjective opinions about the service. Correctly recording and maintaining this information ensures that divers can reference their fills for safety and planning, which is crucial when preparing for dives that utilize enriched air Nitrox.