Scuba Diving International (SDI) Computer Nitrox Practice Exam

What specific equipment is necessary for diving with Nitrox?

1. Specific Nitrox-rated equipment

2. Standard dive gear is sufficient

3. All equipment must be oxygen-cleaned

4. Additional weights

The correct answer is: Specific Nitrox-rated equipment

Diving with Nitrox requires specific Nitrox-rated equipment because Nitrox contains a higher percentage of oxygen compared to regular air. The increased concentration of oxygen can lead to the risk of fire or equipment degradation if standard equipment, which may not be rated for higher oxygen levels, is used. Nitrox-rated equipment is specially designed to handle the higher pressures and prevent issues related to oxygen toxicity and combustion. Standard dive gear might not take into account the requirements for higher oxygen content, and using it can compromise safety. While it's true that some components may be acceptable for use with Nitrox, it's important to ensure that any equipment in contact with higher concentrations of oxygen is designed for that purpose. Oxygen-cleaning processes may also be necessary for certain equipment, but this is a step that follows having Nitrox-rated equipment. The need for additional weights isn’t specific to diving with Nitrox, as weight requirements can vary based on individual buoyancy needs but are not inherently linked to the breathing gas used.