SDI Open Water Scuba Diver Practice Exam 2026 – Complete Test Prep

The full scuba gear system comprises several essential components that work together to ensure a safe and enjoyable diving experience. The correct choice includes the tank, regulator, buoyancy control device (BCD), weights, wetsuit or drysuit, mask, and fins. Each of these items plays a critical role in the diving process.

The tank contains the compressed air necessary for underwater breathing, while the regulator allows divers to inhale this air at a pressure suitable for safe use. The BCD is vital for managing buoyancy underwater, enabling divers to float at the surface, ascend, or descend by adding or releasing air. Weights help counteract the buoyancy of the wetsuit or drysuit and the air in the tank, helping the diver maintain the desired depth. The wetsuit or drysuit provides thermal protection, essential for comfort in colder water. Finally, the mask allows divers to see clearly underwater, and fins provide propulsion, allowing movement through the water.

In contrast, the other options include combinations that do not encompass all the necessary components for a full scuba system. For example, one includes a dive computer, which is an important tool but not essential equipment for every diver, and another lists items that are more suitable for snorkeling than diving. Thus