SDI Open Water Scuba Diver Practice Exam 2025 - Free Scuba Diver Practice Questions and Study Guide

Question: 1 / 400

Why is it important to monitor your buoyancy during ascent?

To avoid getting tired

To ensure a controlled and safe ascent

Monitoring buoyancy during ascent is crucial for ensuring a controlled and safe ascent. When a diver ascends too quickly, the decrease in water pressure can cause nitrogen bubbles to form in the body, leading to decompression sickness, commonly known as "the bends." By managing buoyancy effectively, divers can ascend at a safe rate, typically not exceeding 30 feet per minute, which allows for the safe release of gases trapped in the body.

Additionally, stable buoyancy improves overall control, helping divers maintain their position in the water column, avoid rapid ascents that may lead to injury, and lessen the risk of surfacing too quickly. This aspect of buoyancy control is fundamental in preventing unwanted incidents during diving, thus enhancing overall safety and enjoyment of the dive.

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To help control breathing rate

To maintain visibility in the water

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