PADI Divemaster Certification Practice Exam

What is the proper procedure for adjusting a lift bag during an ascent?

1. Pull sharply to confirm ascent

2. Slowly add air as you pull up gently

3. Wait for the object to become neutral

4. Release the bag when the object is marked

The correct answer is: Slowly add air as you pull up gently

The proper procedure for adjusting a lift bag during an ascent involves slowly adding air while gently pulling up. This method allows for controlled ascent and buoyancy management, which is crucial in preventing rapid ascents that can lead to decompression sickness or equipment failure. When you add air gradually, you can fine-tune the lift provided by the bag to match the buoyancy of the object you are trying to lift. This careful adjustment helps maintain a safe and stable ascent rate, minimizing the risks associated with ascending too quickly. In contrast, pulling sharply to confirm ascent may introduce too much force, which can cause sudden changes in buoyancy and may lead to uncontrolled ascents. Waiting for the object to become neutral is not practical because it may lead to delayed ascent and increase the likelihood of complications. Releasing the bag when the object is marked can also compromise safety, as it may result in losing control of the ascent process.