Which of the following is not one of the EP's briefed in a SCUBA dive?

The emergency procedures (EPs) briefed in a SCUBA dive are crucial for ensuring the safety of divers. Each scenario addressed in the briefing prepares divers to react appropriately to various unforeseen events that may occur underwater.

In this context, equipment failure is often handled as a part of general dive planning and equipment checks rather than a specific emergency procedure briefed in detail. While divers need to be aware of how to manage equipment failure — such as using buddy systems, monitoring air supply, and addressing minor issues during the dive — it is less likely to be categorized as an emergency procedure in the same way as the other scenarios.

On the other hand, handling a lost diver, a trapped diver, or an unconscious diver are specific situations that require immediate and clearly defined responses in order to ensure the safety of all divers involved. These scenarios are typically covered in depth during pre-dive briefings to prepare divers for rapid and effective action in critical situations.