Ontario Office of the Fire Marshal (OFM) NFPA Technical Rescue (NFPA 1006) Written Practice Exam

A load-sharing anchor must never exceed 120 degrees to maintain effective load distribution and ensure safety during technical rescue operations. When the angle between the anchors increases beyond this degree, the forces acting on the anchors can lead to significantly increased loads. At angles greater than 120 degrees, the tension in the anchors can increase dramatically, which can destabilize the system and pose risks to both the rescuers and the individuals they are attempting to rescue. The 120-degree maximum is established based on principles of physics and engineering that dictate how forces are shared among multiple anchor points in a rescue scenario. Keeping the angle within this limit helps ensure a more balanced load distribution, enhancing the overall integrity and safety of the rescue system.