What is the tensile strength of the Kendricks extrication device, litter, and sked rescue system?

The tensile strength of the Kendricks extrication device, litter, and sked rescue system being 400 lbs indicates that these systems are designed to safely support and carry loads up to that weight without failure. This level of tensile strength is critical for ensuring the safety of both the patient being transported and the personnel handling the equipment. It reflects the materials and manufacturing processes used in creating these rescue devices, allowing them to sustain substantial forces during extrication operations. Having equipment with adequate tensile strength is essential in emergency situations where personnel may need to quickly and effectively move individuals out of harm's way, ensuring reliability and safety during rescues.

While the other options represent lower tensile strengths, they do not meet the requirement for secure extrication operations where durability and the capacity to handle unexpected forces is necessary. Thus, 400 lbs stands out as the appropriate figure for the effectiveness and safety of these rescue systems.