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

In low-angle evacuations, the dynamics of movement and support for the patient in a litter differ significantly from vertical or higher-angle scenarios. One characteristic of low-angle evacuations is that the litter is primarily supported by the ground with the litter tenders aiding in maintaining stability while they maneuver the litter. This allows for safer transport of the patient with a lower risk of falls compared to steeper angles.

Typically, a combination of litter tenders and possibly a rope rescue system is employed to help stabilize and transport the litter smoothly along a low angle. The use of ropes can assist in controlling the descent or movement, making it easier for the tenders to manage the load.

While the answer involves the use of "at most, two litter tenders," low-angle evacuations can effectively utilize more than two tenders depending on the situation, the mechanics of the area, and the patient’s conditions. In practice, more tenders may be involved to provide additional manpower and control, especially in challenging terrain. Therefore, the statement that suggests a limit of two litter tenders does not align with the flexibility and adaptability that is often necessary in low-angle evacuations.