What is the recommended practice when positioned on lateral uneven terrain?

When positioned on lateral uneven terrain, the recommended practice is to lower stabilizers on the uphill side first. This approach is crucial for maintaining stability and preventing the apparatus from tipping over. By stabilizing the uphill side initially, the equipment can create a more balanced base, which counteracts the gravitational forces acting on the fire apparatus.

Starting with the uphill side also helps distribute weight evenly as the stabilizers are deployed, ensuring that the vehicle does not shift unexpectedly while stabilizing the downhill side. This method enhances safety for both the apparatus and personnel operating it, especially in scenarios where the terrain is significantly sloped.

The other options do not provide the same level of safety and effectiveness when dealing with uneven terrain. For instance, simultaneously lowering stabilizers can lead to an imbalance, increasing the risk of tipping. Lowering the downhill side first would exacerbate the instability, and not using stabilizers at all could result in the apparatus shifting or rolling, posing a danger to those nearby.