The lift capacity of a truck depends on which of the following factors?

The lift capacity of a truck is fundamentally influenced by its stability and the strength of the surface on which it rests. Stability is crucial because it determines how well the truck can support and balance the load being lifted. If the truck has a narrow wheel base or is not evenly loaded, it may tip over, especially under heavy lifting conditions.

The strength of the surface is equally important, as it must be able to support the weight of the truck along with the load being lifted. A weak or unstable surface can lead to sinking or shifting, which compromises safety and effectiveness.

In contrast, while maintenance history can affect overall performance and longevity of the truck, it does not directly determine its lift capacity at any given moment. Similarly, the color or age of the truck has no impact on its lifting ability, nor does the operator's experience directly change the maximum lift capacity of the truck itself. Rather, the operator’s experience might influence how safely and effectively the truck is operated within its capacity limits.