What is the primary function of a bulldozer?

The primary function of a bulldozer is to move large quantities of earth and grade surfaces. Bulldozers are equipped with a wide, heavy blade at the front, which is specifically designed to push dirt, debris, and other materials. This capability makes them ideal for numerous applications, such as construction, mining, and land clearing, where shaping the terrain and preparing it for further development is crucial. Additionally, bulldozers can effectively level surfaces, ensuring that they are suitable for laying foundations, building roads, or establishing landscaping.

While hydraulic power is significant in the operation of various heavy machinery, and some bulldozers may utilize hydraulic systems for specific functions, this is not the bulldozer's primary role. The transportation of materials across job sites falls under the function of other equipment, such as trucks or loaders. Drilling holes for foundations is typically the domain of drilling equipment or augers, which serve a different purpose than earth-moving machinery like bulldozers. Thus, the focus on the bulldozer’s capability to move and grade earth highlights why this choice is the most accurate description of its primary function.