Red Seal Agricultural Equipment Technician Practice Exam

What type of machinery is often utilized for soil compaction?

1. Rotary tiller

2. Disc harrow

3. Roller compactors

4. Seeders

The correct answer is: Roller compactors

Roller compactors are specifically designed to compact soil, which is essential for many agricultural practices. These machines achieve soil density and reduce air pockets through the application of pressure, which enhances the soil structure and improves its ability to support plant growth. Proper compaction also reduces the risk of erosion and aids in effective water management within the soil. In contrast, a rotary tiller is used primarily for breaking up and aerating soil rather than compacting it. A disc harrow is designed to break up clumps of soil and mix in organic matter but does not serve the purpose of compaction. Lastly, seeders are focused on planting seeds in the soil and do not have the functionality needed to compact soil. Therefore, roller compactors are the appropriate choice for soil compaction in agricultural practices.