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Heavy Equipment Operator Certification Exam Prep · Question

In the context of earthmoving, what does 'compaction' refer to?

Compaction is the act of applying mechanical energy to soil to reduce air voids, thereby increasing its density, strength, and load-bearing capacity. This is cr

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Question: In the context of earthmoving, what does 'compaction' refer to?

Answer options:

  • The process of breaking up hard soil.
  • The process of removing vegetation from a site. ✅ The process of increasing the density of soil by reducing air voids.
  • The process of adding water to soil to make it easier to work with.

Correct answer: The process of increasing the density of soil by reducing air voids.

Explanation: Compaction is the act of applying mechanical energy to soil to reduce air voids, thereby increasing its density, strength, and load-bearing capacity. This is critical for stable foundations.

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