Metro Institute WDI Termite Training Practice Test

The primary cause of faulty grade that can lead to structural issues is when water collects. Proper grading around a structure directs water away from the foundation. If the grading is incorrect and water accumulates close to or against a building’s foundation, it can lead to various problems, such as soil erosion, increased hydrostatic pressure, and even flooding in basements and crawl spaces. Over time, this excess moisture can weaken the foundation, leading to cracks, shifting, and other significant structural issues.

The other options, while they might be related to structural integrity, do not directly describe grading issues. Uneven flooring is often a symptom of structural problems rather than a cause of faulty grade. Pests in the soil and high ceilings do not directly relate to grading and water management issues that affect how water flows around a structure. Proper grading is crucial for preventing water accumulation, which in turn protects the integrity of the building's foundation.