Construction Health and Safety Technician (CHST) Practice Test 2025 – All-in-One Study Guide for Exam Success!

The classification of soil types is crucial in construction and excavation work, as it directly impacts safety measures, stability assessments, and the type of protective systems required during digging activities.

Type "B" soil is indeed characterized as cohesive soil with moderate compressive strength. This classification is significant because cohesive soils, such as clays, can retain water, impacting their compressive strength and stability. Understanding that Type "B" encompasses cohesive soils with a moderate compressive strength aids construction professionals in determining the necessary precautions and support systems needed during excavation. Typically, Type "B" soils can withstand some loads but may require oversight and supportive measures to ensure safety during excavation processes.

Other options present classifications that do not align with established geotechnical definitions. For instance, Type "A" is recognized as cohesive soil with a high compressive strength, not granular soil, which helps establish a clear differentiation based on soil behavior under stress. Similarly, Type "C" generally refers to loose, granular soils with low cohesive strength, marking a distinct contrast to cohesive soils. Lastly, Type "D" does not exist in formal soil classification standards, as classifications are typically limited to recognized types like Type "A," "B," and "C," each with specific characteristics. Understanding