Heavy Equipment Operator Certification Exam Prep · Question
What is the primary characteristic that differentiates cohesionless soils from cohesive soils?
Cohesionless soils (like sand and gravel) lack particle-to-particle attraction and will collapse in a vertical cut without support. Cohesive soils (like clay an
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Question: What is the primary characteristic that differentiates cohesionless soils from cohesive soils?
Answer options:
- Particle colour ✅ Ability to maintain a stable vertical cut without support
- Organic content percentage
- Permeability to water flow
Correct answer: Ability to maintain a stable vertical cut without support
Explanation: Cohesionless soils (like sand and gravel) lack particle-to-particle attraction and will collapse in a vertical cut without support. Cohesive soils (like clay and silt) possess inter-particle attractive forces that allow them to maintain vertical cuts, at least temporarily.
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