Podcast
Questions and Answers
What is the main difference between sand and clay soils?
What is the main difference between sand and clay soils?
- Clay soils have greater influence on soil properties than sand soils (correct)
- Clay soils have larger voids between particles than sand soils
- Sand soils can shift and slide when wet while clay soils cannot
- Sand soils retain more water than clay soils
Why can soils high in silt present problems for engineers?
Why can soils high in silt present problems for engineers?
- They are chemically active and can greatly influence soil properties
- They tend to have moderately slow to slow permeabilities
- They will shift under stress and slide and flow when wet (correct)
- They have large voids between particles and can readily transport water and air
What is the most accurate way to determine the texture of soil?
What is the most accurate way to determine the texture of soil?
- By measuring the pH level of the soil
- By observing the color and smell of the soil
- By estimating the texture by feel using hands
- By using laboratory techniques that can determine the exact amount of sand, silt, and clay (correct)
Flashcards
Sand vs. Clay Soils
Sand vs. Clay Soils
Clay soils exert a more significant influence on soil properties compared to sandy soils due to their finer particle size and higher water-holding capacity.
Silt Soil Problems
Silt Soil Problems
Soils with a high silt content are prone to shifting under stress and can become unstable, leading to sliding and flowing when saturated with water.
Accurate Soil Texture
Accurate Soil Texture
The most precise method involves laboratory analysis to quantify the proportions of sand, silt, and clay, providing an accurate soil texture classification.
