12 Questions
What type of soil classification system includes well-graded gravel and poorly graded gravel with sand?
Clean Gravels
Which type of soil is described as being plate-shaped and smaller than silt?
Clay
What type of foundation support is generally not recommended for buildings due to being weak and unstable?
Organic soils
In the context of earth materials, which one is generally the strongest and most stable?
Rock
For what purpose are caissons and piles drilled all the way to the bedrock?
To provide structural support
Which type of soil classification includes poorly graded sand or poorly graded sand with gravel, having little or no fines?
Clean Sands
What type of load is defined as permanent or long-term, such as a building's self-weight?
Dead load
Which soil classification system involves silty gravel, silty gravel with sand, and little or no fines?
COARSE-GRAINED SOILS - GRAVELS
What is the primary difference between a caisson and a pile in terms of their function?
Caissons are heavier in section and used for softer soils, while piles are lighter and used for harder soils.
What distinguishes organic soils from other types of soils?
They are generally weak, unstable, and not suitable for supporting building foundations.
In soil classification based on particle size, which category includes particles too small to be individually lifted between fingers?
Sand
What is the primary difference between fine-grained and coarse-grained soils?
Fine-grained soils contain silt and clay, while coarse-grained soils contain gravel and sand.
Test your knowledge on dead loads, live loads, environmental loads, superstructure, substructure, foundation of a building, and classification of earth materials by particle size, presence of organic content, and moisture content.
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