What is the primary purpose of soil sampling?
A Determine color
B Analyze soil properties
C Analyze soil texture
D Measure permeability
What does bearing capacity of soil refer to?
A Maximum soil density
B Soil’s ability to resist deformation
C Soil’s resistance to penetration
D Maximum load soil can support
What is effective stress in soils?
A Total stress minus pore water pressure
B Total stress
C Pore water pressure
D Shear strength
What is the primary cause of slope instability?
A High permeability
B Low plasticity
C Excessive water content
D Low shear strength
What does the Standard Proctor test measure?
A Shear strength
B Soil moisture
C Permeability
D Optimum moisture for compaction
Which test is used to determine the shear strength of soil?
A CBR test
B Triaxial test
C Plate load test
D Proctor test
What is soil stabilization used for?
A Improve soil strength
B Increase permeability
C Reduce volume
D Measure compaction
What does soil permeability refer to?
A Soil’s ability to retain moisture
B Soil’s resistance to compaction
C Soil’s ability to allow water to pass
D Soil’s resistance to erosion
What is the purpose of a plate load test?
A Assess bearing capacity
B Measure shear strength
C Test soil consolidation
D Measure soil permeability
What is one effect of compaction on soil?
A Decreases shear strength
B Increases soil strength
C Increases volume
D Reduces moisture content
What is the primary effect of soil erosion?
A Increased soil strength
B Increased soil moisture
C Improved soil stability
D Loss of topsoil
What does the CBR test measure?
A Shear strength
B Soil compaction
C Bearing capacity
D Soil plasticity
What is the role of geotextiles in soil?
A Enhance soil plasticity
B Control erosion and improve drainage
C Increase soil strength
D Reduce water retention
What is one common cause of soil liquefaction?
A Earthquake-induced shaking
B Excessive moisture content
C Soil freezing
D Lack of compaction
What does the Atterberg limits test determine?
A Soil permeability
B Soil moisture
C Plasticity of fine-grained soils
D Soil density