What does soil compaction help improve?
A Permeability
B Soil strength
C Soil moisture
D Soil shrinkage
What is a major characteristic of sandy soils?
A High permeability
B High plasticity
C Low permeability
D High swelling potential
Which test is used to determine the plasticity of fine-grained soils?
A Proctor test
B CBR test
C Triaxial test
D Atterberg limits test
What is the primary effect of soil erosion?
A Soil becomes more compacted
B Soil structure strengthens
C Loss of topsoil
D Increased soil fertility
What is the purpose of the triaxial test?
A Measure soil permeability
B Measure shear strength
C Assess soil compaction
D Determine soil moisture
What does effective stress in soil affect?
A Soil strength
B Permeability
C Soil shrinkage
D Soil moisture content
What is the primary concern of slope stability?
A Soil compaction
B Soil permeability
C Soil erosion
D Soil strength and failure
What is the purpose of soil sampling?
A To test for soil contamination
B To measure soil erosion
C To obtain soil characteristics for analysis
D To determine soil color
What does the CBR test measure?
A Soil’s resistance to penetration
B Soil’s shear strength
C Soil’s permeability
D Soil’s plasticity
What is the role of geotextiles in soil mechanics?
A Prevent water seepage
B Enhance soil strength
C Prevent erosion and improve drainage
D Increase plasticity
What does consolidation in soil refer to?
A Soil drying
B Decrease in soil volume under load
C Soil shrinkage due to moisture loss
D Increase in water retention
What is the main feature of swelling soils?
A They shrink when dry
B They are impermeable
C They have high shear strength
D They expand when wet
What does the plate load test measure?
A Soil permeability
B Soil compaction
C Bearing capacity of soil
D Soil shrinkage
What is the purpose of the direct shear test?
A Measure compaction
B Measure shear strength
C Determine moisture content
D Measure soil permeability
What is the effect of high plasticity in soil?
A Greater workability and molding
B Increased permeability
C Increased shear strength
D Greater ability to retain moisture