Civil Engineering – Chapter 3 (Soil Mechanics) Questions
& Answers 13th edition 2025-2026
What is soil mechanics?
It is the study of the behavior of soil under different conditions.
What is soil?
Natural material formed from weathered rock and organic matter.
What are the main types of soil?
Sand, silt, clay, and gravel.
What is rock weathering?
Breakdown of rocks into soil particles.
What is residual soil?
Soil formed at the same place from rock weathering.
What is transported soil?
Soil moved from its original place by wind, water, or ice.
What is particle size distribution?
Distribution of different soil particle sizes.
What is sieve analysis?
A test to determine grain size distribution of soil.
What is hydrometer analysis?
Test used for fine-grained soils like clay and silt.
What is Atterberg limits?
Tests to determine consistency limits of soil.
What is liquid limit?
Water content at which soil behaves like a liquid.
, What is plastic limit?
Water content at which soil becomes plastic.
What is shrinkage limit?
Water content below which soil does not shrink.
What is plasticity index?
Difference between liquid limit and plastic limit.
What is soil classification?
Grouping soils based on properties.
What is unified soil classification system?
A system used to classify soil types.
What is AASHTO soil classification?
System used for highway engineering soils.
What is grain size?
Size of individual soil particles.
What is gravel?
Coarse soil particles larger than sand.
What is sand?
Medium-sized soil particles.
What is silt?
Fine particles smaller than sand.
What is clay?
Very fine particles with high plasticity.
What is soil structure?
Arrangement of soil particles.
What is soil texture?
Proportion of sand, silt, and clay.
& Answers 13th edition 2025-2026
What is soil mechanics?
It is the study of the behavior of soil under different conditions.
What is soil?
Natural material formed from weathered rock and organic matter.
What are the main types of soil?
Sand, silt, clay, and gravel.
What is rock weathering?
Breakdown of rocks into soil particles.
What is residual soil?
Soil formed at the same place from rock weathering.
What is transported soil?
Soil moved from its original place by wind, water, or ice.
What is particle size distribution?
Distribution of different soil particle sizes.
What is sieve analysis?
A test to determine grain size distribution of soil.
What is hydrometer analysis?
Test used for fine-grained soils like clay and silt.
What is Atterberg limits?
Tests to determine consistency limits of soil.
What is liquid limit?
Water content at which soil behaves like a liquid.
, What is plastic limit?
Water content at which soil becomes plastic.
What is shrinkage limit?
Water content below which soil does not shrink.
What is plasticity index?
Difference between liquid limit and plastic limit.
What is soil classification?
Grouping soils based on properties.
What is unified soil classification system?
A system used to classify soil types.
What is AASHTO soil classification?
System used for highway engineering soils.
What is grain size?
Size of individual soil particles.
What is gravel?
Coarse soil particles larger than sand.
What is sand?
Medium-sized soil particles.
What is silt?
Fine particles smaller than sand.
What is clay?
Very fine particles with high plasticity.
What is soil structure?
Arrangement of soil particles.
What is soil texture?
Proportion of sand, silt, and clay.
