ICC SOILS CARDS REVIEW PACK 2026 PREMIUM ANSWER COLLECTION

ICC SOILS CARDS REVIEW PACK 2026
PREMIUM ANSWER COLLECTION

◉ ____is the most effective, economical and widely used methods of
soil improvement and densification.
Answer: Compaction


◉ The purpose of compaction is to:
.
Answer: lower soil permeability
- lower soil compressibility and minimize settlement
- increase the strength or bearing capacity of soils.
- improve resistance to erosion


◉ There are two compaction tests routinely carried out in the lab to
obtain the maximum dry density and optimum moisture content of
soils
Answer: Standard Proctor Test
Modified Proctor test


◉ Solid consists of
Answer: solid particles, air, and water

,◉ Types of weathering
Answer: Physical and chemical


◉ Physical weathering
Answer: erosion from freeze & thaw, abrasion from glaciers, activity
of plants and animals


◉ Chemical weathering
Answer: Decomposition due to oxidation, reduction, carbonation
and other chemical processes


◉ List different methods of transporting soil
Answer: Glaciers, moving water, wind, settling out in salt water,
settling out in fresh water, due to gravity movement downslope


◉ Classifications of soil by particle size
Answer: Boulder, cobble, gravel, sand, silt and clay


◉ Boudler ____ mm
Answer: >200

, ◉ Cobble ____mm
Answer: 60-200


◉ Gravel ____mm
Answer: 2-60


◉ Sand ___mm
Answer: 0.075mm-2mm


◉ Silt ____mm
Answer: 0.002 to 0.075mm


◉ Clay _____mm
Answer: <0.002 mm


◉ Coarse grained
Answer: cohesionless soils such as gravel and sand


◉ Fine grained
Answer: Cohesive soils such as silt and clay


◉ Organic solid contains