CMP 305 Test 1 Study Guide |
Questions with 100% Correct Verified
answers
What are the different types of soil deposits? - ✔✔residual, vegetation, transported
What are residual deposits? - ✔✔formed from weathered rock or or accumulation
of organic material
What is transported deposit? - ✔✔Moved from it's origin by, wind, water, or gravity
How much does 1 cu. ft. of water weigh? - ✔✔62.4 lbs
What does specific gravity represent? - ✔✔it compares the same volume of soil
and water and determines how much heavier the soil is than that same amount of
water. specific gravity of 2.6 means that the soil is 2.6 times heavier than the same
amount of water
What are the main soil types? (3) - ✔✔Cohesive, non-cohesive, organic
What are some examples of cohesive soil? - ✔✔Clay and silt
What are the characteristics of clay? (Good and bad;5) - ✔✔low permeability,
low shear strength, plastic and compressible, expands when wet, creeps over time
, What are some properties of silt? - ✔✔Fine grained like slay, non-cohesive like
sand, high capillary action susceptible to frost action
What are some properties of non-cohesive soils? - ✔✔Sand, gravel, large load
bearing capacity, little settlement, good foundation material, easily compacted,
well drained, high shear strength
What is the purpose of classification tests? - ✔✔Determine size of particles
and percentage of particles in each of the sizes
What are the particles size distributions? (2) - ✔✔Coarse and fine
What does coarse grain consist of? - ✔✔Gravel, sand
What does fine grain consist of? - ✔✔Clay, silt
List from smallest to largest coarse grain shapes - ✔✔sand, gravel, cobble, boulder
What are the particle shapes? - ✔✔Angular, sub-angular, rounded
Angular particles properties (2) - ✔✔Higher shear strength than weathered
or smooth particles, crushed rock = engineer fill
What are the particles size tests? (2) - ✔✔Sieve, sedimentation
How does the sieve sort particles by size? - ✔✔physical sizing of material, for
coarse grained material
Questions with 100% Correct Verified
answers
What are the different types of soil deposits? - ✔✔residual, vegetation, transported
What are residual deposits? - ✔✔formed from weathered rock or or accumulation
of organic material
What is transported deposit? - ✔✔Moved from it's origin by, wind, water, or gravity
How much does 1 cu. ft. of water weigh? - ✔✔62.4 lbs
What does specific gravity represent? - ✔✔it compares the same volume of soil
and water and determines how much heavier the soil is than that same amount of
water. specific gravity of 2.6 means that the soil is 2.6 times heavier than the same
amount of water
What are the main soil types? (3) - ✔✔Cohesive, non-cohesive, organic
What are some examples of cohesive soil? - ✔✔Clay and silt
What are the characteristics of clay? (Good and bad;5) - ✔✔low permeability,
low shear strength, plastic and compressible, expands when wet, creeps over time
, What are some properties of silt? - ✔✔Fine grained like slay, non-cohesive like
sand, high capillary action susceptible to frost action
What are some properties of non-cohesive soils? - ✔✔Sand, gravel, large load
bearing capacity, little settlement, good foundation material, easily compacted,
well drained, high shear strength
What is the purpose of classification tests? - ✔✔Determine size of particles
and percentage of particles in each of the sizes
What are the particles size distributions? (2) - ✔✔Coarse and fine
What does coarse grain consist of? - ✔✔Gravel, sand
What does fine grain consist of? - ✔✔Clay, silt
List from smallest to largest coarse grain shapes - ✔✔sand, gravel, cobble, boulder
What are the particle shapes? - ✔✔Angular, sub-angular, rounded
Angular particles properties (2) - ✔✔Higher shear strength than weathered
or smooth particles, crushed rock = engineer fill
What are the particles size tests? (2) - ✔✔Sieve, sedimentation
How does the sieve sort particles by size? - ✔✔physical sizing of material, for
coarse grained material
