3-13.
13-14.
13-15.
13-16.
13-17.
In which of the following ways can
water enter a layer of soil mass?
1.
By gravitational pull
2.
By capillary action
3.
By absorption
4.
Each of the above
When soil is subjected to loading,
what soil property has the
greatest effect upon its behavior?
1.
Specific gravity
2.
Moisture content
3.
Gradation
4.
Plastic and liquid limits
Which of the following
descriptions best defines the term
“hygroscopic moisture”? (Hint:
Your textbook contains a
glossary. )
1.
Soil water absorbed by the
atmosphere
2.
Absorbed moisture in soil at
any time
3.
Adsorbed moisture in air-dried
soil
4.
Thin films of water that
freely move through soil
The term “moisture content” refers
to which of the following factors?
1.
The amount of free water in a
soil sample
2.
The proportion of the weight
of water to the weight of wet
soil expressed as a percentage
3.
The amount of hydroscopic
moisture in a soil sample
4.
The proportion of the weight
of water to the weight of dry
soil expressed as a percentage
Which of the following properties
of a fine-grained soil permits
clay to be rolled into thin
threads at a certain moisture
content without crumbling?
1.
Liquidity
2.
Plasticity
3.
Cohesiveness
4.
Consistency
IN ANSWERING QUESTIONS 13-18 THROUGH
13-20, SELECT THE TERM THE THAT BEST
MATCHES THE DESCRIPTION LISTED.
13-18.
The boundary in moisture content
between the solid and semisolid
state of the soil.
1. A
2. B
3. C
4. D
13-19.
The moisture content corresponding
13-20.
13-21.
13-22.
13-23.
to the arbitrary limit between the
liquid and plastic states of
consistency of a soil.
1. A
2. B
3. C
4. D
The moisture content at the
arbitrary limit between the
plastic and semisolid state of a
soil .
1. A
2. B
3. C
4. D
Which of the following
constructions would be least
affected by soil moisture?
1.
An asphaltic-cement road laid
on a sand-clay admixture
2.
A concrete building foundation
laid on a base of fine-grained
soil
3.
A concrete building foundation
laid on a gravel base
4.
An asphaltic-cement runway
laid on a gravel-clay
admixture
In the Unified Soil Classification
System, what category of soil is
identified by the presence of
large amounts of organic material?
1.
Coarse grained
2.
Fine grained
3.
Peat
4.
Sand
When less than half of the coarse
portion of a soil sample is
retained on a No. 4 sieve, the
sample is classified as what type
of soil?
1.
Sand
2.
Gravel
3.
Silt
4.
Clay
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