A S S I G N M E N T
13
Textbook Assignment:
“Materials Testing:
Soil and Concrete.”
pages 15-1 through 15-39.
“Administration.”
Pages 16-1 through 16-14.
13-1.
Which of the following substances
is/are enclosed by the mineral
grains in a soil mixture?
1.
Air or gases only
2.
Water only
3.
Organic matter only
4.
Voids containing air, gases,
water, and organic matter or
any combination of these
13-2.
Rock is classified into how many
13-3.
13-4.
groups?
1.
One
2.
Two
3.
Three
4.
Four
What type of rock is formed from
the accumulation and cementing of
plant and animal remains?
1.
Metamorphic
2.
Sedimentary
3.
Igneous
4.
Organic
By what process are residual and
transported soils formed?
1.
Disintegration
2.
Weathering
3.
Decomposition
4.
Atmospheric exposure
IN ANSWERING QUESTIONS 13-5 THROUGH 13-7,
SELECT THE KEY WORDS OR PHRASES THAT BEST
MATCHES THE TYPE OF SOIL LISTED.
A.
FRESHWATER LAKE
B.
ESKERS
c.
LOESS
D.
IN-PLACE WEATHERING
13-5.
Residual soil.
1. A
2. B
3. C
4. D
13-6.
Lacustrine soil.
1. A
2. B
3. C
4. D
13-7.
Glacial soil.
1. A
2. B
3. C
4. D
13-8.
According to the Unified Soil
Classification System, materials
retained on the No. 200 sieve and
passing the No. 4 sieve are
classified as
1.
coarse grained
2.
sands
3.
fines
4.
medium fines
13-9.
Which of the following bulky
particle shapes is considered to
be the most desirable for
construction purposes because of
its interlocking characteristic?
1.
Rounded
2.
Subrounded
3.
Subangular
4.
Angular
13-10.
A well-graded soil consists of
which of the following particle
sizes?
1.
Only intermediate sizes
2.
Large and small sizes only
3.
Uniformly graded sizes
4.
A good representation of all
sizes
13-11.
A well-graded soil provides which
of the following conditions?
1.
Maximum displacement of
particles
2.
Maximum density and stability
of particles
3.
Minimum displacement of voids
4.
Each of the above
13-12.
In most inorganic soils, the
specific gravity of the solid
substance has what minimum to
maximum range?
1.
2.60 and 2.65
2.
2.60 and 2.80
3.
2.65 and 3.00
4.
3.00 and 3.50
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