
Soil Mechanics ch.3

Quiz
•
Geography
•
Professional Development
•
Easy
Rob Marq
Used 13+ times
FREE Resource
8 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which type of Proctor uses a 10-lb hammer and an 18-in. drop?
The original Proctor proposed by R.R. Proctor
.The modified Proctor (ASTM D1557)
The standard Proctor (ASTM D698)
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In ASTM D1557 method A, what size screen is the material sieved through?
#200
#40
.#4
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Optimum moisture is the point that:
A sandy soil should be screened across the #4 sieve
A fine-grained soil becomes liquid
.Soil will compact best in both the field and laboratory
No more water can be retained in a soil
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A 40% solution of sodium hexametaphosphate is used to:
Remove dry soil from dirty sieves
Break down adhesion of noncohesive soils
.Soften and break down the adhesion of cohesive soils
None of the above
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The hydrometer analysis is used to determine the particle-size distribution of:
Sand, clay, and silt
Sand and colloids
.Material finer than the #20 sieve
None of the above
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Hydrometer readings should always be taken at the top of the meniscus.
.True
False
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A sample that cannot be rolled smaller than 1/8 in. without crumbling is to be considered:
CL/ML (per the liquid limit and plasticity graph)
Medium plastic
.Nonplastic
To have a high liquid limit
8.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
PI = LL – PL.
.True
False
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