Fundamentals of Geotechnical Engineering (MindTap Course List)
5th Edition
ISBN: 9781305635180
Author: Braja M. Das, Nagaratnam Sivakugan
Publisher: Cengage Learning
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Concept explainers
Question
Chapter 2, Problem 2.1P
(a)
To determine
Whether the statement “Aeolian soils are transported and deposited by wind” is true or false.
(a)
Expert Solution
Answer to Problem 2.1P
The statement “Aeolian soils are transported and deposited by wind” is true.
Explanation of Solution
- • The classification of soil is based on the transportation. Aeolian soils consist of sand or silt sized particles.
- • This type of soil is normally transferred from one place to another place through the wind. Soils are divided into groups based on their mode of transportation.
Hence, the statement is True.
(b)
To determine
Whether the statement “Marble is an igneous rock” is true or false.
(b)
Expert Solution
Answer to Problem 2.1P
The statement “Marble is an igneous rock” is false.
Explanation of Solution
- • Marble is a metamorphic rock that forms when limestone is subjected to heat and pressure from all sides.so, marble are not classified as an igneous rock.
Hence, the statement is False.
(c)
To determine
Whether the statement “Sandstone is a sedimentary rock” is true or false.
(c)
Expert Solution
Answer to Problem 2.1P
The statement “Sandstone is a sedimentary rock” is true.
Explanation of Solution
- • Sandstone is a clastic sedimentary rock.
- • It’s composed of rock, organic material, and sand size grains of mineral.
Hence, the statement is True.
(d)
To determine
Whether the statement “Silts have no plasticity” is true or false.
(d)
Expert Solution
Answer to Problem 2.1P
The statement “Silts have no plasticity” is true.
Explanation of Solution
- • It is termed as very fine particles of sand, and it is carried by moving water and deposited as sediment.
- • The particles of silt are very fine and it does not have plasticity at all.
Hence, the statement is True.
(e)
To determine
Whether the statement “
(e)
Expert Solution
Answer to Problem 2.1P
The statement “
Explanation of Solution
- •
- • The soil
Hence, the statement is True.
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Students have asked these similar questions
11. The range of water content between the liquid and plastic
limits is termed as:
A. liquid limit
B. plasticity index
C. plastic limit
D. shrinkage limit
12. A container of volume 3.25 x 10-3 m³ weighs 10.8 N. Dry sand
was poured to fill the container. The container and the sand
weigh 62.5 N. Calculate the porosity of the sand. Assume Gs =
2.72.
A. 67.74%
C. 43.56%
B. 40.38% 0 mod
D. 54.25%
Determine the following:
a.) %F2,F3,F4,F5,F6,F7,F8
Assuming that D60 = 0.297; D30 = 0.172; D10 = 0.151
b.) calculate Cu and Cc
Situation. Given the size particle distribution of the soil, solve for the modified percentage of sand, silt, and clay.
Gravel=24%
Sand= 35%
Silt= 25%
Clay= 16%
A
46%, 33%, 21%
B
40%, 35%, 35%
42%, 33%, 25%
D
38%, 33%, 29%
Chapter 2 Solutions
Fundamentals of Geotechnical Engineering (MindTap Course List)
Ch. 2 - Prob. 2.1PCh. 2 - Following are the results of a sieve analysis: a....Ch. 2 - For a soil, given: D10 = 0.08 mm D30 = 0.22 mm D60...Ch. 2 - For a soil, given: D10 = 0.08 mm D30 = 0.22 mm D60...Ch. 2 - Repeat Problem 2.2 with the following results of a...Ch. 2 - Repeat Problem 2.2 with the following results of a...Ch. 2 - The particle characteristics of a soil are given...Ch. 2 - Redo Problem 2.7 according to the USDA system...Ch. 2 - Redo Problem 2.7 according to the AASHTO system...Ch. 2 - In a hydrometer test, the results are as follows:...
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