Test: Soil Types & Formations


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10 Questions MCQ Test GATE Civil Engineering (CE) 2023 Mock Test Series | Test: Soil Types & Formations

Test: Soil Types & Formations for Civil Engineering (CE) 2022 is part of GATE Civil Engineering (CE) 2023 Mock Test Series preparation. The Test: Soil Types & Formations questions and answers have been prepared according to the Civil Engineering (CE) exam syllabus.The Test: Soil Types & Formations MCQs are made for Civil Engineering (CE) 2022 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Soil Types & Formations below.
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Test: Soil Types & Formations - Question 1

Match List-I (Soil description) with List-ll (Coefficient of permeability, mm/s) and select the correct answer using the codes given below the lists:
List-I
A. Gravel
B. Clay silt admixtures
C. Loess
D. Homogeneous clays
List-II

Detailed Solution for Test: Soil Types & Formations - Question 1

Permeability of Gravel (>1) > Sand (10-2 – 10-4) > Silt (10-4 – 10-6) > Clay (< 10-6)

Test: Soil Types & Formations - Question 2

Match List-I with List-ll and select the correct answer using the codes given below the lists:
List-I  
A. Loess 
B. Peat 
C. Alluvial soil 
D. Marl 

List-ll
1. Deposited from suspension in running water
2. Deposits of marine origin
3. Deposits by wind
4. Organic soil

Detailed Solution for Test: Soil Types & Formations - Question 2

Correct Answer :- d

Explanation : a) Loess is a deposit of wind-blown silt that blankets large areas of the continents. It is often light brown in color, consisting predominantly of quartz, feldspars, micas, and calcium carbonate.

b) Soil scientists define peat as organic soil with organic content of greater than 35%. To a geotechnical engineer, however, all0 soils with an organic content of greater than 20% are known as organic soil, while “peat” is an organic soil with organic content of more than 75%.

c) Soils deposited in riverbeds are known as alluvial deposits.The size of particles deposited in riverbeds depends on the speed of flow. If the flow of a river is strong, only large cobble-type material can get deposited.

d) Marl or marlstone is a carbonate-rich mud or mudstone which contains variable amounts of clays and silt. The term was originally loosely applied to a variety of materials, most of which occur as loose, earthy deposits consisting chiefly of an intimate mixture of clay and calcium carbonate, formed under freshwater conditions. These typically contain 35–65% clay and 65–35% carbonate.The term is today often used to describe indurated marine deposits and lacustrine (lake) sediments which more accurately should be named 'marlstone'

Test: Soil Types & Formations - Question 3

Which of the following type of soil is transported by gravitational forces?

Detailed Solution for Test: Soil Types & Formations - Question 3

Soil carried and deposited by river water are alluvial soils. Deposits made in lakes are lacustrine deposits. Wind transported soil are aeolian deposits. Drift is a general term used for the deposits made by glaciers. Deposits directly made by melting of glaciers are called till. Talus are colluvial soil deposited by gravity.

Test: Soil Types & Formations - Question 4

According to IS classification, the range of silt size particles is:

Detailed Solution for Test: Soil Types & Formations - Question 4

Test: Soil Types & Formations - Question 5

Match
List-I (Type of soil) with List-ll (Feature) and select the correct answer using the codes given below the lists:
List-I                                                   
A. Lacustrine                
B. Alluvial                     
C. Aeolian                     
D. Marine                      

List-ll 
1. Transported by wind
2. Transported by running water
3. Deposited at the bottom of lakes
4. Deposited in seawater

Detailed Solution for Test: Soil Types & Formations - Question 5

Lacustrine-Deposited at the bottom of lakes
Alluvial - Transported by running water
Aeolian - Transported by wind
Marine - Deposited in sea water

Test: Soil Types & Formations - Question 6

Match List-I (Range of particle size) with List-II (Type of soil) and select the correct answer using the codes given below the lists:

Detailed Solution for Test: Soil Types & Formations - Question 6

According to IS grain-size classification 

Test: Soil Types & Formations - Question 7

The correct increasing order of specific surface i.e. surface area per mass of the given soils is: 

Test: Soil Types & Formations - Question 8

Consider the following statements in the context of aeolian soils:
1. The soil has low density and low compressibility.
2. The soil is deposited by wind.
3. The soil has large permeability.
Which of these statements are correct?

Detailed Solution for Test: Soil Types & Formations - Question 8

Aeolian soil is a soil which is transported by wind and is mostly sand, thus, has high permeability.

Test: Soil Types & Formations - Question 9

The collapsible soil is associated with

Detailed Solution for Test: Soil Types & Formations - Question 9

Collapsible soil is mainly a clayey silt also known as loess.

Test: Soil Types & Formations - Question 10

Bentonite is a material obtained due to the weathering of

Detailed Solution for Test: Soil Types & Formations - Question 10

Bentonite is decomposed volcanic ash containing high percentage of clay mineral-montmorillonite.

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