Geotechnical Engineering

Soils

Question 1
Marks : +2 | -2
Pass Ratio : 100%
In particle size classification system, the soils are classified according to __________
Grain size
Properties
Shape
Solubility
Explanation:
In the particle soil classification system, soils are arranged to the grain size.
Question 2
Marks : +2 | -2
Pass Ratio : 100%
The type of triangle, used in textural classification of soil is _____________
Right angled triangle
Equilateral triangle
Perpendicular triangle
None of the mentioned
Explanation:
A triangle, having equal length of sides (i.e. Equilateral triangle) is used in textural classification chart.
Question 3
Marks : +2 | -2
Pass Ratio : 100%
Soil classification based on the particle size distribution is _____________
Unified soil classification
IS classification
Particle size classification
Textural classification
Explanation:
Soil classification of composite soils exclusively based on the particle size distribution is known as textural classification.
Question 4
Marks : +2 | -2
Pass Ratio : 100%
Public road administration (PRA) system is based on _____________
Particle-size composition and Plasticity characteristics
Particle size distribution
All of the mentioned
None of the mentioned
Explanation:
HRB classification system, also known as public road administration (PRA) is based on both the particle-size composition and plasticity characteristics.
Question 5
Marks : +2 | -2
Pass Ratio : 100%
Particle size classification is best suited for _________
Coarse grained soil
Clay soil
Dry soil
All of the mentioned
Explanation:
Since properties of clay soils is less dependent on particle size distrubution(textural classification) and more dependent on size it is best suited for clay soil.
Question 6
Marks : +2 | -2
Pass Ratio : 100%
The performance of the soil, when used for pavement construction is found out by using _____________
Quality test
Group index
Material test
None of the mentioned
Explanation:
As group index is a mean of rating the value of soil as a sub-grade material. It can be used for finding the performance and quality of the soil.
Question 7
Marks : +2 | -2
Pass Ratio : 100%
The best known classification system in textural classification is __________
M.I.T. classification system
Triangular classification of U.S. public road administration
Indian classification system
International classification
Explanation:
Triangular classification of U.S. public road administration is a commonly used system for textural classification.
Question 8
Marks : +2 | -2
Pass Ratio : 100%
The purpose of soil classification is to ___________
To arrange various soils types in to groups
To use it for various purpose
For finding its properties
For investigating the soil
Explanation:
The purpose of soil classification is to arrange various types of soils in to groups according to their engineering or agricultural properties.
Question 9
Marks : +2 | -2
Pass Ratio : 100%
Systems which are used for classification of soil based on particle size are __________
PRA system of united states
Indian standard classification system
International soil classification
All of the mentioned
Explanation:
Based on particle size, soil can be classified as
Question 10
Marks : +2 | -2
Pass Ratio : 100%
Based on HRB classification system, the soil are divided in to ___________
2 primary groups
6 primary groups
7 primary groups
6 primary groups
Explanation:
Based on HRB system, the soil is divided into 7 primary groups, designated as A-1, A-2…A-7.