Geotechnical Engineering

Soils

Question 1
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 2
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 3
Marks : +2 | -2
Pass Ratio : 100%
For engineering purpose, soil can be classified in terms of ___________
Particle size
Textural
Unified soil
All of the mentioned
Explanation:
For general engineering purposes, soil can be classified in terms of particle size, textural and unified soil.
Question 4
Marks : +2 | -2
Pass Ratio : 100%
Soil occurring in nature, is composed of __________
Sand
Decomposed substance
All of the mentioned
None of the mentioned
Explanation:
Soil occurring in nature is composed of a different percentage of sand, silt, and clay size particles.
Question 5
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 6
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 7
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 8
Marks : +2 | -2
Pass Ratio : 100%
The term ‘silt’ in particle size classification system, can be replaced by ___________
Silt size
Clay size
Silt type
None of the mentioned
Explanation:
As the system is classified based on size, it is preferable to use the word ‘silt size’ and ‘clay size’ in place of simply ‘silt’ or ‘clay’.
Question 9
Marks : +2 | -2
Pass Ratio : 100%
Indian standard classification of soil is based on _________
PRA system
International soil classification
M.I.T system
Indian system
Explanation:
Indian standard classification (IS: 1948-1970) is based on the M.I.T. system.
Question 10
Marks : +2 | -2
Pass Ratio : 100%
Highway research board (HRB) classification system is also known as__________
Indian classification system
Public road administration (PRA) system
International classification system
M.I.T. classification system
Explanation:
Highway research board classification system is also known as public road administration (PRA) system.