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Soil Mechanics MCQs with Answers & Solutions — Page 5 | Civexa

Subjects / Soil Mechanics / MCQs

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Soil Mechanics MCQs with answers

268 free questions — page 5 of 6. Open one to see the correct answer and the full solution.

The property of a soil which enables to regain its strength lost on remoulding in a short time without change of moisture content is calledThixotropy
The property of soil mass which permits the seepage of water through its interconnecting voids is calledPermeability
The coefficient of consolidation is used for evaluatingConsolidation
The most suitable test for finding the shear strength of very plastic cohesive soils isShear Strength
A flownet is drawn to obtain (i). exit gradient (ii). uplift pressure (iii). coefficient of permeabilitySeepage Analysis
With the increase in compaction energy in a compaction testCompaction
The shear strength in cohesionless soil is due toShear Strength
Major principal stress in a soil is represented by the symbolShear Strength
The minimum water content at which the soil just begins to crumble when rolled into threads 3 mm in diameter, is known asIndex Properties
Reduction in volume of soil primarily due to squeezing out of water from the voids is calledConsolidation
In Mohr’s diagram, a point above the Mohr’s envelope indicatesShear Strength
For determining the shear strength parameters of soil in the laboratory which of the following test has to be done?Shear Strength
A soil sample has a void ratio of 0.5. Its porosity (n) will beIndex Properties
Which of the following factors does NOT affect the permeability of soil? (i) Total volume of the soil mass (ii) Particle size (iii) Void ratio (iv)…Permeability
The Compression Index of a soil helps in determiningConsolidation
Terzaghi’s one-dimensional consolidation theory assumes that (i) Darcy’s law is valid (ii) Soil is partially saturated (iii) Load is applied…Consolidation
In a Triaxial Compression test, if the pore water pressure is measured, the test is calledShear Strength
For a purely cohesive soil (clay), the angle of internal friction (ϕ) isShear Strength
A ‘Base Failure’ of a finite slope generally occurs whenStability of Slopes
Which of the following statement(s) is/are true regarding constant head permeability test? (i) It is a laboratory method used to determine the…Permeability
Which of the following statement(s) is/are true? (i) Below the shrinkage limit, the volume remains constant even as water content decreases further.…Index Properties
Which of the following statement(s) is/are true regarding coefficient of curvature Cc? (i) Cc is a crucial soil mechanics parameter used to determine…Index Properties
Consider the following statements regarding sedimentation analysis of soil particles based on Stokes’ law : 1. The finer soil particles are never…Particle Size Distribution
What is the grain specific gravity for humus type soil ?Index Properties
When the specific gravity of solids is known, which one of the following types of methods is used to determine the water content ?Index Properties
If γs = unit weight of the material of falling sphere in g/cm³, γt = unit weight of the liquid medium in g/cm³, μt = viscosity of the liquid medium…Particle Size Distribution
What is meant by Thixotropy ?Shear Strength
Consider the following statements regarding energy heads : 1. The velocity head in soils is negligible. 2. Direction of flow is determined by the…Permeability
What is the value of coefficient of permeability for coarse gravel ?Permeability
Which one of the following types of soils will usually shrink if drained or if subjected to repeated loading ?Ground Improvement Techniques
For a soil sample tested under uniaxial compression, the failure occurs at an angle of 45° + φ/2, where φ is the internal angle of friction. This…Shear Strength
Q.2 Which of the following is NOT a property of coir fibres?Geosynthetics
Q.25 Which of the following types of soil have excellent workability as a construction material?Soil Classification
Q.49 For field compaction of soil, in cohesive soil the combination of tamping action and kneading action on soil is achieved by:Compaction
Q.59 If the normal and shear stress corresponding the failure are plotted, then a curve is obtained. The plot or curve is called theShear Strength
Q.87 Which of the following methods is most accurate for the determination of the water content of cohesionless soil?Index Properties
Q.95 If the cohesion value of soil is zero, the Mohr envelope will pass through:Shear Strength
Proctor compaction test is made to determine moisture content at which soil will be compacted to obtainCompaction
Which of the following laboratory methods is more suitable to determine the permeability of less permeable soils?Permeability
The density of mercury used in shrinkage limit apparatus is _______ (approx).Index Properties
Soil with particle size less than _______ mm is called fine grained soil (silt or clay).Soil Classification
In soil mechanics, what is Darcy constant?Permeability
After compacting the subgrade, by suitable methods, the tests to ensure that the desired compaction has been achieved is/are:Compaction
The optimum water content (OWC) is the moisture content at which the soil attainsCompaction
Shear resistance of soil can be attributed to:Shear Strength
The dry density decreases in cohesionless soil with an increase in water content due to which of the following reasons?Compaction
The coefficient of the volume change mv is given byConsolidation
The law of flow of water through the soil was first studied byPermeability
In a sieve analysis of soil, the total weight of soil taken was 500 g. The mass of soil retained over 4.75 mm sieve was 100 g, mass retained over 2…Index Properties
Which of the following statements are correct with respect to Mohr-Coulomb failure criteria on soils. I: Mohr failure envelope is approximated as…Shear Strength

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