Preview Questions Geotechnical Engineer | Role Specific Skill

Question 1: How does a soil's moisture content affect its shear strength during soil testing?

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Increased moisture content increases the shear strength of the soil

Increased moisture content increases the bearing capacity of soil

Moisture content has no effect on shear strength

Increased moisture content generally decreases shear strength, especially in fine-grained soils

Question 2: What is the role of groundwater in risk assessments for foundation design, and how does it affect stability?

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Groundwater elevates pore pressure in soil, reducing its shear strength and increasing settlement risk

Groundwater reduces the risk of soil movement, improving stability

Groundwater has minimal effect unless the site is located near a river

Groundwater increases soil compaction, improving foundation stability

Question 3: How does the use of geotechnical data influence the selection of foundation types in earthquake engineering?

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It reduces the overall construction time and material usage

It provides essential information about soil behavior, shear strength, and liquefaction potential, helping determine the appropriate foundation type

It helps assess the aesthetic value of the foundation on the construction site

It allows for minimizing the depth of the foundation without compromising safety

Question 4: When evaluating foundation risk in seismic areas, what is the primary consideration in a site-specific risk assessment?

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Soil liquefaction potential under seismic loads

Soil plasticity index and settlement potential

Soil shear strength and compaction properties

Soil cohesion and permeability

Question 5: What is the effect of an earthquake on shallow foundations when constructed on loose or unconsolidated soils?

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Increased friction and stability

Minimal effects due to low seismic wave propagation

No effects if deep foundations are used

Increased liquefaction and settlement

Question 6: During an earthquake impact study, how does soil liquefaction affect the structural stability of foundations?

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Loss of foundation support due to soil displacement

Increased load-bearing capacity

No significant effect if deep foundations are used

Increased friction between the foundation and soil