Preview Questions Geotechnical Engineer | Role Specific Skill

Question 1: Why is it important to measure the compressibility of soil in geotechnical analysis?

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To determine the soil's permeability under hydraulic pressure

To assess the shear strength of the soil at various depths

To estimate potential settlement under applied loads and ensure foundation stability

To analyze the organic content of the soil for fertility concerns

Question 2: What does the term "compaction curve" refer to in soil compaction testing, and why is it important for foundation design?

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It provides a visual representation of the soil's shear strength

It shows the relationship between moisture content and dry density, helping determine the optimal moisture for compaction

It measures the soil's permeability under pressure

It shows the consolidation rate of the soil under load

Question 3: What is the effect of highly expansive soils on site stability during foundation design in areas with fluctuating moisture levels?

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Increased swelling and shrinkage causing foundation instability

No effect on foundation stability

Increased compaction and improved bearing capacity

Reduced settlement and improved load distribution

Question 4: How does the Mohr-Coulomb failure criterion apply to geotechnical engineering?

Which action should you take?

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It determines the compaction effort required for soil stabilization

It predicts the moisture content of soil under load

It defines the relationship between soil density and porosity

It provides a relationship between shear strength and normal stress, critical for slope stability and foundation design

Question 5: When conducting a pumping test, what is the primary purpose of measuring drawdown during the test?

Which action should you take?

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To measure the depth of the water table

To assess the rate of infiltration of water in the soil

To evaluate the permeability and hydraulic conductivity of the soil

To determine the soil cohesion

Question 6: How does the soil's cohesion and internal friction angle affect the design of a shallow foundation?

Which action should you take?

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They determine the soil's shear strength and bearing capacity

They influence the water retention capacity of the soil

They determine the aesthetic appearance of the foundation

They control the soil's permeability for drainage purposes