Preview Questions Geotechnical Engineer | Role Specific Skill

Question 1: Why is it important to conduct in-situ soil testing rather than relying solely on laboratory test results for foundation design?

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In-situ testing is only necessary for fine-grained soils

In-situ testing provides real-world data that accounts for site-specific conditions, improving design accuracy

Laboratory tests provide more reliable data than in-situ testing

In-situ testing is faster and cheaper than laboratory testing

Question 2: What is the most important factor when selecting the type of foundation for a specific construction project?

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The cost of construction for each foundation type

The soil properties, including bearing capacity, type, and settlement characteristics

The distance of the construction site from the nearest material supplier

The aesthetics and architectural design of the building

Question 3: In terms of foundation design, what is the significance of cohesion and internal friction in soil?

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They help in estimating the time for foundation completion

They determine the aesthetic appeal of the soil in foundation work

These factors influence the soil's shear strength and the foundation's stability

They assist in determining the quantity of water in the foundation soil

Question 4: What is the significance of conducting a geophysical survey before starting a construction project in an area prone to ground instability?

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It provides a non-invasive method to map subsurface conditions, identifying areas of weakness or instability

It is primarily used to assess the visual appearance of the land surface

It reduces the cost of excavation by identifying solid rock layers

It helps determine the aesthetics of the construction site

Question 5: What is the significance of conducting a hydrogeological study for large construction projects?

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It estimates the aesthetic appearance of the groundwater near the site

It assesses the volume of water required for the construction process

It predicts the total cost of groundwater removal

It provides crucial data on groundwater flow, quality, and potential risks, guiding design decisions

Question 6: What is the role of the compaction test in soil testing, and which method is most commonly used?

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It calculates the soil's void ratio using a consolidation test

It assesses the shear strength of the soil using a triaxial test

It determines the optimal moisture content and density for maximum compaction, typically using the Proctor Test

It measures the soil's permeability using a falling head method