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Geotechnical Engineering - Final Exam with verified answers
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Geotechnical Engineering - Final Exam with verified answers
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Geotechnical Engineering - Final Examwith verified answers
Soil Mechanics - ** VERIFIED ANSWERS **✔✔Study of physical properties of soil and it's behavior
under applied forces. It also deals with flow of water through soil and it's a combination of solid
mechanics and fluid mechanics.
Igneous Rocks - ** VERIFIED ANSWERS **✔✔Formed from magma cooling
Sedimentary Rocks - ** VERIFIED ANSWERS **✔✔formed by the deposition of material at the
Earth's surface and within bodies of water. ( Soil layers being compressed by pressure "lithification")
Metamorphic Rocks - ** VERIFIED ANSWERS **✔✔formed from pressure and head, this process is
also known as metamorphism.
Organic Soils - ** VERIFIED ANSWERS **✔✔formed from decayed plant and animal life
Inorganic Soils - ** VERIFIED ANSWERS **✔✔chemical and mechanical weathering of rocks
Weathering - ** VERIFIED ANSWERS **✔✔process of breaking down rocks by mechanical and
chemical process.
Mechanical Weathering - ** VERIFIED ANSWERS **✔✔rocks are broken down without any change
in the chemical nature of the rocks. (temperature change)
Chemical Weathering - ** VERIFIED ANSWERS **✔✔rocks are broken down by chemical
reactions. (carbonation, oxidation, hydration)
, Sieve Analysis - ** VERIFIED ANSWERS **✔✔consists of shaking soil sample through set of sieves
that have progressively smaller opening.
What is the opening in (mm) for sieve number 4? - ** VERIFIED ANSWERS **✔✔4.75 mm
What is the opening in (mm) for sieve number 200? - ** VERIFIED ANSWERS **✔✔0.075 mm
At what particle diameter size is Hydrometer Analysis used for? - ** VERIFIED ANSWERS
**✔✔used for particle size less than 0.075 mm in diameter (or opening)
Stroke's Law - ** VERIFIED ANSWERS **✔✔Rate of settlement of solid spheres dispersed in a
liquid.
Effective Size (D10) - ** VERIFIED ANSWERS **✔✔diameter from curve corresponding to 10%
finer
The unit weight of water is equal to ( English units) - ** VERIFIED ANSWERS **✔✔62.4 lb/ft^3
The unit weight of water is equal to (SI Units) - ** VERIFIED ANSWERS **✔✔9.81 kN/m^3
Volume is a function of - ** VERIFIED ANSWERS **✔✔Temperature and Pressure
What does it mean when soil sample is saturated? - ** VERIFIED ANSWERS **✔✔The void spaces
are completely filled with water.
Shrinkage Limit - ** VERIFIED ANSWERS **✔✔Moisture content at which the transition from
solid to semisolid state takes place.
Plastic Limit - ** VERIFIED ANSWERS **✔✔Moisture content at point of transition form semisolid
to plastic state
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