1
Geotechnical Engineering Quiz Questions with Detailed
Verified Answers (100% Correct Answers) /Already Graded
A+
Body Forces
Ans: Forces acting throughout a volume of material.
Equations of Equilibrium
Ans: Mathematical expressions ensuring force balance.
Constitutive Models
Ans: Stress-strain relationships for material behavior.
Mohr-Coulomb Criterion
Ans: A yield function for shear strength analysis.
Hardening Law
Ans: Describes yield stress increase with plastic strain.
Young's Modulus (E)
Ans: Measure of material stiffness under uniaxial stress.
Poisson's Ratio (ν)
Ans: Ratio of lateral strain to axial strain.
Shear Strength
Ans: Resistance of soil to shear stress.
Cohesion Intercept
Ans: Y-intercept of the shear strength vs. normal stress plot.
Approved By:
vPretest - Stuvia US
,2
Angle of Shear Resistance
Ans: Slope of the shear strength vs. normal stress plot.
Undrained Strength
Ans: Soil strength without drainage during loading.
Drained Strength
Ans: Soil strength with drainage during loading.
Direct Shear Box Test
Ans: Test measuring shear strength under controlled conditions.
Triaxial Test
Ans: Test measuring soil strength under controlled drainage.
Effective Stress
Ans: Stress that contributes to soil strength and stability.
Pore Water Pressure
Ans: Pressure of water within soil pores.
Stress Invariants
Ans: Quantities representing stress states independent of orientation.
Principal Stresses
Ans: Maximum and minimum normal stresses at a point.
Mean Stress Invariant
Ans: Average of principal stresses affecting volume change.
Deviatoric Stress
Approved By:
vPretest - Stuvia US
, 3
Ans: Difference between the maximum and minimum principal stresses.
Interlocking
Ans: Resistance due to particle arrangement and shape.
Consolidation
Ans: Process of volume change due to pore pressure dissipation.
Oedometer Test
Ans: Test measuring soil consolidation under vertical loading.
Back Pressure
Ans: Pressure applied to control effective stress during testing.
High Permeability
Ans: Ability of soil to transmit water easily.
Well-Graded Soils
Ans: Soils with a range of particle sizes for density.
Angular Particles
Ans: Soil particles with sharp edges enhancing interlocking.
Soil strength
Ans: Comes from particle interlock (measured by dilatancy), friction
resistance between particles (true angle of friction) and work required to
rearrange particles.
Maximum angle of shearing resistance
Ans: Reduces with increasing effective normal stress.
Construction processes impact on soil
Approved By:
vPretest - Stuvia US
Geotechnical Engineering Quiz Questions with Detailed
Verified Answers (100% Correct Answers) /Already Graded
A+
Body Forces
Ans: Forces acting throughout a volume of material.
Equations of Equilibrium
Ans: Mathematical expressions ensuring force balance.
Constitutive Models
Ans: Stress-strain relationships for material behavior.
Mohr-Coulomb Criterion
Ans: A yield function for shear strength analysis.
Hardening Law
Ans: Describes yield stress increase with plastic strain.
Young's Modulus (E)
Ans: Measure of material stiffness under uniaxial stress.
Poisson's Ratio (ν)
Ans: Ratio of lateral strain to axial strain.
Shear Strength
Ans: Resistance of soil to shear stress.
Cohesion Intercept
Ans: Y-intercept of the shear strength vs. normal stress plot.
Approved By:
vPretest - Stuvia US
,2
Angle of Shear Resistance
Ans: Slope of the shear strength vs. normal stress plot.
Undrained Strength
Ans: Soil strength without drainage during loading.
Drained Strength
Ans: Soil strength with drainage during loading.
Direct Shear Box Test
Ans: Test measuring shear strength under controlled conditions.
Triaxial Test
Ans: Test measuring soil strength under controlled drainage.
Effective Stress
Ans: Stress that contributes to soil strength and stability.
Pore Water Pressure
Ans: Pressure of water within soil pores.
Stress Invariants
Ans: Quantities representing stress states independent of orientation.
Principal Stresses
Ans: Maximum and minimum normal stresses at a point.
Mean Stress Invariant
Ans: Average of principal stresses affecting volume change.
Deviatoric Stress
Approved By:
vPretest - Stuvia US
, 3
Ans: Difference between the maximum and minimum principal stresses.
Interlocking
Ans: Resistance due to particle arrangement and shape.
Consolidation
Ans: Process of volume change due to pore pressure dissipation.
Oedometer Test
Ans: Test measuring soil consolidation under vertical loading.
Back Pressure
Ans: Pressure applied to control effective stress during testing.
High Permeability
Ans: Ability of soil to transmit water easily.
Well-Graded Soils
Ans: Soils with a range of particle sizes for density.
Angular Particles
Ans: Soil particles with sharp edges enhancing interlocking.
Soil strength
Ans: Comes from particle interlock (measured by dilatancy), friction
resistance between particles (true angle of friction) and work required to
rearrange particles.
Maximum angle of shearing resistance
Ans: Reduces with increasing effective normal stress.
Construction processes impact on soil
Approved By:
vPretest - Stuvia US
