Quiz
Geotech II: Chapter 12 Quiz Questions
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Questions in this quiz (15)
1True or False:
The SHEAR STRENGTH of a soil mass is the internal resistance per unit area that the soil mass can offer to resist failure and sliding along any plane inside it.- ATrue
- BFalse
2Who presented a theory for rupture in material that contended that a material fails because of a critical combination of normal stress and shearing stress and not from either maximum normal or shear stress alone.
- ATerzhagi
- BRalph Peck
- CBernoulli
- DMohr-Coulomb
3[blank_start]c[blank_end] represents the cohesion of the soil in terms of normal stress, and [blank_start]c'[blank_end] represents the cohesion of the soil in terms of effective stress. The value of c or c' for [blank_start]sand and inorganic silt[blank_end] is 0. For normally consolidated clay c' be approximated at [blank_start]0[blank_end]. Over-consolidated clay have values of c' greater than 0.
- Ac
- Bc'
- Cc'
- Dc
- Esand and inorganic silt
- FOver-consolidated clay
- GNormally consolidated clay
- H0
- I50 kN/m^2
- Jgreater than 0
- K10% of the normal or effective stress
4The angle of friction (phi') is sometimes referred to as the drained angle of friction.
- ATrue
- BFalse
5Look at the figure below. Indicate whether the following points (A, B, and C) have failed or not.
- AHas failed
- BHas not failed
- CImpossible
- DHas failed.
- EHas not failed.
- FImpossible.
- GHas failed.
- HHas not failed.
- IImpossible.
6Select the two most commonly used techniques for determining the shear strength parameters of soil:
- ADirect ShearTest
- BTriaxial Test
- CDirect Simple Shear Test
- DPlane Strain Triaxial Test
- ETorsional Ring Shear Test
7True or False: The picture below shows the Direct Shear Test?
- ATrue
- BFalse
8True or False: In dense sand, the peak shear strength and ultimate shear strength are the same values.
- ATrue
- BFalse
9True or False: The drained angle of friction (phi') of normally consolidated clay generally decreases with the plasticity index of soil.
- ATrue
- BFalse
10Select the shortcomings of the Direct Shear Test:
- ASoil is not allowed to fail along the weakest plane but is forced to fail along the plane of split of the shear box.
- BThe shear stress distribution over the shear surface is not uniform.
- CSimplest and most economical to use.
- DCannot be performed on saturated sand and clay.
- ECan be either strain or stress controlled.
11Select the following general types of triaxial shear tests that are conducted to determine the shear strength parameters of soil:
- ASkempton's Pore Pressure Parameters test
- BInternal Friction Generator test (IFG test)
- CConsolidated-drained test or drained test (CD test)
- DHydraulic Hammer Test
- EConsolidated-undrained test (CU test)
- FUnconsolidated-undrained test or undrained test (UU test)
12Label which deviator stress and volume change plots correspond to triaxial-stress tests on loose sand/normally consolidated clay and dense sand/over consolidated clay.
- ALoose sand/Normally Consolidated Clay
- BDense sand/Overconsolidated clay
13True or False: The Consolidated Drained type of triaxial test is uncommon for clayey soils.
- ATrue
- BFalse
14The [blank_start]consolidated-undrained test[blank_end] is the most common type of triaxial test.
- Aconsolidated-undrained test
- BConsolidated-drained test
- CUnconsolidated-undrained test
15True or False: The Unconsolidated-Undrained Triaxial Test is usually conducted on clay specimens and depends on a very important strength concept for cohesive soils if the soil is fully saturated.
- ATrue
- BFalse
Information
- Description
- Chapter 12 review questions on shear strength and soil parameters.
- Author
- Analiese Majetich
- Language
- English
- Views
- 461
- History
- Created on 16 Nov 2018 · updated on 16 Nov 2018
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