B3e551 Vol 2

91 Questions | Total Attempts: 257

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B3e551 Vol 2


Questions and Answers
  • 1. 
    (201) Soil contains many voids of varying sizes. What type of material most likely will be trapped in the voids between particles in a soil sample?
    • A. 

      Organics.

    • B. 

      Water

    • C. 

      Fines

    • D. 

      Air

  • 2. 
    (201) Which of the following is not one of the four groups of designated soil particle size ranges?
    • A. 

      Cobbles

    • B. 

      Gravels

    • C. 

      Silts

    • D. 

      Fines

  • 3. 
    (201) Refer to figure 1–3. If a particle passes the 3-inch sieve but is retained on the No. 10, how is it categorized?
    • A. 

      Coarse sand.

    • B. 

      Sand

    • C. 

      Course Gravel

    • D. 

      Gravel

  • 4. 
    (201) Angular gravels and sands are generally the best materials for construction because of what characteristics?
    • A. 

      Compactability

    • B. 

      Intertwining

    • C. 

      Interlocking

    • D. 

      Angular

  • 5. 
    (201) When viewed under a microscope, what shape do the fines in clay have?
    • A. 

      Subangular

    • B. 

      Platy

    • C. 

      Bulky

    • D. 

      Flat

  • 6. 
    (201) Which of the following is a type of moisture that may be present as a film surrounding separate soil particles?
    • A. 

      Gravitational

    • B. 

      Absorbed

    • C. 

      Adsorbed

    • D. 

      Capillary

  • 7. 
    (201) What is the name of a soil’s ability to deform without cracking or breaking?
    • A. 

      Cohesion

    • B. 

      Plasticity

    • C. 

      Liquid Limit

    • D. 

      Plasticity Index

  • 8. 
    (201) Organic soils have high organic contents, and what other characteristic?
    • A. 

      Poor load-maintaining properties.

    • B. 

      Poor load-bearing properties.

    • C. 

      Low compressibility.

    • D. 

      High Liquid Limit.

  • 9. 
    (201) The Unified Soils Classification System (USCS) divides soils into how many major and minor categories?
    • A. 

      Six major and three minor.

    • B. 

      Three major and six minor.

    • C. 

      Ten major and four minor.

    • D. 

      Four major and ten minor.

  • 10. 
    (201) Refer to figure 1–6 in the text. What is the letter symbol for a well-graded gravel with little or no fines?
    • A. 

      GP

    • B. 

      GW

    • C. 

      WG

    • D. 

      GM

  • 11. 
    (201) Refer to figure 1–6 in the text. What is the letter symbol for inorganic silts with slight plasticity?
    • A. 

      OM

    • B. 

      MO

    • C. 

      ML

    • D. 

      CL

  • 12. 
    (202) When performing the sedimentation soil classification test, how much of what material goes into the jar?
    • A. 

      About 4 inch of the fine fraction of soil passing the No. 1 sieve

    • B. 

      About 1 inch of the fine fraction of soil passing the No. 40 sieve

    • C. 

      About 1 inch of the fine fraction of soil passing the No. 200 sieve.

    • D. 

      About 1 inch of the fine fraction of soil passing the No. 4 sieve.

  • 13. 
    (202) When performing the grit soil classification test, what is the difference between clayey and silty soils?
    • A. 

      Silty soils are very gritty on the teeth while clayey soils feel smooth and powdery

    • B. 

      Silty soils are gritty on the teeth while clayey soils feel smooth and powdery

    • C. 

      Clayey soils are gritty on the teeth while silty soils feel smooth and powdery

    • D. 

      Silty soils have hard, sharp particles while clayey soils feel smooth and powdery

  • 14. 
    (202) When performing the roll or thread soil classification test, what is the likely classification of a soil sample that cannot be rolled into a thread at any moisture content?
    • A. 

      CH or CL.

    • B. 

      MH or CH

    • C. 

      ML or CL

    • D. 

      ML or MH.

  • 15. 
    (202) When performing the wet shaking soil classification test, how can you tell if the water content of the soil sample is adequate?
    • A. 

      The sample should be just wet enough to form a sticky ball.

    • B. 

      The sample should be just wet enough to form a smooth powdery ball.

    • C. 

      The surface of the sample becomes dull and the material becomes firm.

    • D. 

      When the broken pieces of the sample are shaken they will liquefy again and flow together.

  • 16. 
    (202) When performing the dry strength soil classification test, the soil sample indicates an inorganic clay with low to medium plasticity if the pat
    • A. 

      Has little or no dry strength and crumbles or powders when picked up.

    • B. 

      Can be broken with great effort, but cannot be powdered

    • C. 

      Cannot be broken nor powdered by finger pressure

    • D. 

      Can be broken and powdered with some effort

  • 17. 
    (202) What is the likely soil classification if a sample passes the No. 40 sieve, does not have an organic odor, and has more than 50 percent fines in the sedimentation test, and a pat cannot be broken with hand strength?
    • A. 

      SH

    • B. 

      MH

    • C. 

      CH

    • D. 

      CL

  • 18. 
    (203) Given a soil sample with an original weight of 40.52 and a dried weight of 28.52, what is the moisture content?
    • A. 

      12%

    • B. 

      24%

    • C. 

      42%

    • D. 

      36%

  • 19. 
    (203) What are the three known values when using a Casagrande cup to determine the liquid limit (LL) of a sample?
    • A. 

      Distance between sample halves, distance of cup drop, and number of blows per minute

    • B. 

      13.5mm, 10mm, and 120 blows

    • C. 

      Distance between samples, distance of cup drop, and number of blows per minute

    • D. 

      13.5mm, 10mm, and 25 blows

  • 20. 
    (203) What is the final result of a Proctor compaction test?
    • A. 

      The maximum dry density.

    • B. 

      The peak point of compaction.

    • C. 

      The optimal moisture content for soil compaction.

    • D. 

      The compaction curve displaying all dry densities.

  • 21. 
    (204) What is the specific gravity of Bromine if its density is 3119 kilograms per cubic meter (kg/m3)?
    • A. 

      3.12.

    • B. 

      31.2.

    • C. 

      7.99

    • D. 

      79.9

  • 22. 
     (205) Rigid pavements are often cut into squares or slabs because slabs allow
    • A. 

      Water to drain between their cracks during heavy precipitation.

    • B. 

      For easier removal and replacement if one if damaged.

    • C. 

      the PCC to expand and contract according to temperature changes

    • D. 

      The ACC to expand and contract according to temperature changes.

  • 23. 
    (205) What happens to the weight of a load applied to a rigid paving material?
    • A. 

      It is distributed evenly across the subsurface material

    • B. 

      The load is supported by the surface of the rigid pavement.

    • C. 

      It creates a cone shape down through the subsurface material.

    • D. 

      Loads are distributed down to the bottom of the subsurface material.

  • 24. 
    . (206) What is the final determination of the Marshall stability test?
    • A. 

      The amount of flow of the sample.

    • B. 

      The amount of deformation of the sample

    • C. 

      The amount of deformation of the sample at 140°F.

    • D. 

      Whether the hot mix asphalt (HMA) design can support the intended traffic load.

  • 25. 
    (206) After hot mix asphalt (HMA) compaction, what is a good indication of the mix design’s probable pavement surface performance?
    • A. 

      The theoretical specific gravity of a HMA sample

    • B. 

      The combination of aggregate voids filled with asphalt and filled with water.

    • C. 

      The combination of aggregate voids filled with asphalt and filled with air.

    • D. 

      The affective asphalt content

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