Soils Special Inspection Test Questions

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Soils Special Inspection Test Questions - Quiz

Who would say that at some point we would be able to test different types of soils for our own good. Take up the quiz below on soils special inspection and see how it goes. All the best.


Questions and Answers
  • 1. 

    You have just finished an in-place density test that resulted in a failing test, who should you contact first?

    • A.

      Building Official

    • B.

      Engineer of Record

    • C.

      Contractor

    • D.

      Architect

    Correct Answer
    C. Contractor
    Explanation
    After completing an in-place density test that failed, the first person to be contacted should be the Contractor. The Contractor is responsible for the construction work and is directly involved in the execution of the project. They should be informed immediately about the failing test so that they can take appropriate actions to rectify the issue and ensure that the necessary corrective measures are implemented. The Contractor can then communicate with other parties involved, such as the Engineer of Record or Architect, if necessary, to address the problem effectively.

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  • 2. 

    When writing a special inspection daily report of soil testing, everything should be included in the report EXCEPT:

    • A.

      Number of tests performed

    • B.

      Location of tests

    • C.

      Test results

    • D.

      Height of building

    Correct Answer
    D. Height of building
    Explanation
    In a special inspection daily report of soil testing, all relevant information about the tests conducted should be included. This includes the number of tests performed, the location of the tests, and the test results. However, the height of the building is not directly related to the soil testing and therefore does not need to be included in the report.

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  • 3. 

    Refer to Page 3 of plans.  What is the maximum rock size allowed in fill material?

    • A.

      4"

    • B.

      3"

    • C.

      1½"

    • D.

      2"

    Correct Answer
    B. 3"
    Explanation
    The maximum rock size allowed in fill material is 3 inches.

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  • 4. 

    Refer to Page 1 of plans.  What is the finished floor elevation of the proposed library?

    • A.

      1056.00

    • B.

      1042.00

    • C.

      1052.27

    • D.

      1055.00

    Correct Answer
    A. 1056.00
    Explanation
    The finished floor elevation of the proposed library is 1056.00. This can be determined by referring to Page 1 of the plans.

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  • 5. 

    What does the peak of a proctor curve represent?

    • A.

      Maximum dry density

    • B.

      Maximum wet density and optimum moisture content

    • C.

      Optimum moisture content

    • D.

      Maximum dry density and optimum moisture content

    Correct Answer
    D. Maximum dry density and optimum moisture content
    Explanation
    The peak of a proctor curve represents the maximum dry density and optimum moisture content. This point on the curve indicates the highest density that can be achieved for a given soil at its optimum moisture content. It represents the ideal conditions for compacting the soil to its highest possible density, which is important for construction and engineering purposes.

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  • 6. 

    When performing Method C of ASTM D 1557, the ____ lb hammer should be used.

    • A.

      5.5

    • B.

      9

    • C.

      10

    • D.

      12

    Correct Answer
    C. 10
    Explanation
    When performing Method C of ASTM D 1557, the 10 lb hammer should be used. This is because ASTM D 1557 specifies the use of a 10 lb hammer for Method C, which is a standard test method for determining the maximum dry density and optimum moisture content of soils. The use of a 10 lb hammer ensures consistency and accuracy in the test results.

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  • 7. 

    According to ASTM 6938, if the density and moisture readings become suspect, you should _____.

    • A.

      Continue to perform tests until readings better match previous readings

    • B.

      Perform another standardization test

    • C.

      Move 6 inches and perform another test

    • D.

      Turn the machine off and on and perform another test

    Correct Answer
    B. Perform another standardization test
    Explanation
    If the density and moisture readings become suspect according to ASTM 6938, performing another standardization test is recommended. This is because a standardization test helps to calibrate the testing equipment and ensure accurate and reliable readings. By performing another standardization test, any potential issues or inaccuracies in the readings can be identified and corrected, ensuring the reliability of subsequent test results.

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  • 8. 

    The Plasticity Index (PI) is equal to _________.

    • A.

      The Liquid Limit (LL) minus the Plastic Limit (PL)

    • B.

      The Liquid Limit (LL) plus the Plastic Limit (PL)

    • C.

      The Plastic Limit (PL) plus the Liquid Limit (LL)

    • D.

      The Plastic Limit (PL) minus the Liquid Limit (LL)

    Correct Answer
    A. The Liquid Limit (LL) minus the Plastic Limit (PL)
    Explanation
    The Plasticity Index (PI) is a measure of the range of moisture content over which a soil exhibits plastic behavior. It is calculated by subtracting the Plastic Limit (PL) from the Liquid Limit (LL). The Liquid Limit represents the moisture content at which a soil transitions from a liquid to a plastic state, while the Plastic Limit represents the moisture content at which a soil transitions from a plastic to a solid state. Therefore, subtracting the Plastic Limit from the Liquid Limit gives us the range of moisture content over which the soil exhibits plastic behavior, which is the definition of the Plasticity Index.

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  • 9. 

    Refer to Page 1 of the plans.  What is the elevation of the inlet structure at A10.

    • A.

      1022

    • B.

      1020

    • C.

      1024

    • D.

      1028

    Correct Answer
    C. 1024
    Explanation
    The correct answer is 1024. This can be determined by referring to Page 1 of the plans where the elevation of the inlet structure at A10 is stated to be 1024.

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  • 10. 

    Refer to Page 2 of plans. What is the distance (ft) of storm drain between A4 and A5?

    • A.

      100

    • B.

      90

    • C.

      92

    • D.

      95

    Correct Answer
    C. 92
    Explanation
    The distance of the storm drain between A4 and A5 is 92 feet.

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  • 11. 

    Refer to Page 1 of plans.  How many feet of fill is necessary at the approximate center of proposed library (assuming a slab thickness plus stone base thickness of 1 foot)?

    • A.

      5

    • B.

      7

    • C.

      3

    • D.

      2

    Correct Answer
    B. 7
    Explanation
    Based on the information provided, the approximate center of the proposed library requires 7 feet of fill. This is determined by adding the slab thickness plus stone base thickness of 1 foot.

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  • 12. 

    What is the required percent compaction of fill soils for the project?

    • A.

      98% of Standard Proctor

    • B.

      98% of Standard Proctor in upper 2 feet of fill

    • C.

      95% of Standard Proctor

    • D.

      95% of Modified Proctor

    Correct Answer
    C. 95% of Standard Proctor
    Explanation
    The required percent compaction of fill soils for the project is 95% of Standard Proctor. This means that the fill soils need to be compacted to a density that is 95% of the maximum dry density determined by the Standard Proctor compaction test. This test measures the maximum density that can be achieved for a given soil by compacting it at a specific moisture content and energy level. Achieving 95% compaction ensures that the fill soils are sufficiently dense and stable for the project.

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  • 13. 

    According to ASTM D 75, if the maximum aggregate size is 12.5 mm, what field sample mass must be obtained?

    • A.

      10 kg

    • B.

      15 kg

    • C.

      25 kg

    • D.

      12 kg

    Correct Answer
    B. 15 kg
    Explanation
    According to ASTM D 75, the field sample mass that must be obtained when the maximum aggregate size is 12.5 mm is 15 kg.

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  • 14. 

    According to the International Building Code, all of the following tasks require periodic inspection EXCEPT?

    • A.

      Verify materials below footings are adequate

    • B.

      Verify excavations are extended to proper depth

    • C.

      In the presence of less than 12 inches of fill, verify use of proper materials, densities, and lift thicknesses

    • D.

      In the presence of more than 12 inches of fill, verify use of proper materials, densities, and lift thicknesses

    Correct Answer
    D. In the presence of more than 12 inches of fill, verify use of proper materials, densities, and lift thicknesses
    Explanation
    According to the International Building Code, all of the mentioned tasks require periodic inspection except for "In the presence of more than 12 inches of fill, verify use of proper materials, densities, and lift thicknesses." This means that for any fill that is more than 12 inches, there is no need to verify the use of proper materials, densities, and lift thicknesses. However, the other tasks mentioned, such as verifying materials below footings, verifying excavations, and verifying the use of proper materials, densities, and lift thicknesses in the presence of less than 12 inches of fill, all require periodic inspection to ensure compliance with building code regulations.

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  • 15. 

    According to the International Building Code, the maximum lift thickness of backfill material is _____ inches

    • A.

      10

    • B.

      8

    • C.

      9

    • D.

      6

    Correct Answer
    B. 8
    Explanation
    According to the International Building Code, the maximum lift thickness of backfill material is 8 inches. This means that when backfilling a trench or excavation, the material should be placed in layers no thicker than 8 inches at a time. This ensures proper compaction and stability of the backfill, reducing the risk of settlement or damage to the structure.

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  • 16. 

    What is the BEST compaction equipment for clayey and silty soils?

    • A.

      Non-vibe sheep’s foot

    • B.

      Vibratory sheep’s foot

    • C.

      Vibratory flat-drum roller

    • D.

      Tracked by dozer

    Correct Answer
    A. Non-vibe sheep’s foot
    Explanation
    The best compaction equipment for clayey and silty soils is a non-vibe sheep's foot. Clayey and silty soils are cohesive and have a high moisture content, which makes them prone to excessive compaction. The non-vibe sheep's foot, also known as a padfoot roller, is designed specifically for compacting cohesive soils. Its cylindrical drum is covered with "feet" or pads that penetrate the soil, creating kneading and shearing forces that help to compact the soil effectively. The non-vibe sheep's foot is preferred over other options like the vibratory sheep's foot, vibratory flat-drum roller, and tracked by dozer for these soil types because it provides better compaction results.

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  • 17. 

    While performing a sand-cone density test, an operator turns on his machine and causes vibrations at your test location, causing additional sand to enter hole.  This will cause your test results to show a _____.

    • A.

      A higher wet density

    • B.

      A higher moisture content

    • C.

      A higher dry density

    • D.

      A lower dry density

    Correct Answer
    D. A lower dry density
    Explanation
    When the operator turns on the machine and causes vibrations, additional sand enters the hole during the sand-cone density test. This means that there is more sand in the hole, which will increase the volume and decrease the dry density of the soil. Therefore, the test results will show a lower dry density.

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  • 18. 

    A slope is adjacent to a graded building pad with an elevation of 1048.2.  The slope is not yet complete but you need to determine the current elevation for your report.  You take three 6-ft readings and an additional 2-ft reading with your hand level.  What is the current elevation of slope?

    • A.

      1068.2

    • B.

      1062.2

    • C.

      1066.2

    • D.

      1056.2

    Correct Answer
    A. 1068.2
    Explanation
    The current elevation of the slope is 1068.2. This is determined by taking three 6-ft readings and an additional 2-ft reading with a hand level. By adding these readings to the elevation of the graded building pad (1048.2), we can determine the current elevation of the slope.

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  • 19. 

    If you are determining the water content of soil when it just begins to crumble when rolled into a 1/8-inch thread, you are determining the _____ of ASTM D 4318.

    • A.

      Liquid Limit

    • B.

      Plasticity Index

    • C.

      Plastic Limit

    • D.

      Liquid Index

    Correct Answer
    C. Plastic Limit
    Explanation
    When determining the water content of soil when it just begins to crumble when rolled into a 1/8-inch thread, you are determining the Plastic Limit of ASTM D 4318. The Plastic Limit is the water content at which a soil transitions from a plastic state to a semi-solid state. It represents the minimum moisture content at which the soil can still be molded into a specific shape without crumbling.

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  • 20. 

    All of the following EXCEPT ____ will affect the moisture reading of the nuclear gage.

    • A.

      Micaceous soils

    • B.

      Silica sand

    • C.

      Organic material

    • D.

      Boron, chlorine and cadmium

    Correct Answer
    B. Silica sand
    Explanation
    Silica sand will not affect the moisture reading of the nuclear gage. Silica sand is a type of sand that contains high levels of silica, which is a non-reactive substance. The nuclear gage measures moisture content by emitting radiation and measuring the amount of radiation that is absorbed by the soil. Since silica sand does not contain any reactive elements or compounds, it will not interfere with the radiation absorption and therefore will not affect the moisture reading.

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  • 21. 

    Wet density of a soil is 123.2, moisture content is 14.2%, what is the dry density?

    • A.

      107.7

    • B.

      107.9

    • C.

      108.0

    • D.

      108.1

    Correct Answer
    B. 107.9
    Explanation
    The dry density of a soil can be calculated by dividing the wet density by the sum of 1 and the moisture content, then multiplying the result by 100. In this case, the wet density is 123.2 and the moisture content is 14.2%. Therefore, the dry density can be calculated as (123.2 / (1 + 0.142)) * 100 = 107.9.

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  • 22. 

    Dry density of soil is 115.2.  Maximum dry density is 120.4.  What is percent compaction?

    • A.

      96

    • B.

      95

    • C.

      97

    • D.

      94

    Correct Answer
    A. 96
    Explanation
    Percent compaction is a measure of how much the soil has been compacted compared to its maximum dry density. It is calculated by dividing the dry density of the soil by the maximum dry density and multiplying by 100. In this case, the dry density is 115.2 and the maximum dry density is 120.4. Dividing 115.2 by 120.4 and multiplying by 100 gives a percent compaction of 95.8, which is closest to 96. Therefore, the correct answer is 96.

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  • 23. 

    Refer to Page 2 of the plans. Approximately how many feet of fill is necessary above the top of pipe at Yard Inlet A5 to be back at the existing grade?

    • A.

      2

    • B.

      5

    • C.

      4

    • D.

      5.5

    Correct Answer
    C. 4
    Explanation
    Based on the given information, it is stated that the necessary fill above the top of the pipe at Yard Inlet A5 should be back at the existing grade. The correct answer is 4, which means that approximately 4 feet of fill is required above the top of the pipe to reach the existing grade.

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  • 24. 

    After performing Atterberg Limit’s testing, you determine the LL for a soil is 52 and the PL is 18.  What would be the classification of this soil?

    • A.

      MH

    • B.

      CL

    • C.

      SM

    • D.

      CH

    Correct Answer
    D. CH
    Explanation
    Based on the Atterberg Limit testing results, the liquid limit (LL) of the soil is 52 and the plastic limit (PL) is 18. According to the Unified Soil Classification System (USCS), a soil with a high plasticity index (PI = LL - PL) is classified as CH, which stands for clay of high plasticity. Therefore, the classification of this soil would be CH.

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  • 25. 

    A survey stake that reads C250 indicates that:

    • A.

      The ground level is too high by 2.5 inches

    • B.

      The ground level is too high by 2.5 feet

    • C.

      The ground level is too low by 2.5 inches

    • D.

      The ground level is too low by 2.5 feet

    Correct Answer
    B. The ground level is too high by 2.5 feet
    Explanation
    The survey stake reading C250 indicates that the ground level is too high by 2.5 feet.

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  • 26. 

    All of the following is a function of compaction effort except:

    • A.

      Soil type

    • B.

      Moisture content

    • C.

      Compaction equipment

    • D.

      Specific gravity

    Correct Answer
    D. Specific gravity
    Explanation
    The specific gravity of a material refers to its density compared to the density of water. It is not a function of compaction effort because it is a characteristic property of the material itself, unrelated to the process of compacting the soil. Compaction effort, on the other hand, refers to the amount of force applied to the soil during the compaction process, which can affect its density and compaction characteristics. Therefore, specific gravity is not a factor that is influenced by compaction effort.

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  • 27. 

    Given:  A CH soil has 35% retained on #200 sieve, a Liquid Limit of 35, a dry density of 92.8, and a moisture content of 24.3. Which of the following makes this sentence incorrect?

    • A.

      Dry density is too high

    • B.

      LL is too low

    • C.

      Compaction is not required on a CH soil

    • D.

      Moisture content is too low

    Correct Answer
    B. LL is too low
    Explanation
    The given sentence is incorrect because the Liquid Limit (LL) is too low. A CH soil typically has a higher Liquid Limit, indicating that it has a higher plasticity and can retain more water. In this case, the LL of 35 is lower than expected for a CH soil, suggesting that the soil may not exhibit the desired plasticity and may not perform as expected in certain engineering applications.

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  • 28. 

    Which of the following best describes a cobble?

    • A.

      Grain size greater and ¾ inch

    • B.

      Grain size retained on a #3 sieve

    • C.

      Grain size greater than 3 inches

    • D.

      Grain size between 3 inches and 12 inches

    Correct Answer
    D. Grain size between 3 inches and 12 inches
    Explanation
    A cobble is a type of sedimentary particle that has a grain size between 3 inches and 12 inches. It is larger than a pebble but smaller than a boulder.

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  • 29. 

    If surface irregularities are found when using the nuclear gauge for density testing, the following is appropriate:

    • A.

      Use the backscatter setting

    • B.

      Use no more than 1/8 inch of filler material

    • C.

      Perform a standardization

    • D.

      Use at least 3 mm of filler material

    Correct Answer
    B. Use no more than 1/8 inch of filler material
    Explanation
    When surface irregularities are found when using the nuclear gauge for density testing, it is appropriate to use no more than 1/8 inch of filler material. This is because using too much filler material can affect the accuracy of the density testing. By limiting the amount of filler material to 1/8 inch, the surface irregularities can be accounted for without compromising the accuracy of the test.

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  • 30. 

    How often should a nuclear gauge be standardized?   

    • A.

      Once a day

    • B.

      Every 10 readings

    • C.

      Once a week

    • D.

      Whenever the backscatter setting is used

    Correct Answer
    A. Once a day
    Explanation
    A nuclear gauge should be standardized once a day to ensure accurate and reliable measurements. Standardizing the gauge involves comparing its readings to a known standard to calibrate it. By standardizing daily, any potential drift or changes in the gauge's performance can be detected and corrected promptly, minimizing measurement errors. This frequency of standardization helps maintain the gauge's accuracy and ensures that it is consistently providing reliable data for nuclear density testing.

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  • 31. 

    When performing a standardization check on a nuclear gauge, how many repetitions should be performed?

    • A.

      1

    • B.

      2

    • C.

      3

    • D.

      4

    Correct Answer
    D. 4
    Explanation
    When performing a standardization check on a nuclear gauge, it is recommended to perform four repetitions. This is because repeating the process multiple times helps to ensure accuracy and reliability of the measurements. By taking multiple readings, any inconsistencies or errors can be identified and corrected, leading to more precise and consistent results. Therefore, performing four repetitions is essential for obtaining reliable data from the nuclear gauge.

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  • 32. 

    When using the nuclear gauge in a 3 ft. deep trench, which of the following is not acceptable?

    • A.

      Shore the sides of the trench

    • B.

      Use the nuclear gauge for moisture content

    • C.

      Standardize the nuclear gauge

    • D.

      Use the backscatter setting

    Correct Answer
    B. Use the nuclear gauge for moisture content
    Explanation
    Using the nuclear gauge for moisture content in a 3 ft. deep trench is not acceptable. The nuclear gauge is used to measure the density and compaction of soil, not moisture content. Moisture content is typically measured using other methods such as a moisture meter or a drying oven. Therefore, using the nuclear gauge for moisture content in this context would not provide accurate results.

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  • 33. 

    Given: Weight of sand cone and jar before test is 14.7 lbs. Weight of sand cone and jar after test is 4.2 lbs.  Weight of sand in cone is 3.2 lbs.  Density of sand is 95.3 lbs/ft3.  Weight of the sample obtained from hole is 10.4 lbs.  The moisture content is 3%.  Maximum dry density is 143.6 lbs/ft3.  What is the percent compaction?

    • A.

      91.8%

    • B.

      50.3%

    • C.

      95.4%

    • D.

      109.0%

    Correct Answer
    A. 91.8%
    Explanation
    The percent compaction can be calculated by dividing the dry density of the sample obtained from the hole by the maximum dry density and multiplying by 100.

    Dry density = (Weight of sample obtained from hole - Weight of moisture) / Volume of sample obtained from hole
    Weight of moisture = Weight of sample obtained from hole - Weight of dry sample
    Volume of sample obtained from hole = Weight of sample obtained from hole / Density of sand

    Plugging in the given values:
    Weight of moisture = 10.4 lbs - (10.4 lbs * 0.03) = 10.4 lbs - 0.312 lbs = 10.088 lbs
    Volume of sample obtained from hole = 10.4 lbs / 95.3 lbs/ft3 = 0.109 ft3
    Dry density = (10.4 lbs - 10.088 lbs) / 0.109 ft3 = 3.012 lbs/ft3

    Percent compaction = (3.012 lbs/ft3 / 143.6 lbs/ft3) * 100 = 2.098%

    Therefore, the correct answer is 91.8%.

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  • 34. 

    Given:  A sample has a wet density of 121.4 and a dry density of 108.9.  What is the moisture content?

    • A.

      11.5%

    • B.

      11.3%

    • C.

      10.2%

    • D.

      13.9%

    Correct Answer
    A. 11.5%
    Explanation
    The moisture content can be calculated by subtracting the dry density from the wet density and dividing the result by the dry density. In this case, the calculation would be (121.4 - 108.9) / 108.9 = 0.115 or 11.5%.

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  • 35. 

    Stripping and grubbing verification should be performed:

    • A.

      Prior to grading

    • B.

      During initial clearing

    • C.

      Once vegetation has been removed from site

    • D.

      Once fill has been placed and compacted

    Correct Answer
    A. Prior to grading
    Explanation
    Stripping and grubbing verification should be performed prior to grading to ensure that all vegetation, including trees, shrubs, and roots, has been completely removed from the site. This is important because any remaining vegetation can interfere with the grading process and potentially cause issues with the stability and integrity of the construction project. By verifying that the site is clear of vegetation before grading, the construction team can proceed with confidence and minimize any potential complications that may arise from incomplete vegetation removal.

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  • 36. 

    When using rock fill, nested rock should be used:

    • A.

      When rock size is greater than 36 inches

    • B.

      When depth of excavation exceeds 12 feet

    • C.

      Never

    • D.

      After the rock has been reconsolidated

    Correct Answer
    C. Never
    Explanation
    Nested rock should never be used when using rock fill. Nested rock refers to placing larger rocks within the gaps or spaces between smaller rocks. This practice can lead to instability and poor compaction of the rock fill, which can compromise the overall strength and stability of the structure being built. It is important to ensure proper compaction and uniformity of the rock fill to achieve the desired structural performance.

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  • 37. 

    The removal of subgrade soils is:

    • A.

      Outcropping

    • B.

      Jetting

    • C.

      Reworking

    • D.

      Overexcavation

    Correct Answer
    C. Reworking
    Explanation
    Reworking refers to the process of modifying or improving the subgrade soils by various methods such as adding or removing materials, compacting, or stabilizing. It is a common practice in construction projects to ensure the stability and strength of the foundation. Unlike outcropping, which refers to the exposure of natural rock or soil, jetting, which involves using high-pressure water to loosen and remove soil, and overexcavation, which refers to digging deeper than required, reworking specifically focuses on altering the existing subgrade soils to meet the project requirements.

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  • 38. 

    A static sheepsfoot roller is not recommended for which type of material?

    • A.

      SW

    • B.

      CL

    • C.

      GAB

    • D.

      Rock fill

    Correct Answer
    D. Rock fill
    Explanation
    A static sheepsfoot roller is not recommended for rock fill material because it is not effective in compacting rocks. The sheepsfoot roller is designed for cohesive soils such as SW (well-graded sand with gravel), CL (lean clay), and GAB (graded aggregate base), where the protruding feet or pads on the roller can penetrate and compact the soil. However, rocks are too hard and irregular in shape for the sheepsfoot roller to effectively compact them. Therefore, a different type of compactor or method would be more suitable for compacting rock fill material.

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  • 39. 

    When performing a standard Proctor on a ML soil, what is the minimum standing time of the moisturized specimen?

    • A.

      No requirement

    • B.

      3 hours

    • C.

      8 hours

    • D.

      16 hours

    Correct Answer
    D. 16 hours
    Explanation
    The correct answer is 16 hours because the standard Proctor test requires a minimum standing time of 16 hours for the moisturized specimen. This standing time allows the soil to fully absorb the moisture and reach its maximum density before further testing or analysis is conducted.

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  • 40. 

    For which of the following conditions of retained material by mass shall D698 Method C be used:

    • A.

      40% or less retained on 3/4 sieve

    • B.

      10% or less retained on 3/4 sieve

    • C.

      20% or less retained on 3/4 sieve

    • D.

      30% or less retained on 3/4 sieve

    Correct Answer
    D. 30% or less retained on 3/4 sieve
    Explanation
    D698 Method C should be used when 30% or less of the material is retained on the 3/4 sieve. This method is specifically designed for testing the maximum dry density and optimum moisture content of soils with a maximum particle size of 3/4 inch or smaller. By using this method, engineers and construction professionals can determine the compaction characteristics of the soil and make informed decisions about its suitability for various construction projects.

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  • 41. 

    Refer to page 2 of the plans, what station is inlet A5 at?

    • A.

      2+00

    • B.

      3+25

    • C.

      3+00

    • D.

      0+00

    Correct Answer
    B. 3+25
  • 42. 

    Refer to page 2 of the plans, approximately how many feet of fill will be needed at Station 2+00 from the original grade?

    • A.

      10

    • B.

      8

    • C.

      5

    • D.

      2

    Correct Answer
    C. 5
    Explanation
    Based on the information given, the correct answer is 5. This suggests that at Station 2+00, approximately 5 feet of fill will be needed to reach the desired grade.

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  • 43. 

    Refer to page 2 of the plans, If 81 liner feet of 24 inch pipe extends from inlet A3 to A4, what station would this place inlet A4 at?

    • A.

      81

    • B.

      2+50

    • C.

      2+25

    • D.

      2+31

    Correct Answer
    D. 2+31
    Explanation
    Based on the information provided, if 81 linear feet of 24 inch pipe extends from inlet A3 to A4, it would place inlet A4 at station 2+31.

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  • 44. 

    How many liner feet are between Stations 0+00 and 2+00?

    • A.

      200

    • B.

      20

    • C.

      2

    • D.

      2000

    Correct Answer
    A. 200
    Explanation
    The correct answer is 200. This means that there are 200 linear feet between Stations 0+00 and 2+00.

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  • 45. 

    What is the diameter of the pipe in inches between Yard Inlets A4 and A5?

    • A.

      24

    • B.

      92

    • C.

      12

    • D.

      2

    Correct Answer
    A. 24
    Explanation
    The diameter of the pipe between Yard Inlets A4 and A5 is 24 inches.

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