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The laboratory tests on a sample yielded the following results:
Plasticity index : 32%
Liquidity index 0.15
Activity number 1.58
Which of the following inferences can be drawn?
1. The soil is very stiff.
2. The soil is medium soft.
3. The soil is highly plastic,
4. The soil is medium plastic.
5. The soil is active.
Select the correct answer using the codes given below:
  • a)
    1,3 and 5
  • b)
    1,3, and 4
  • c)
    2, 3 and 5
  • d)
    1,2 and 4
Correct answer is option 'A'. Can you explain this answer?
Verified Answer
The laboratory tests on a sample yielded the following results:Plastic...


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Most Upvoted Answer
The laboratory tests on a sample yielded the following results:Plastic...
Explanation:

To determine the characteristics of the soil based on the laboratory test results, we need to understand the meaning of each parameter.

Plasticity Index:
The plasticity index (PI) is a measure of the range of moisture content within which the soil exhibits plastic behavior. It is calculated by subtracting the liquid limit (LL) from the plastic limit (PL).

Liquidity Index:
The liquidity index (LI) is a measure of the consistency of the soil. It is calculated by dividing the plasticity index (PI) by the difference between the liquid limit (LL) and the plastic limit (PL).

Activity Number:
The activity number (AN) is a measure of the sensitivity of the soil to changes in moisture content. It is calculated by dividing the plasticity index (PI) by the clay fraction of the soil.

Based on the given values:

Plasticity index: 32%
Liquidity index: 0.15
Activity number: 1.58

Inferences:
1. The soil is very stiff: This inference cannot be drawn as the plasticity index does not provide direct information about the stiffness of the soil.
2. The soil is medium soft: This inference cannot be drawn as the plasticity index does not provide direct information about the softness of the soil.
3. The soil is highly plastic: The plasticity index of 32% indicates that the soil is highly plastic. A high plasticity index suggests that the soil has a large moisture range over which it exhibits plastic behavior.
4. The soil is medium plastic: This inference cannot be drawn based on the given values.
5. The soil is active: The activity number of 1.58 indicates that the soil is active. A high activity number suggests that the soil is highly sensitive to changes in moisture content.

Conclusion:
Based on the given laboratory test results, the following inferences can be drawn:
- The soil is highly plastic.
- The soil is active.

Therefore, the correct answer is option 'A' - 1, 3, and 5.
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The laboratory tests on a sample yielded the following results:Plasticity index : 32%Liquidity index 0.15Activity number 1.58Which of the following inferences can be drawn?1. The soil is very stiff.2. The soil is medium soft.3. The soil is highly plastic,4. The soil is medium plastic.5. The soil is active.Select the correct answer using the codes given below:a)1,3 and 5b)1,3, and 4c)2, 3 and 5d)1,2 and 4Correct answer is option 'A'. Can you explain this answer?
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The laboratory tests on a sample yielded the following results:Plasticity index : 32%Liquidity index 0.15Activity number 1.58Which of the following inferences can be drawn?1. The soil is very stiff.2. The soil is medium soft.3. The soil is highly plastic,4. The soil is medium plastic.5. The soil is active.Select the correct answer using the codes given below:a)1,3 and 5b)1,3, and 4c)2, 3 and 5d)1,2 and 4Correct answer is option 'A'. Can you explain this answer? for Civil Engineering (CE) 2024 is part of Civil Engineering (CE) preparation. The Question and answers have been prepared according to the Civil Engineering (CE) exam syllabus. Information about The laboratory tests on a sample yielded the following results:Plasticity index : 32%Liquidity index 0.15Activity number 1.58Which of the following inferences can be drawn?1. The soil is very stiff.2. The soil is medium soft.3. The soil is highly plastic,4. The soil is medium plastic.5. The soil is active.Select the correct answer using the codes given below:a)1,3 and 5b)1,3, and 4c)2, 3 and 5d)1,2 and 4Correct answer is option 'A'. Can you explain this answer? covers all topics & solutions for Civil Engineering (CE) 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for The laboratory tests on a sample yielded the following results:Plasticity index : 32%Liquidity index 0.15Activity number 1.58Which of the following inferences can be drawn?1. The soil is very stiff.2. The soil is medium soft.3. The soil is highly plastic,4. The soil is medium plastic.5. The soil is active.Select the correct answer using the codes given below:a)1,3 and 5b)1,3, and 4c)2, 3 and 5d)1,2 and 4Correct answer is option 'A'. Can you explain this answer?.
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