Practice Grain-size Distribution Curve (5.3) - Soil Classification - Geotechnical Engineering

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10 questions

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6 sample questions

Question 1.
What is wet sieving?
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Think about how you would wash sand.
Question 2.
What does D10 represent?
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It's a key point on the grading curve.
3Question 3.
What does the grain-size distribution curve represent?
- Soil color
- Partial size distribution
- Water content
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Consider what aspects of soil are being measured.
4Question 4.
True or False: A higher uniformity coefficient indicates a uniformly graded soil.
- True
- False
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Think about how well the soil is distributed.
Question 5.
A soil sample shows D10 = 0.02 mm, D30 = 0.1 mm, and D60 = 0.5 mm. Calculate the uniformity coefficient (Cu) and curvature coefficient (Cc).
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Remember the formulas for Cu and Cc.
Question 6.
You have two soil samples: Sample A with a straight grading curve and Sample B with a curved grading curve. Discuss the engineering implications of each sample based on its grading characteristics.
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Consider how the shape of the grading curve affects soil behavior.

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