A clean sand is classified as well graded when its coefficient of uniformity is greater than 6 and its coefficient of curvature lies between:
Correct answer: A. 1.0 and 3.0
- A. 1.0 and 3.0
- B. 0.5 and 1.0
- C. 3.0 and 5.0
- D. 5.0 and 10.0
Explanation
For well-graded sand, Cu must exceed 6 and Cc must lie from 1 to 3. These limits indicate a broad and suitably distributed range of particle sizes.
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About Soil Mechanics and Foundations
Soil mechanics examines index properties, phase relationships, classification, permeability, seepage, compaction, consolidation, shear strength and earth pressure. Foundations apply these principles to bearing capacity, settlement and shallow or deep foundation selection, with clear distinction between compaction, which expels air, and consolidation, which expels water over time.
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