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Q: Which of the following properties should the subgrade soil have in order to be used as highway material?
  • A. Ease of compaction, compressibility, stability
  • B. Large changes in volume under adverse conditions of weather, compressibility, good drainage
  • C. Large changes in volume under adverse conditions of weather, stability
  • D. Stability, incompressibility, good drainage
Correct Answer: Option D - The following properties should the sub-grade soil have in order to be used as highway material– 1. Stability 2. Incompressibility 3. Good drainage 4. Ease of compaction 5. Permanency of strength 6. Minimum changes in volume and stability under adverse conditions of weather and groundwater.
D. The following properties should the sub-grade soil have in order to be used as highway material– 1. Stability 2. Incompressibility 3. Good drainage 4. Ease of compaction 5. Permanency of strength 6. Minimum changes in volume and stability under adverse conditions of weather and groundwater.

Explanations:

The following properties should the sub-grade soil have in order to be used as highway material– 1. Stability 2. Incompressibility 3. Good drainage 4. Ease of compaction 5. Permanency of strength 6. Minimum changes in volume and stability under adverse conditions of weather and groundwater.