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Civil Engineering QUESTION #6583
Question 1
The dry density of a moist soil sample in relation to its bulk density is:
  • Greater than the bulk density
  • Equal to the bulk density
  • Less than the bulk density✔️
  • No specific relationship exists
Correct Answer Explanation
Bulk density \(\rho_b = \dfrac{M_{total}}{V}\) includes the mass of water. Dry density \(\rho_d = \dfrac{M_{solids}}{V}\). Since \(M_{total} > M_{solids}\), dry density is always less than bulk density for any moist soil.