Practice Quiz

Civil Engineering PE

Category - Soil and Materials

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What is the bulk density of a 1.5-liter dry soil sample with a mass of 4.2 kg?
  1. 2.8 kg/m3
  2. 28 kg/m3
  3. 2,800 kg/m3
  4. Not enough information provided
Explanation
Answer: C - The bulk density of a 2-liter dry soil sample with a mass of 4.2 kg is 2,800 kg/m3. The bulk density is a measure of the mass of soil per unit volume.

Solution: Use the following equation to determine bulk density, Db

Db = Mass of dry soil / volume of solids and pore spaces

= (4.2 kg) / [(1.5 liters) x (1 cubic meter (m3)/1,000 liters)]

= 2,800 kg/m3
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