The Standard Penetration Test is used to obtain information about which property?

The Standard Penetration Test is used to obtain information about which property?

• A. Hydraulic conductivity
• B. Pore pressure
• C. Geotechnical engineering properties of soil
• D. Soil color

Answer: (C)

The Standard Penetration Test provides information about the geotechnical properties of soil. In the field, a sampler is driven into the ground with a standard hammer and the number of blows required to advance the sampler a set distance is recorded as the N value. This in-situ data helps engineers infer soil strength, estimate relative density in sands and gravels, and relate to other engineering properties used in design. It does not directly measure hydraulic conductivity, which requires permeability tests, nor pore pressure, which comes from pore-pressure measurements, nor soil color, which is determined by visual observation. So the test is best understood as a tool for assessing geotechnical engineering properties of soil.

The Standard Penetration Test provides information about the geotechnical properties of soil. In the field, a sampler is driven into the ground with a standard hammer and the number of blows required to advance the sampler a set distance is recorded as the N value. This in-situ data helps engineers infer soil strength, estimate relative density in sands and gravels, and relate to other engineering properties used in design. It does not directly measure hydraulic conductivity, which requires permeability tests, nor pore pressure, which comes from pore-pressure measurements, nor soil color, which is determined by visual observation. So the test is best understood as a tool for assessing geotechnical engineering properties of soil.