Which of the following describes poorly-graded soils?

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Multiple Choice

Which of the following describes poorly-graded soils?

The characteristic that best describes poorly-graded soils is that they have almost uniform particle sizes. In geotechnical engineering and soil mechanics, this means that the soil consists mainly of particles that are similar in size, leading to a lack of grain size diversity. Poorly-graded soils have limited ability to pack closely together, which can result in poor drainage and lower shear strength compared to well-graded soils, which include a range of particle sizes that helps achieve better packing and stability. In contrast, the other options fail to define poorly-graded soils correctly. For instance, soils containing a wide range of particle sizes are considered well-graded, as this variety allows for better interlocking and structural integrity. Additionally, soils that are predominantly composed of fine materials or well-compacted soils do not exclusively relate to gradation quality. Poorly-graded soils can have a variety of cohesive or granular types that may or may not be compacted, but their predominant feature is the uniformity in particle size.

The characteristic that best describes poorly-graded soils is that they have almost uniform particle sizes. In geotechnical engineering and soil mechanics, this means that the soil consists mainly of particles that are similar in size, leading to a lack of grain size diversity. Poorly-graded soils have limited ability to pack closely together, which can result in poor drainage and lower shear strength compared to well-graded soils, which include a range of particle sizes that helps achieve better packing and stability.

In contrast, the other options fail to define poorly-graded soils correctly. For instance, soils containing a wide range of particle sizes are considered well-graded, as this variety allows for better interlocking and structural integrity. Additionally, soils that are predominantly composed of fine materials or well-compacted soils do not exclusively relate to gradation quality. Poorly-graded soils can have a variety of cohesive or granular types that may or may not be compacted, but their predominant feature is the uniformity in particle size.

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