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Multiple Choice

What characterizes the grain size curve for a uniform soil?

A uniform soil is characterized by having a grain size that is relatively consistent, meaning that the particles are of a similar size. This consistency results in a grain size distribution curve that is narrow. A narrow grain size curve indicates that most of the soil particles fall within a specific size range, leading to a small variation in particle sizes. In contrast to more complex soil types, which may exhibit a wide grain size curve with peaks or multiple humps due to a higher variety of particle sizes, a uniform soil's narrow distribution signifies minimal deviation from the average particle size. This characteristic of uniformity influences the soil's behavior in various applications, including drainage and compaction, as it leads to predictable engineering properties. Thus, the defining feature of a uniform soil is indeed this narrow grain size curve, which reflects the homogeneity of the particle sizes present within the soil sample.

A uniform soil is characterized by having a grain size that is relatively consistent, meaning that the particles are of a similar size. This consistency results in a grain size distribution curve that is narrow. A narrow grain size curve indicates that most of the soil particles fall within a specific size range, leading to a small variation in particle sizes.

In contrast to more complex soil types, which may exhibit a wide grain size curve with peaks or multiple humps due to a higher variety of particle sizes, a uniform soil's narrow distribution signifies minimal deviation from the average particle size. This characteristic of uniformity influences the soil's behavior in various applications, including drainage and compaction, as it leads to predictable engineering properties.

Thus, the defining feature of a uniform soil is indeed this narrow grain size curve, which reflects the homogeneity of the particle sizes present within the soil sample.