What happens to soil that is classified as Class A?

Soil classified as Class A is characterized by being stable and having low potential for collapse. This classification indicates that Class A soil is cohesive with a high shear strength, which makes it relatively resistant to erosion and other disturbances. Such soils can hold their structure effectively, allowing for safe excavation operations.

When considering the correct option, Class A soil indeed has properties that suggest it cannot easily be fissured or vibrated due to its cohesive nature. This means that the structural integrity of the soil remains intact under typical excavation conditions, reducing the likelihood of sudden failure. The ability of Class A soil to maintain stability under pressure is crucial for providing a safe environment for workers and ongoing operations.

While other characteristics of Class A soil pertain to its general stability and cohesiveness, the emphasis on its inability to be easily fissured or vibrated highlights why it is considered the safer option in excavation activities.