Asbestos Hazard Emergency Response Act (AHERA) Certification Practice Exam

Which group of asbestos fibers is wavy in form?

1. Amosite

2. Crocidolite

3. Anthophyllite

4. Chrysotile

The correct answer is: Chrysotile

Chrysotile, commonly referred to as "white asbestos," is characterized by its wavy or curly fiber structure. This unique morphology allows Chrysotile fibers to be flexible, making them distinct compared to other types of asbestos fibers. The curly form contributes to its use in various materials, such as insulation and fireproofing products, because it can be easily woven into fabrics and mixed into other composite materials. Chrysotile’s wavy structure is significant in both its physical properties and its potential health effects. The flexibility of the fiber can lead to the inhalation of finer particles, making it an important consideration in occupational health and safety. In contrast, the other types of asbestos fibers, such as Amosite (commonly known as "brown asbestos") and Crocidolite (known as "blue asbestos"), have straighter and more needle-like fibers, while Anthophyllite has a more variable structure but does not exhibit the same wavy form as Chrysotile. This distinction is critical in understanding the specific properties and risks associated with different types of asbestos.