Construction Skills Certification Scheme (CSCS) Practice Test

What is the recommended action when encountering hazardous dust?

1. Use a high-efficiency vacuum

2. Leave the area immediately

3. Cover your mouth and nose

4. Talk to a colleague about it

The correct answer is: Use a high-efficiency vacuum

Using a high-efficiency vacuum is the recommended action when encountering hazardous dust because these vacuums are specifically designed to capture fine particles and prevent them from being released back into the air. This is critical in controlling dust exposure, which can have serious health implications, including respiratory issues and other long-term health effects. High-efficiency vacuums are often equipped with HEPA filters, which efficiently trap particulate matter, making them ideal for cleaning up hazardous dust in construction environments. Implementing this method not only minimizes the risk of inhalation by workers but also helps maintain a cleaner and safer work environment. While leaving the area might seem like a sensible course of action, it does not address the underlying issue of dust hazard, which could impact others who may still be in the vicinity. Covering your mouth and nose can provide temporary relief, but it does not eliminate the dust from the environment and may not be effective against all types of hazardous dust. Lastly, while discussing the matter with a colleague can raise awareness, it does not serve as an immediate corrective action to deal with the hazardous dust present in the area.