Radiation Safety Practice Exam

Why is steam cleaning used in radiation decontamination?

1. It's safe for all surfaces

2. It is effective for oily surfaces

3. It requires no water

4. It minimizes contamination spread

The correct answer is: It is effective for oily surfaces

Steam cleaning is an effective method for dealing with oily surfaces, particularly in the context of radiation decontamination. This technique utilizes high temperatures, which can break down and emulsify oils and other stubborn contaminants that may harbor radioactive materials. The steam's effectiveness in loosening those oily residues makes it easier to remove not just the oil but also any radioactive particles trapped within it. The high-temperature steam not only aids in cleaning but also helps in sanitizing surfaces, reducing the presence of any harmful microbes or contaminants that may remain after initial cleaning efforts. This ability to tackle complex cleaning challenges associated with radioactive materials makes steam cleaning a valuable tool in decontamination scenarios, especially where oils and other residues may complicate the cleanup process. In contrast, the other options do not accurately capture the primary reason for utilizing steam cleaning in radiation decontamination. While safe on many surfaces, steam cleaning can still require caution on delicate materials. It does require water in the form of steam for its operation, contradicting the idea of not needing water. Finally, while minimizing the spread of contamination is an important aspect of decontamination, the primary focus here is on the effectiveness of steam cleaning for oily residues.