Manufacturing Skill Standards Council (MSSC) Safety Assessment Practice Test

What should you avoid when using pneumatic tools?

1. Placing hoses across walkways

2. Using compressed air to clean clothing or skin

3. Using the maximum psi available

4. Inspecting tools frequently

The correct answer is: Using compressed air to clean clothing or skin

Using compressed air to clean clothing or skin should be avoided because it poses significant safety risks. Compressed air can force particles of dirt, dust, or other debris into the skin, potentially causing serious injuries or infections. Additionally, the high pressure from compressed air can lead to air embolisms, which can be life-threatening if air enters the bloodstream through a wound. Safety protocols dictate that compressed air should be used for its intended purposes, such as powering tools, but not for personal hygiene. In contrast, the other options focus on practices that may indeed have safety implications, but they do not directly equate to the immediate dangers associated with using compressed air on one's body. For example, placing hoses across walkways can create tripping hazards, and using the maximum psi available may not comply with manufacturer recommendations, potentially causing tool malfunctions or injuries. Regularly inspecting tools is a best practice and critical for maintaining safety and functionality in the workplace.