Which of the following is an unsafe act on a jobsite?

• A. Removing safety guards from tools
• B. All of these
• C. Participating in horseplay
• D. Failure to wear a hard hat when required

Answer: (B)

On a jobsite, unsafe acts are actions that increase the chance of injury, regardless of intent. Removing safety guards from tools exposes users to moving parts, belts, or blades, which can cause severe injury and goes against basic machine safety rules. Horseplay introduces distraction and physical risk, making accidents more likely as people move around equipment or operate around others. Not wearing a hard hat when it’s required leaves the head vulnerable to impacts from falling objects or bumps, a common injury risk on construction sites. Because each of these actions is hazardous, the option that covers all of them is the best choice.