Which of the following is an engineering control example?

• A. A safety on a weapon
• B. Warnings and notices
• C. Training personnel
• D. PPE

Answer: (A)

Engineering controls are changes to the physical design of the equipment or its environment that reduce risk at the source. A safety on a weapon fits this because it is a built-in feature that physically prevents firing or changes how the mechanism operates, thereby reducing the chance of an unintended discharge. It’s part of the weapon’s design, not something you rely on people to do or wear.

The other options sit in different control categories. Warnings and notices provide information to users (administrative controls), training personnel is about changing behavior through instruction (administrative control), and PPE involves personal protective gear worn by the operator. None of these alter the hazard itself the way an engineering control like a safety on a weapon does.