OHST Practice Exam

Which principle is fundamental in the hierarchy of hazard control?

1. Elimination

2. Substitution

3. Engineering Controls

4. Administrative Controls

The correct answer is: Elimination

The principle of elimination is fundamental in the hierarchy of hazard control because it focuses on completely removing the hazard from the workplace or environment, thereby preventing any exposure or risk associated with that particular hazard. This approach is the most effective means of ensuring safety, as it addresses the source of the risk instead of merely managing or minimizing it. Identifying and implementing elimination methods may involve redesigning processes or using different materials that do not present hazards at all. This principle sets the stage for subsequent measures—such as substitution, engineering controls, and administrative controls—that come into play when elimination is not feasible or when additional risk mitigation strategies are necessary. Therefore, prioritizing elimination within the hierarchy emphasizes the goal of creating a safer working environment by removing hazards inherently.