What is the purpose of a risk matrix in safety analysis?

• A. To replace hazard analysis
• B. To categorize and prioritize risks by severity and probability, guiding protective measures.
• C. To measure machine efficiency
• D. To list all hazards alphabetically

Answer: (B)

A risk matrix helps you categorize and prioritize risks by looking at how severe the consequences could be and how likely they are to occur, so you can guide protective measures. It turns complex risk information into a simple visual that shows where controls are most needed and where resources should be focused. This tool supports safety analysis by ranking risks rather than replacing the broader work of identifying hazards and evaluating them. It isn’t about measuring machine efficiency, nor about listing hazards alphabetically. For example, a scenario with severe potential harm and high likelihood is treated as high risk, prompting strong mitigation actions, while low-severity, low-probability scenarios require fewer or lighter controls.