An assessment can be performed using the number system of probability times severity and give a _______________. The higher the number the more probable that there will be an accident.

• A. class of hazard
• B. risk score
• C. hazard rating
• D. severity index

Answer: (A)

In risk assessment, you quantify risk by multiplying how likely an event is by how severe the potential harm could be, producing a risk score. This single number helps compare hazards and decide where to focus controls. The blank should be filled with risk score because it directly represents the combination of probability and severity in one metric. A class of hazard is just a category describing the type of hazard, not a calculated value. A hazard rating is typically a qualitative or separate quantitative judgment of how hazardous something is, not necessarily the product of probability and severity. A severity index looks only at the potential harm’s seriousness, ignoring how likely the event is. Since the question describes the probability×severity method, the risk score is the best fit.