CHST Practice Test – Complete Exam Preparation

Question: 1 / 460

How is risk best defined in the context of health and safety?

Probability x consequence

In the context of health and safety, risk is best defined as the product of the probability of a harmful event occurring and the consequence or impact of that event if it does occur. This perspective recognizes that assessing risk involves looking not just at how likely an event is, but also at the severity of the potential outcomes.

Considering this definition, the first option accurately captures the essence of risk assessment in health and safety, as it combines both the likelihood of an incident happening and the seriousness of its impact.

While the other options may incorporate aspects of risk analysis—such as severity or exposure levels—they do not encapsulate the comprehensive calculation that risk actually represents. Therefore, focusing on probability and consequence offers a clearer and more effective method for assessing and prioritizing risks in health and safety management, making it the most suitable definition.

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Impact x frequency

Exposure level x duration

Severity x likelihood

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