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- 28.02.2026
Top HSE interview questions: The difference between hazard, risk and hierarchy of control
1. Top technical questions in the HSE interview: Key concepts that testers focus on 1-1. Explain the difference between Hazard and Risk with applications from the work environment This question is the "cornerstone" of any HSE interview. A perfect answer should show your ability to accurately distinguish between the two concepts. A hazard is anything that has the inherent potential to cause harm (such as electricity, chemicals, or working at height). Risk is the likelihood of that harm occurring given the severity of the consequences. Applied example: An exposed electrical cord on the floor is a hazard. The likelihood of a worker tripping over it and getting an electric shock is the risk. You should make it clear to the examiner that your role is not limited to identifying hazards, but extends to analyzing the levels of risk and developing controls to reduce them to the lowest practicable level (ALARP). 1-2. Master the Hierarchy of Controls and how to implement it in the field When the tester asks you how you manage risk, you should immediately refer to the Hierarchy of Controls. This concept represents the scientific prioritization of risk control. The hierarchy starts with Elimination, which is the most effective solution, then Substitution, followed by Engineering Controls, Administrative Controls, and finally Personal Protective Equipment (PPE). Interview tip: Always stress that PPE is the last line of defense [...]
