API 580 Risk Based Inspection Practice Test

Which step follows identifying damage mechanisms and damage modes in risk analysis?

1. Determine risk

2. Evaluate residual risk

3. Assess the likelihood of occurrence

4. Initiate inspection plans

The correct answer is: Assess the likelihood of occurrence

Following the identification of damage mechanisms and damage modes in risk analysis, the next logical step is to assess the likelihood of occurrence. This step involves evaluating how likely it is that the previously identified damage modes will actually manifest in the equipment or structure under consideration. By assessing the likelihood, professionals can understand the potential frequency of failures, which informs risk assessment and management strategies in a comprehensive manner. Understanding the likelihood of occurrence allows practitioners to prioritize their attention and resources based on which damage mechanisms pose a greater risk, ensuring that risk management efforts are focused where they are most needed. This assessment is foundational in creating effective inspection strategies and maintenance plans that align with the actual risks present, thus enhancing the safety and reliability of operations.