API 580 Risk Based Inspection Practice Test

What is one criterion for the elimination of systems from RBI?

1. Historical performance data

2. Cost of inspection

3. Relative risk

4. Time since last inspection

The correct answer is: Relative risk

The criterion for the elimination of systems from Risk-Based Inspection (RBI) focuses on relative risk. In the context of RBI, relative risk assessment is fundamentally aimed at identifying which systems pose the greatest risk to safety, environment, and operations. By evaluating the risk associated with each system in relation to others, organizations can prioritize their inspection efforts and allocate resources more judiciously. Eliminating systems from an RBI program typically occurs when they have a lower relative risk compared to other systems, indicating that they do not contribute significantly to overall risk. This approach not only optimizes resource allocation but also aligns with the core principles of RBI, which emphasize the focus on higher-risk systems that require more attention and management. By utilizing relative risk as a criterion, organizations can ensure that their inspection strategies are both effective and efficient. Other factors like historical performance data, cost of inspection, and the time since the last inspection might inform decisions but do not directly relate to the comparative risk that each system presents, which is the underlying issue RBI aims to address.