API 580 Risk Based Inspection Practice Test

Which of the following is NOT a unit of measure in COF analysis?

1. Safety-severity of injury

2. Cost-rankings

3. Inspection frequency

4. Affected area

The correct answer is: Inspection frequency

In the context of Consequence of Failure (COF) analysis, the focus is typically on the outcomes associated with a failure event. COF considers factors such as safety-severity of injury, cost-rankings, and the affected area to evaluate how significant the consequences would be if a particular failure were to happen. Safety-severity of injury is a critical aspect because it assesses the potential harm that could occur to individuals in the event of a failure. Cost-rankings help prioritize different failure scenarios based on their financial implications. The affected area measures the scope and impact of possible damages resulting from the failure. In contrast, inspection frequency refers to how often an inspection is carried out and is more related to the management of risks rather than a direct measure of the consequences of failure. This aspect pertains more to the inspection regimes and strategies rather than the potential outcomes associated with a failure, making it not directly relevant to COF analysis. Thus, it does not fit within the established measures used to evaluate the consequences of failure.