API 580 Risk Based Inspection Practice Test

Which of the following describes 'failure mode'?

1. The type of repair needed

2. The manner of failure

3. The likelihood of failure

4. The impact of failure

The correct answer is: The manner of failure

The term "failure mode" specifically refers to the manner in which something fails. This concept encompasses the various ways that a system, component, or process can exhibit failure, including the mechanisms and characteristics of the failure itself. Understanding the failure mode is crucial for identifying potential weaknesses in systems and for developing strategies for mitigation and prevention. By focusing on how failures occur, engineers and risk managers can better assess the risks involved and implement appropriate measures to enhance the reliability and safety of the system. This aspect is fundamental in risk-based inspection practices, as it aids in prioritizing inspections and maintenance efforts based on how failures are likely to manifest. In contrast, the type of repair needed, likelihood of failure, and impact of failure are important considerations in risk management but do not define the ‘failure mode.’ Instead, they relate to the consequences and response to failure once it has occurred rather than how the failure itself arises.