API-580 Exam Dumps : API 580 - Risk Based Inspection

API 580 defines risk mitigation as follows:

“Risk mitigation: Process of selection and implementation of measures to modify risk. The term risk mitigation is sometimes used for measures themselves.”

This definition is provided in Section 3.1.67 of API 580. It is also emphasized throughout the document that mitigation may address either probability or consequence or both, and includes actions such as inspection, maintenance, repair, replacement, and design changes.

As defined in Section 3.1.59 of API 580:

“Risk assessment: The systematic use of information to estimate risk and conduct risk evaluation.”

Option A refers more closely to hazard identification, C is the definition of risk management, and D describes part of the risk analysis process, but not the full definition of risk assessment.

According to Section 5.4 of API 580:

“Risk presented as a precise numeric value (as in a quantitative analysis) implies a greater level of accuracy… However, the implied linkage of precision and accuracy may not exist because of the element of uncertainty that is inherent with probabilities and consequences.”

This clearly supports that Option D is correct. While quantitative methods appear precise, their accuracy may be affected by model limitations, uncertainty, and data variability. Therefore, understanding this distinction helps practitioners avoid overconfidence in the output of RBI tools.