RBI plans identify equipment that does not require inspection or some other form of mitigation because of the acceptable level of risk associated with the equipment's current operation. In this way, inspection and maintenance activities can be:

• A. more focused and cost effective.
• B. conducted while the equipment is on-line instead of during turnarounds.
• C. shifted to more profitable needs in the plant.
• D. eliminated for all low consequence equipment.

Which of the following are essential elements of an RBI program? (Select all that apply)

• A. Management system for maintaining documentation and analysis updates
• B. Documented method of determining failure probability and consequence
• C. Management system for personnel qualifications
• D. Process hazard analysis to verify the adequacy of process safety

What is a risk driver?

• A. The primary identifier(s) used to assist in the acceptance or mitigation of found damage.
• B. The primary contributor(s) responsible for a significant share of a risk value.
• C. The primary element(s) to find, list, and characterize probability of failure.
• D. The primary element(s) to find, list, and characterize consequence of failure.

What does sensitivity analysis typically involve?

• A. Reviewing some or all input variables to the risk calculation to determine the overall influence on theresultant risk value
• B. Checking the impact of having more than one damage mechanism progressing toward failure at the same time
• C. Determining what effect the surrounding community may have on the total consequence of the release to the environment
• D. Determining whether a flammable release is more likely to result in an explosion versus a fire versus safe dispersion

Depending on factors such as the remaining life of the equipment and the type of damage mechanism, risk management through inspection:

• A. is the least cost-effective.
• B. is most effective in reducing risk.
• C. may have little or no effect.
• D. results in a decrease in inspection frequencies.