api api-580 practice test

The models are evaluated _____________to provide both qualitative and quantitative insights about
the level of risk and to identify the design, site, or operational characteristics that are the most
important to risk

• A. Probabilistically
• B. Statistically
• C. Linearly
• D. Logically

Potential source of errors in rbi analysis regarding data quality are the following except

• A. If the base line thickness were not performed the nominal thickness may be used for the original thickness
• B. If original thickness not available, averaged ut thickness readings may be used
• C. If the original thickness not available, maximum ut thickness readings may be used

Potential source of errors in rbi analysis regarding data quality are the following except

• A. Assumptions in equipment history
• B. Outdated drawings and documentation
• C. Inspector error
• D. Advanced inspection methods

The following assumption can be made that significantly impact the calculated corrosion rate early in
the equipment life

• A. If the base line thickness were not performed the nominal thickness may be used for the original thickness
• B. If original thickness not available, averaged ut thickness readings may be used
• C. If the original thickness not available, maximum ut thickness readings may be used

________________may result in the calculated corrosion rate appearing artificially high or low.

• A. Clerical error
• B. Measurement error
• C. Inspector error
• D. Ut scanning

The data validation step stresses the need for a knowledgeable individual.

• A. To comparing data from the inspections to the expected deterioration mechanism and rates
• B. To compare the results with previous measurements on that system
• C. Similar systems at the site or within the company or published data
• D. All of the above

The amount and type of codes and standards used by a facility can have

• A. Significant impact on rbi results
• B. No impact on rbi results
• C. Less significant impact on rbi results

Who should be consulted to define the equipment deterioration mechanisms, susceptibility and
potential failure modes?

• A. A metallurgist or corrosion specialist
• B. A metallurgist and corrosion specialist
• C. A metallurgist only
• D. Corrosion specialist only

_________are the primary inputs into the probability of failure evaluation.

• A. The deterioration mechanisms, rates and susceptibilities
• B. Loss of containment f fluid
• C. Fluid toxicity and its concentration
• D. Damage mechanisms and its severity

Is key to performing deterioration mechanism identification

• A. Understanding equipment operation and the interaction with the chemical and mechanical environment
• B. Understanding equipment operation and process upsets
• C. Understanding equipment operation and its safety protective measures