Question 1

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 at thickness readings may be used
C) If the original thickness not available, maximum at thickness readings may be used

Accepted Answer

Choices B and C are valid alternatives when the original thickness is not available. However, not performing baseline thickness measurements can introduce significant errors in the RBI analysis as it is the reference point for calculating the remaining thickness.

Question 2

RBI may include methodologies to assess the effectiveness of the management systems in maintaining
A) Mechanical integrity
B) Total asset integrity
C) Plant integrity

Accepted Answer

Mechanical integrity refers to the ability of a system to withstand the stresses and loads that it is subjected to. It is important to assess the effectiveness of the management systems in maintaining mechanical integrity in order to ensure the safety and reliability of the system.

Question 3

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

Accepted Answer

D

Question 4

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 at thickness readings may be used
C) If the original thickness not available, maximum at thickness readings may be used

Accepted Answer

If the baseline thickness measurement is not performed, it may not be possible to accurately determine the original thickness of the equipment. This could result in using the nominal thickness, which may not be accurate, and therefore significantly affect the calculated corrosion rate early in the equipment life. Options B and C relate to situations where the original thickness is not available, but assuming the baseline measurement was done, these options would not significantly impact the calculated corrosion rate early in the equipment life.

Question 5

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

Accepted Answer

While assumptions in equipment history, outdated drawings and documentation, and inspector error can all lead to errors in RBI analysis regarding data quality, advanced inspection methods are not a potential source of error. In fact, the use of advanced inspection methods can actually improve the accuracy and reliability of the data used in RBI analysis.

Question 6

___________ is usually not the primary objective of a RBI assessment, but it is frequently a side effect of optimization.
A) Reducing inspection costs
B) Increasing inspection costs
C) Increasing frequency of inspection programs

Accepted Answer

The primary objective of a Risk-Based Inspection (RBI) assessment is to identify and prioritize potential failure modes in order to optimize inspection strategies and reduce the risk of equipment failure. While reducing inspection costs is often a benefit of optimizing these strategies, it is not the main objective of the assessment. Increasing inspection costs and frequency of inspection programs are not typically desired outcomes of RBI assessments.

Question 7

_________ 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

Accepted Answer

The deterioration mechanisms, rates and susceptibilities are the primary inputs into the probability of failure evaluation. This includes the understanding of how the material is likely to degrade over time and the rates of degradation.

Question 8

________________ may result in the calculated corrosion rate appearing artificially high or low.
A) Clerical error
B) Measurement error
C) Inspector error
D) At scanning

Accepted Answer

Measurement errors, such as incorrect placement of electrodes or inconsistent sampling, can lead to inaccurate corrosion rate calculations. This can make the corrosion rate appear artificially high or low. Clerical errors or inspector errors may affect the accuracy of the data, but they are not directly related to the calculation of the corrosion rate. "At scanning" is not a clear option and does not provide enough context to determine its relevance to the question.

Question 9

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

Accepted Answer

The answer of Who should be consulted to define the...

Question 10

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

Accepted Answer

Understanding equipment operation and the interaction with the chemical and mechanical environment is essential to identify the deterioration mechanisms that affect equipment performance and reliability. This involves analyzing the materials, operating conditions, corrosion and erosion factors, and other variables that could affect equipment integrity over time. Understanding process upsets and safety protective measures may also be useful, but they are not the primary factors in identifying deterioration mechanisms.

Question 11

Loss of containment is
A) Loss of fluid to the external environment
B) Container loss at the port authority
C) Risk related to containers
D) B&C

Accepted Answer

Loss of containment refers to the escape of a fluid or substance from its container into the external environment.

Question 12

______________ to be established to judge acceptability of risk could he an objective of the RBI assessment if such criteria do not exist already within the user's company.
A) Risk criteria
B) Risk plan
C) Risk analysis

Accepted Answer

If the user's company does not have established criteria for judging the acceptability of risk, then the objective of the RBI assessment could be to develop and establish those criteria, which would be referred to as risk criteria. Options B) and C) do not address this specific need.

Question 13

When the inspection program is optimized based on an understanding of risk, one or more of the following cost reduction benefits may be realized. Except one
A) Ineffective, unnecessary or inappropriate inspection activities may be eliminated
B) Effective, necessary or appropriate inspection activities may be eliminated
C) On-line or non-invasive inspection methods may be substituted for invasive methods that require equipment shutdown
D) More effective infrequent inspections may be substituted for less effective frequent inspections

Accepted Answer

Effective, necessary or appropriate inspection activities should not be eliminated, as this could lead to unmitigated risks and potentially costly failures. The other options listed are all potential cost reduction benefits of optimizing the inspection program based on risk.

Question 14

Generally, a qualitative analysis using broad ranges requires a __________________ from the user than a quantitative approach.
A) Higher level of judgment, skill and understanding
B) Lower level of judgment, skill and understanding

Accepted Answer

Qualitative analysis using broad ranges requires a higher level of judgment, skill, and understanding from the user because it involves subjective interpretation rather than objective measurements. Quantitative approaches rely more on data and statistical methods, making them more objective and easier to use with less expertise needed.

Question 15

The following are the risks identified by RBI assessment that may be managed by actions other than inspection. Except one
A) Modification of the process to eliminate conditions driving the risk
B) Modification of operating procedures to avoid situations driving the risk
C) Chemical treatment of the process to reduce deterioration rates/susceptibilities
D) Identifying and detecting deterioration and predicting future deterioration states with advanced inspection technique(s)

Accepted Answer

Identifying and detecting deterioration and predicting future deterioration states with advanced inspection techniques is directly related to inspection, unlike the other options which involve process or procedural modifications.

Question 16

Equipment reliability is especially important if leaks can be caused by
A) Secondary failures, such as loss of utilities
B) Primary failures such as leak due to severe corrosion
C) Tertiary failures due to valve gland packing leak

Accepted Answer

Primary failures such as leaks due to severe corrosion can directly cause leaks, whereas secondary and tertiary failures may indirectly contribute to leaks. Therefore, equipment reliability is most important for preventing primary failures.

Question 17

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

Accepted Answer

The amount and type of codes and standards used by a facility can have a significant impact on RBI (Risk Based Inspection) results. RBI is a process used to assess and manage risk associated with equipment and facilities in the oil and gas industry. The use of codes and standards provide a basis for design and construction of equipment and facilities, and failure to comply with these can result in increased risk and potential failure. Therefore, the amount and type of codes and standards used by a facility plays a crucial role in determining the risk level and the likelihood of equipment failure.

Question 18

For qualitative RBI analysis it is important to establish a set of rules to assure consistency in
A) Categorization or classification
B) Segregation
C) Ranking

Accepted Answer

Categorization or classification is important for qualitative RBI analysis to ensure consistency in the analysis.

Question 19

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

Accepted Answer

The data validation step requires a knowledgeable individual to compare data from the inspections to the expected deterioration mechanism and rates, compare results with previous measurements on that system, and consider similar systems at the site or within the company or published data. This ensures that the data is accurate and reliable.

Question 20

Reliability efforts, such as reliability centered maintenance (REM), can be linked with RBI, resulting in an integrated program to
A) Reduce downtime in an operating unit
B) Reduce operating time of a unit
C) To reduce risk by mitigation activities

Accepted Answer

Reliability efforts like REM aim to enhance the reliability and availability of equipment, which in turn reduces downtime in an operating unit.

Exam 2: Risk Based Inspection

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

RBI may include methodologies to assess the effectiveness of the management systems in maintaining

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

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

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

___________ is usually not the primary objective of a RBI assessment, but it is frequently a side effect of optimization.

_________ are the primary inputs into the probability of failure evaluation.

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

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

Is key to performing deterioration mechanism identification

Loss of containment is

______________ to be established to judge acceptability of risk could he an objective of the RBI assessment if such criteria do not exist already within the user's company.

When the inspection program is optimized based on an understanding of risk, one or more of the following cost reduction benefits may be realized. Except one

Generally, a qualitative analysis using broad ranges requires a __________________ from the user than a quantitative approach.

The following are the risks identified by RBI assessment that may be managed by actions other than inspection. Except one

Equipment reliability is especially important if leaks can be caused by

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

For qualitative RBI analysis it is important to establish a set of rules to assure consistency in

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

Reliability efforts, such as reliability centered maintenance (REM) , can be linked with RBI, resulting in an integrated program to