API 580 Practice Questions PT 1

 

API 580 Risk-Based Inspection

Practice Questions (Part 1) 1.

In RBI, whic which h of the following is the term for an event at a facility that is caused by something beyond the direct or indirect control of employees? a) Indeterminate event b) External event @ c) Unassigned event d) Relative risk

2.

As a member of an RBI assessment team, an equipment in inspector spector or inspection specialist is responsible for a) b) c) d)

3.

This risk to a given facility, process unit, syste system, m, equipment item, or component as compared to similar item is referred to as: a) b) c) d)

4.

 Absolute Risk Relative Risk @ Qualitative risk Quantitative risk

RBI is focused on the systematic determination of a) b) c) d)

5.

Gathering data on the condition and history of the equipment @ Documenting the RBI assessment Following to ensure that appropriate risk mitigation has been implemented  Assessing the types of of deterioration mechanisms and their their applicability and severity severity

Consequence risk Inspection risk  Absolute risk Relative risk @

Residual risk is defined as the: a)  Acceptable risk threshold by the site risk management proc process ess b) Risk identified after RBI analysis c) Risk that remains after inspection d) Risk that remains after mitigation @

6.

Risk based inspection is a) Used by many companies, government, and regulatory authorities to determine risk

acceptance b) Containment of equipment @ c) Primarily intended to be utilized to reduce total life cycles costs d)  A tool for which the data remains current current as long as the operating parameters parameters do not change 7.

Which of the following statements is correct with regards to assumptions in an RBI analysis shows the nature and extent of equipment deterioration? a) They should be clearly documented in the final assessment @

 

b) They are often unpredictable c) They must be confirmed by a corrosion engineer d) They can be risky unless corroborated by field f ield observations

8.

Which of the following should be identified at the beginning of an RBI asses assessment? sment? a) b) c) d)

9.

Data to be used @ Plans used by similar facilities Person with sole responsibility for preparing the plan Person who will obtain jurisdictional j urisdictional authority approval

Which ty type pe of RBI ty typically pically requires detaile detailed d in information formation and data for models? a) b) c) d)

Quantitative @ Semi-quantitative Qualitative Semi-qualitative

10. Inspectors and inspection enginee engineers rs typically reduce the risk associated with deterioration mechanisms by reducing a) Only the probability of failure @ b) Primarily the consequence of failure c) Both the probability and consequence of failure d) The intervals between inspection

11. The accuracy o off results from a qualitative analysis depends on a) b) c) d)

the discrete values of the input data Whether performed by an owner/user or non-owner/user The background and expertise of the analysis @ The integration of detailed assessments

12. How does an ISO-risk line on a risk plo plott help with inspection planning? planning? a) b) c) d)

It shows how risks are changing over time It improves understanding of the relative risks of equipment @ It determines the urgency of the next inspection It assists in optimizing the inspection and mitigation plans

13. The removal of deadleg is an example of: a) b) c) d)

Modifying the process Mitigation the probability of failure @ Modifying the physical design to control inventory Mitigating the consequence of failure

14. In RBI process, intern internal al inspection: a) is the preferred method of inspection b) actually to an item @ c) May Eliminates theincrease need forrisk external i nspection inspection d) Is worth the additional cost

15. In RBI the inspection plan sh should ould specify the:

 

  a) b) c) d)

Type, scope and timing of inspection @ Risk ranking of each piece of equipment Deterioration mechanisms and anticipated failure modes Probability of failure before mitigation

16. When risk acceptability criteria are being established, it is generally recognized that: a) b) c) d)

Every failure will lead to an undesirable incident of serious consequence Some incidents of serious consequence have a very high probability Every failure will lead to some undesirable consequence Not every failure will lead to an undesirable incident or consequence consequence @

17. Which of the following is methodology that will increase precision of an RBI analysis? a) b) c) d)

 A high level of confidence in all previous previous inspection techniques techniques Identifying and assessing all probable deterioration mechanisms The use of high-quality data and knowledgeable personnel @  A quantitative assessment assessment approach that uses log logic ic and physical models

18. All of the following are essential eleme elements nts of an RBI program except: a) Documented method of managing risk through inspection and mitigation activities b) Management system for maintaining documentation and analysis updates c) Process hazard analysis to verify the adequacy of unit design @ d) Documented method of determining failure probability and consequence

19. Which of the following is a major deterioration mechanism category in the hydrocarbon and chemical industry? a) b) c) d)

Mechanical damage @ Brittle fracture Material thickness Weld defect

20. The RBI methodology is intended to: a) b) c) d)

Complement over safety initiatives @ Replace mechanical integrity programs Replace overly restrictive regulatory requirements Replace intrusive inspection

21. Inspection activities help ma manage nage risk by: a) b) c) d)

Mitigation risk Reducing uncertainty @ Identifying risk Identifying deterioration mechanisms

22. In RBI assessment, the purpose of establishing operational bou boundaries ndaries is to: a) b) c) d)

Identify key process parameters that may impact deterioration @  Avoid unanticipated deterioration deterioration Exclude non-normal operating anomalies Ensure that a unit operates within an acceptable design envelope

 

  23. The plan resulting from a detailed description of an RBI assessment for each piece of equipment will specify: a) b) c) d)

Proposed mitigation plans Consequence and probability of failure Timing of inspections @ Risk levels before inspection

24. An RBI program should: a) b) c) d)

Be utilized for continuous improvemen improvementt Document its method of determining probability and consequence of failure Identify all possible consequence of failure Reduce the overall risk for the equipment and facility being assessed @

25. Which of the following is not an ex expression pression of frequency? a) b) c) d)

Failures per run Mils per year @ Low rate Failures per year

26. If theisscope of an assess assessment ment is a multi-unit facility, then the first step in the application o off RBI a) b) c) d)

Screening process units to rank relative risks @ Collecting data and information on each process unit Establishing the operating boundaries of the equipment Selecting the type and level of RBI assessment to be conducted

27. In which of the following situations is there usually a potential risk management through inspection? a) b) c) d)

Risk is dominated by consequence Deterioration mechanism is high-cycle fatigue cracking Risk is dominated by probability @ Failures are even driven

28. Inspection optimization is: a) The next generation of inspection programs after time-based t ime-based and condition-based

inspection b) The point at which additional inspection begins to show a diminishing reduction of risk ris k @ c) Continuous improvement of the RBI program with risk reassessment for changing conditions d) The lowest possible total cost for an inspection program 29. Consequence is defined as: a) b) c) d)

Outcome of an event @ Failure of pressure equipment  A negative event Occurrence of a particular set of circumstances

 

  30. With regard to environmental consequences consequences,, the RBI program typically focuses on: a) b) c) d)

Carcinogenic agents Chronic risks  Acute risks @ Long-terms risks

31. The RBI process is ex expected pected to: a) Calculate a risk level for every piece of pressure equipment in a plant b) Establish an acceptable risk level for the inspection, repair or replacement activity c) Determine linkage of risks with appropriate inspection or other risk mitigation activities

@ d) Present all risk management activities for reducing likelihood and consequence failure 32. Which of the following is an exa example mple of a failure mode? a) b) c) d)

Loss of strength  A small hole @ Fatigue damage Chloride stress corrosion

33. Which of the following statements ab about out the risk mitigation activities is correct? a) b) c) d)

 All methods reduce the magnitude magnitude of consequence consequence or the probability of failure Inspection is not always the most cost effective method @ The most important method is equipment repair and replacement Inspection is the most cost effective method

34. Metallurgical and environment environmental al deterioration typically inv involve: olve: a) b) c) d)

Loss of ductility and strength Mechanical and/or physical property deterioration @ High temperature creep and/or cracking High temperature hydrogen attach (HTHA)

35. Which of the following is one of the primary c considerations onsiderations in determining determining failure probability? a) b) c) d)

 Age of equipment Failure mode Deterioration mechanisms @ Inspection effectiveness

36. The time frame over which an RBI a analysis nalysis is applicable should: should: a) Be based only on the time dependence of deterioration mechanisms b) Be defined and captured in the final documentation@ c) Be considered in the analysis but not included in the final documentation d) Not be allowed to unduly influence the tracking and management risk

37. Analysis and probability of failure sh should ould address: a) Potential for adverse consequences resulting from a release

 

b) Failure modes that will lead to the t he highest consequence c)  All deterioration mechanisms to which which the equipment is susceptible susceptible @ d)  Anything that might cause a release release of hazardous substances

38. Which of the following statements is correct with regard to establishing an inspection strategy? a) The level of risk reduction achieved by the inspection is not related to the interval

between deterioration state and equipment failure b) Inspection is only effective if the technique adequately detects the severity of deterioration @ c) High risk equipment items require more extensive methods of nondestructive evaluation d) The close the equipment is to retirement, the greater the need for frequent f requent inspections 39. With regard to initial assumptions in RBI analysis, which of the following statements is correct? a) Consequence and probability estimates that are too conservative can result in

unnecessarily inflated calculated risks @ b) Consequence and probability estimates that are more conservative with result in less intrusive inspections c) Conservative consequence and probability estimates will be necessary to meet regulatory requirements

d) Conservative consequence and probability estimates result in improved regulatory

compliance 40. Risk management through inspectio inspections ns may have little or no effect in situations involving a) b) c) d)

New equipment with unknown corrosion rates Low consequence of failure  A long time between onset deterioration deterioration and final failure Instantaneous failures related to operating conditions @

41. One of the factors in determining the pro probability bability of failure caused by deterioration is the a) b) c) d)

Uncertainty of process operations Maximum allowable working pressure Likelihood of rupture Rate of deterioration @

42. An RBI assessment should be conducte conducted d after all of the following except a) b) c) d)

 An equipment re-rate @ Each significant change of risk Implementation of mitigation strategies  A default maximum time period

43. The qualification for risk analysis for RBI inclu include de a) b) c) d)

Materials and Knowledge of corrosion the process unit  API RBI certification Detailed training on the RBI methodology being used @

 

44. Risk is defined as the combination of the: a) Probability of failure and probability of consequences consequences b) Probability of an event and its consequences @ c) Loss of containment d) Probability of failure from fr om identified deterioration mechanisms 45. Probability of failure is most commonly ex expressed pressed in terms of a) b) c) d)

Events per year Number of events Frequency @ Likelihood of failure mode

46. Key elements of an RBI program inclu include de a) Identification of equipment that does not require inspection or other means of reducing

the likelihood of failure b)  An overall reduction in risk for the facilities and and all the equipment assessed assessed c)  An acceptance and understanding understanding of the risk for each item before and after inspection d) Management system for maintaining documentation, personnel qualifications, data requirements, and analysis updates @ 47. Which of the following is least likely to requ require ire a risk-based inspection (RBI) reassessment? a) b) c) d)

Changing process conditions to more aggressive feedstock Installation of effective risk mitigation devices Increases of rates of deterioration mechanisms Changing from internal to on-stream inspections @

48. Which of the following statements is correct w with ith regard to equipment items with risks deemed acceptable by RBI analysis? a) b) c) d)

Inspection interval should be lengthened Inspection effectiveness should be adjusted Equipment should be removed from inspection programs No further mitigation is necessary @

49. Which of the following statements is correc correctt with regard to the results of quantitative analysis? a) b) c) d)

They normally provide an initial screening with which to rank units for attention They are usually numeric and should be comparable @ They must be included in the documentation of any RBI evaluation They are more accurate than the results of qualitative analysis

50. RBI contributes to reduction of overall life-cy life-cycle cle costs by a) Using less expensive inspection techniques b) Increasing the number of internal inspections c) Increasing the number of nonintrusive inspections d) Cost Benefit Assessments @

51. For RBI methods, sensitiv sensitivity ity analysis is

 

a) Employed only when the risk matrix indicates that the risk is high b) Normally employed to determine the effects of dominant failure mechanisms for each

piece of equipment studied c)  A review of input variables in a risk calculation calculation to determine their influence on the risk variables @ d) Based on statistical analysis that uses historical data gathered from a particular facility to develop a better understanding of the risk value 52. Which of the following statements is correct with regard to equipment items with risks deemed acceptable by RBI analysis? a) b) c) d)

Inspection interval should be tightened Inspection effectiveness should be adjusted Equipment should be removed from inspection programs No further mitigation is necessary @

53. Which of the following statements is correc correctt with regard to the results of quantitative analysis? a) b) c) d)

They normally provide an initial screening with which to rank units for attention They are usually numeric and should be comparable @ They must be included in the documentation of any RBI evaluation They are more accurate that the results of a qualitative analysis

54. In RBI, residual factors for loss of containme containment nt include all of the following except a) b) c) d)

Human Error Unknown mechanisms of deterioration Inspection efforts @ Secondary effects from nearby units

55. Compared to quantitative analysis, qualitative analysis analysis using broad ranges generally requires a) b) c) d)

 A lower level of judgement, skill, and understanding understanding Greater accuracy in data input to compensate for lower precision of the models Higher level of judgment, skill, and understanding @ Better training in understanding the impact of data quality

56. In RBI investigation, consequence analy analysis sis is intended to provide a measure of the a) b) c) d)

Mitigations necessary to reduce risk Overall risk of a potential failure Maximum liability for a failure Significance of a potential failure @

57. Risk reduction is: a) Synonymous with risk management b) Synonymous with inspection optimization c) Part of risk management @ d)  Achieved only by inspection

58. The value of a qualitativ qualitative e approach is that:

 

a) b) c) d)

the risk assessment process is much faster It uses logic models that depict combinations of events It enables completion of a risk assessment in the absence of detailed data @ It produces relative risk numbers rather than absolute risk numbers

59. RBI contributes to reduction of ov overall erall life-cycle costs by: a) b) c) d)

using less expensive inspection techniques Increasing the number of internal inspections Increasing the number of non-intrusive inspections Enhancing the prediction of failure caused by deterioration mechanisms @

60. Which of the following is the most important to the success of risk management by emergency isolation? a) b) c) d)

Operations surveillance Chain-wheel-operated gate valves Fire deluge systems Proper isolation valve locations @

61. For RBI methods, sensitivity analysis analysis is: a) Employed only when the risk matrix indicates that the risk is high b) Normally employed to determine the effects of dominate failure mechanisms for each

piece of equipment studied c)  A review of input variables in a risk calculation calculation to determine their influence on the risk variables @ d) Based on statistical analysis that uses historical data gathered from a particular facility to develop a better understanding of the risk value

62. The suitability and current condition of equipment within the current operating envelope will determine the: a) b) c) d)

Consequence of failure Probability of failure @ Total risk Likelihood

63. The urgency of performing inspection activities depends depends primarily upon: a) b) c) d)

The magnitude of the consequence The level of unmitigated risk @ Previous inspection findings and corrosion rates Jurisdictional requirements

64. Which of the following statements is correct w with ith regards to use of RBI for managing inspection costs? a) Equipment integrity should remain the primary focus @ b) RBI will eliminate some inspections c) In-Stream inspections are not as effective as internal inspections d) RBI will probably raise the total costs of inspection for a given unit

65. A computerized database is:

 

a) b) c) d)

Required for inspection record keeping Necessary for conducting the risk analysis Important for stewarding recommendations @ Necessary for categorizing the risk levels and risk management

66. Which of the following may make it impractical to reduce some risks to an acceptable level? a) b) c) d)

Labor constraints Cost constraints @ Regulatory requirements Production needs

67. This risk to a given facility, proc process ess unit, system, equipment item, or componen componentt as compared to similar item is referred to as: a) b) c) d)

 Absolute Risk Relative Risk @ Qualitative risk Quantitative risk

68. It should be noted that damage mechanisms are not the only causes of loss of containment. Other causes of loss of containment could include but are not limited to the following, except: (9.1) a) b) c) d) e)

Seismic activity Operator error Equipment review @ Sabotage Design error

69. As is true in any inspection program, data validation is essential for a number of reasons.  Among the reasons for inspection inspection data quality errors are all of the follow following, ing, except: a) b) c) d)

Outdated drawings and documentation Measurement equipment accuracy High corrosion rates @ Clerical and data transcription errors;