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Risk Based Inspection Question Bank

1. Probability of failure analysis is made froma) loss of containment that occurs due to deterioration mechanismb) Consequences of the failurec) Done just with previous experience.d) All the above.

2. Probability of failure is normally expresseda) Just as detailsb) Mentioned in frequencyc) Cannot be measured

3. Qualitative analysis is done and the out come will bea) Exact numberb) High, medium and low or rangec) Only in report.

4. In RBI most of the probability assessment will bea) Only quality assessmentb) Only quantity assessmentc) Blend of quality and quantity assessment.

5. Qualitative assessment is done on the basis ofa) Knowledge of operating History,b) Inspection plansc) Possible material deteriorations.d) All the above.

6. In general the probability of failure is determined bya) Deterioration mechanismb) Effectiveness of inspection progamc) Consequence detailedd) A & B

7. Deterioration susceptibility and rate can be donea) By grouping the same material of construction/similar

process/environment.b) Not possible to group under any circumstances.c) By random inspection method.

8. Deterioration for specific process equipment is not available, this can be sourcedfrom

a) Published datab) Experience with other similar equipment.c) Previous inspection data.d) All the above.

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Risk Based Inspection Question Bank

9. If the material of construction and internal/external conditions are the samea) Inspection results can be related from one equipment can be related to the

other equipment.

b) We cannot do that, since we donot know about it.c) Need to consult Equipment Engineer for final decision.

10.Failure mode can primarily affects thea) Magnitudeb) Consequencesc) A & B

11.No deterioration found in the inspection program but still failure can occur underthe following conditions.

a) During plant construction period.b) As a result of change or process upset condition.c) All the above.

12.Aqueous chloride solution is carried into a sensitized stainless steel vessel, thefollowing cracking mechanism takes very rapidly depending on temperature.

a) Sulphide stress corrosion crackingb) Leak can occurc) Chloride stress corrosion cracking.

13.If operating condition have changed, deterioration rates based on inspection datafrom the previous operating conditions

a) Valid till the equipment exists with any changeb) May not be valid.c) Can be valid with some correction by engineers.

14.Effective inspection program can be derived for RBI froma) Proper NDE method best suited for deterioration mechanismb) Inspection coveragec) Inspection frequencyd) All the above

15.In RBI program discrimination between equipment items on the basis ofsignificance of potential failures.

a) Failure analysisb) Determining failure modesc) Consequence analysisd) A & B

16.Consequence side of the risk equation is normally managed bya) Inspection aloneb) Process safety personnelc) Management.d) B & C

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Risk Based Inspection Question Bank

17.Consequence analysis will aid in preparation ofa) Risk ranking of equipmentb) To understand the probability of failuresc) To understand about equipment history

18.Method used for consequence analysis should demonstrate the ability to providea) Just an analysis

b) No out put is requiredc) The required level of discrimination between higher and lower

consequence equipment items.

19.Loss of containment isa) Loss of fluid to the external environment.b) Container loss at the port authority.c) Risk related to containers.d) B & C

20.Which of the following measures are not covered under consequence analysis?a) Safetyb) Costc) Affected aread) Environment damagee) None of the above.

21.Affected area in the consequence analysis isa) The amount of surface area that experience an effect greater than pre

limiting value.b) The amount of surface area that experience an effect lesser than pre

limiting value

c) Area near the failure area.d) None of the above.

22. RBI program typically focuses ona) acute toxic risks that create immediate danger rather than chronic risks

from low level exposure.

b) Only deals the chronic risks.c) Low level risks and less toxic consequences.

23.RBI program will not consider the following release of common liquids such asa) Hotwater, Steamb) Acidsc) Caustics.d) None of the above.

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Risk Based Inspection Question Bank

24.The main Production consequences for RBI area) Financial.b) Failures.c) Equipment deterioration

25.Maintenance impact in RBI program will be generally be measured in monitoryterms and typically includes

a) Repairb) Equipment replacement.c) A & B

26.Risk is calculated as product ofa) Probability X consequencesb) Consequence X rate of deteriorationc) Life of equipment X consequences

27.Users across the world will refer for more information on Risk acceptance.a) ASME sec VIII

b) API 579, fitness for purpose.c) A comparison of criteria for acceptance of Risk by Pressure vessel

research council.

d) None of the above.28.Inspection and maintenance planning using risk assessment will follow

a) Items/ equipment require inspectionb) Inspection Techniquec) Extent of inspection.d) All the above.

29.Sensitive analysis will help in improving the risk anlysis.a) Quality and accuracyb) Benefit cannot be achieved.c) Will drastically adverse the quality and accuracy.

30.General way of communicating the risk analysis isa) Risk analysis comprehensive reportb) Using a risk matrixc) This is confidential and to be used by only team.

31.Different weighting is given to consequence category than probabilitya) Will symmetrical matrixb) Will be asymmetrical matrixc) Having no relation with the individual weighting.

32.Risks that are judged acceptable during RBI analysisa) No mitigation may be required and no further action necessary.b) Inspection monitoring is required.c) Reevaluation is to be done about the facts by a team.

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Risk Based Inspection Question Bank

33.Following are the ways of risk mitigation during RBI Managementa) By Inspection/condition monitoring.b) Consequence mitigationc) Probability of mitigationd) All the above.