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1) The pr imary work products of th e rbi assessment and management approac hand impleme ntation of rbi providesA. Overall reduction of risk and acceptance of current riskB. Overa ll increase of risk and acceptance of riskC. Overall reduct ion of risk and negligence of current riskD. Over all increase of risk and negligence of current risk

2) Rbi is based onA. Sound, proven risk assessment and management pr incipl esB. Risk miti gation principlesC. Hazop princip lesD. Pha pr inciples

3) Utiliza tion of rbi provides a vehic le for .A. Continuously improving the inspection of facilities and systematically

reduc ing the risk associated with pressure bounda ry tenures.

4) Rbi as an integrated management tool that complements .

A. Pha and rcrn

5) Produces inspection and maintenance plans for equipment that shouldbe impleme nted to provide and .

A. Rbi, re liable and safe operation

b ) Rp 580 significantly ta rgeted at th e applicatio n of rb t in th e and.............industry

A. Hydrocar bon and chemical process

7) Rp 580 is intended to promote co nsistency and quali ty in identifica tion.assessment and management of risks pertaining to which could leadto .A. Mater ial deterioration, loss of containment

8) The risk assessment programme which focuses on process unit design andoperating pract ices and thei r adequacy given the unit's current or antic ipatedoperat ing conditions

A. RbiB. Ph.C. HazopD. Re m

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9) The program that is focused on understand ing failure mod es, add ressing themodes and therefore improving t he retiatnttt y of equi pment and processtact ttt tes.

A. RbiB. PhaC. RemD. Hazop

10)The programme that focused on maintaining the mec hanical integrity ofpressure equipment items and minimizing t he ris k of loss of containment due todete rioration.

A. RbiB. PhaC. RemD. Hazop

11) Is not a subst itute for a proc ess hazards analysis (pha) or hazop

A. RbiB. PhaC. RemD. Hazop

12) The following t ypes of pressurized equipment and associated componentscovered by rb iA. Rot ating eq uipmentB. TurbinesC. Pressurized pumps

13) The primary audience for rp 580 15

A. Inspection and materials engineering personnelB. Main tenance personnelC. Only inspect ion personnelD. Only materials enginee ring personnel

14) Rbi requires the com mitment and cooperat ion of the

A. Tot al organizat ionB. Inspec t ionC. MaintenanceD. Materials engineering

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15) Out come of an eve nt

A. ConsequenceB. RiskC. Event

16) Consequence is always For safety aspects

A. NegativeB. Posit iveC. Neut ral

17) The reduction in the abil it y of a component to provide i ts intended purpose ofconta inment of Fluids .

A. Dete riorationB. DamageC. Degrada tionD. Thinning

18) Occur rence of a partic ular set of ci rcum- stances. Is called an

A. EventB. ConsequenceC. Ri sk

19)The event may be

A. Singular or multi pleB. Certain or uncertainC. Loss or gainD. Negative or positive

20) An analytica l tool that orga nizes an d characterizes potential accide nt s in alogical a nd graphica l manner

A. Event t re eB. EventC. OutcomeD. Consequence

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21) Termi nation of the ability of a system , st ructure , or component to perform it srequired (unction of containment of fl uid (te loss of containment) .

A. FailureB. RiskC. Outcome

22) Small hote, crack or rupt ure are exampl es of

A. Failure modesB. FailureC. loss

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1. ) A physical condition or a release of a hazardous material that couldresult from component failure and result in human injury or death , lossor/ damage, or environ- mental degradation.

v A. HazardB. LossC. Failure

2.) Limitation of any negative consequence or reduction in probability of aparticular event.A. Mi tigationB. Reduct ionC. Residual

3.) Methods that use engineeri ng judgment and experience as the bases forthe anaLysis of probabilities and consequences of failure.A. QuaLitative risk assessment ·B. Relative riskC. Nominal risk

4.) An analysis that identifies and delineates the combinations of eventsestimates the frequency of occurrence for each combination andest imates the consequences.

' A. Quantitative risk analysisB. Qualitative risk analysisC. Process hazard analysis

5.) . uses logic models depicting combinations of event svICQuantitative risk analysis

...\8 . "Qualitative risk analysisC. Process hazard analysis

6. ) Quantitat ive risk analysis logic models generally consist of _and:- ----:-,-A. Event tees and fault t reesB. Product trees and loss trees

-, r: C. Likelihood trees and consequence trees•\ "

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--..... . - .....7.) de lineate initiating events and combinations of system

successes and failuresA. Event treesB. Fault treesC. Logic t rees

8. ) Depict ways in which the system failures rep' resentedin the event trees can occur.A. Event t rees

', B. Fault t reesC. Logic trees

9.) The comparative risk of a facility, process unit, system, equipmentitem or component to other facilitiesA. Relative riskB. Absolute riskC. No risk

10 . ) Combination of the probability of an eve nt and its consequence.,_A; Risk

B. FailureC. LossD. Reduction

11. ) Systematic use of information to identify sources and to estimate therisk.A. Risk

, B. Risk a nalysis\ C. Hazard analysis

12) Provides a basis for risk evaluation, risk mitigation and risk acceptance.A. Risk

.'--' ~:" Risk analysis,/ c. Hazard analysis

13) Process used to assign values to the probability and consequence of arisk.

,/ A~ Risk evaluation'- B. Risk estimation

C. Risk identi fica tion

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14.) Process used to compare t he estimated risk against given risk criteriato determine the significance of the risk.

./ A Risk evaluationB. Risk estimationC. Risk identifica tion

15.) Process to find, list, and characterize elements of risk.A. Risk esti mationB. Risk eval uation

" C. Risk identification

16.) Coordinated activi ties to direct and control an organization with regardto risk.A. Risk managementB. Risk evaluationC. Risk control

/

17. ) Thing or activity with a potential for con- sequence .. A. Source

/ \ B, Hazard':c. Toxic

1,~ in a safety context is a hazard.A. Source

r. . \ .\',..\r \6.1 Toxic;

19. } The risk prior to mitigation activities"A. Unmit igated risk

B. Known riskC. Mit igated risk

20) is the combination of the probability of some eventoccurring during a time period of interest and the consequences,associa ted with the eve nt.

\-;A RiskB. LossC. Mitigated risk

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21. ) Act of mitigating a known risk to a lower level of risk.A. Risk reduction

'/ B. Risk mitigationI C. Risk evaluation

22.) A process to assess risks, to determine if risk reduction is required andto develop a plan to mainta in risks at an accepta ble level.A. Risk management

" I B. Risk mitigationC. Risk control

23.) When some risk ide ntified as acceptable then one of the following isnot required.

v A. Risk reduction, B. Risk evaluation

'" C. Risk mitiga tionD. Risk control

24. ) In process plants are established to detect and evaluate deteriora tiondue-to in service operation.A. Inspect ion and testing programs

. . B. Condition monito ring programsC. Preventive maintenance programsD. Inservice inspection programs

25.) When equipment has low de te rioration rates as an inspector what youdecide in lieu of internal inspection.

. A. On-stream inspection~

B. Out of service inspectionC. Exte rnal inspection

. I

26 .) represents the next generation of inspection approachesand interval setting, recogniz ing that the ultimate goal of inspection isthe safety and reliability of ope rating facilitie s.

, A: RbiB. PhaC. HazopB. Rcm

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27.) For a typical inspection program, if excessive inspection is appliedthen.

• 'A . Level of risk may go upB. Level of risk may go down vC. Level of risk remain the same

28. ) provides a consistent methodology for assessing theoptimum combination of methods and frequencies.A. RbivB. RemC. PhaD. Hazop

29. ) Through J inspection activit ies are focused onhigher risk ite ms and away from lower risk items.A. RbiB. PhaC. RemD. Hazop

30. ) Following are not the residual risk factors for loss of containment.A. Human errorB. Natural disasters

-, C. Fundamental limitations of inspection methodD. Toxic fluid containment .

31.) Rbi is focused on a systemat ic determinat ion ofA. Relative risksB. Absolute risksC. Comparable risksD. Total risks

32.) Act of mitigat ing a known r isk to a lower level of ri sk.'-....-A. Risk reduction

B. Risk managementC. Risk mitigation

33.) Some failures have potentially serious consequences. but if theprobability of the incident is low, thenA. The risk may not warrant immediate action '.B. The risk may warrant immediate actio nC. The risk may warrant appropriate mit igation action

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34.) If the probability and conseque nce combination (risk) is high e nough tobe unacceptable , thenA. A mitigation act ion to predict or prevent the event is

recommended.B. A mit igation action to predict or prevent the event is not

recommendedC. Warrant to analyze risks involved

35.) refers to a prescriptive methodology that has resultedfrom the application of risk analysis techniques at many different typesof faciliti e s.A. Quantitative risk assessment (qra)B. Qualitative risk assessmentC. Semi quantitative risk assessment

36.)A Rbi anal ysis shares many of the techn iques and data requirementswitha _A. Qra ../B. PhaC. HazopD. Event tree

37.) lf a qra has been prepared for a process unit , the analysis can borrowextensively from thi s effort.A. Rbi consequenceB. Rbi likelihoodC. Rbi probability

38.) Hazard identificati on in a rbi analysis gene rally focuses on identifiablefailure mechanisms in the equipment (inspecta ble cau ses) but does notexplicitly deal wit hA. Other potential failure scenarios result ing from events such as power

, ~ ./ failures or human errorsB. Other potential failure result ing from events such as flammable fire

due to leak from equ ipme ntC. Environmental impact caused due to toxic release

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39.) deals wit h total risk than with risk involve only wit h theequipment.A. Qra 'B. RbiC. PhaD. Fta

40. ) Risk presented in quantit ati ve risk analysis as aA. Precise numeric valueB. Form of risk mat rixC. Form of event t ree and fault tree

41. ) Risk presented in qualitative risk analysis asD. Precise numeric value

\ f: . Form of risk matrix"- ' F. Form of event tree and fault tree

42.) Results fro m quantitative analysis logic models are validated by" A. Expert judgme nt., B. Inspection engineer

C. Main tenance engineerD. Operations personnel

43. ) The sutt abtlity and curre nt condit ion of the equipme nt wit hin thecu rre nt operating e nvelope will determine the _:- of t heequipment from one or more deterioration mechanisms.A. Probability of failure (pot)B. Consequence of failureC. Total riskD. Relative risk

44.) The probability of fai lure , when coupled with the associatedconsequence of failure (cof) (see section 11 ) will deter mine

-< associated with the equipment item,vA.Operating risk

B. RankingC. Residual risk

45.) Is a risk management activity that may lead to risk reduction?, _A: Inspection

B. EvaluationC. Analysis

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46.) The primary product of a rbi effort should beA. An inspection plan for each equipment item evaluatedB. Mitigation plan for each equipment item evaluatedC. Residual risk assessment plan for each equipment item evaluated

47.) Following are some of the recognized risks which cannot be managedby inspection alone except oneA. Equipment nearing retirementB. Failure mechanisms (such as brittle fracture, fatigue) where

avoidance of failure primarily depends on operating within adefined pressure/temperature envelope

C. Consequence-dominated risksD. The suttabihty and current condition of the equipment within the

current operating envelope will determine the probability of failure(pof) of the equipment from one or more deterioration mechanisms

48.) Following are the non-inspection mitigation actions except oneA. Replacement or upgradeB. Equipment redesignC. Maintenance of strict controls on operating conditions

,P :' Risk management by monitoring the deterioration

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49.) In the event of a leak the potential failure of an isolation valve could\ A. increase the inventory

B. Decrease the inventoryC. No harm to inventory

50.) Potential hazards identified in a pha will often affect the'..P.. Probability of failure side of the risk equation .

B. Consequence of failure side of the equation

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~~- -1. Probability of failure analysis is made from

a) toss of containment that occu rs due to deterioration mec hanismb ) Consequences of the failurec} Done j ust wi th previous experienced) All the above \

2. Probability of failure is normally expresseda} Jus t as deta ilsb) Mentioned in f requencyc) (annat 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 probabilit y assessment will bea) Only quality assessmentb) Only quantity assessmentc} Blend of quality and quanti ty assessment

5. Qualit ati ve assessment is do ne on t he basis ofa) Know ledge of operat i ng Historyb) Inspect ion plansc ) Possible material deteriora tionsd I All the above

6. In general the probability of failure is determin ed bya) Deterio rat ion mechanismb) Effec t iveness of inspect ion programc) Consequence detailedd ) A & B

7. Deteri oration suscept ib ility and rate can be donea) By grouping th e same material of construction/ similar

process/ environment '/b) Not possib le to group under any circumstancesc) By random inspect ion method

8. Deteriorat ion for speci fic process equipment is not available , this can besourced f rom

a) Published datab ) Exper ience with other similar equi pmen tc) Previous inspection datad) All the above .

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9. If the material of construction and internal/external conditions are thesame

a) Inspect ion results can be re lated f rom one equipment can be relatedto the other equipment I

b) We cannot do that , since we do not know about itc) 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 inspec t ion program but st ill failure can occurunder the following condi tions.

a) During plant construction periodb) As a result of change or process upset condition /.--c) All t he above

12. Aqueous ch loride solution is ca rried into a sensitized sta inless stee l vesse l,t he followin g cracking mechan ism takes very rapidly depending ontemperature.

a) Sulphide stress corrosion cracki ngb) Leak can occurc) Chloride st ress co rrosio n cracking

13. If operat ing condi t io n have changed, deterioration rates based on inspectiondata from the previ ous operating conditions

a) Vali d t ill th e equipment exists with any change

b) May not be valid '.----c) Can be valid w ith some correction by engineers

14. Effective in spect ion program can be derived for RBI f roma) Proper NDE method best suited for deterioration mec hanismb) Inspection coveragec) Inspection f requencyd) All the above '

15.ln RBI program di scrimination between equipment items on the basis ofsignificance of potential fai lures.

a) Failure analysisb) Determining failure modesc ) Consequence analys isd) A&. B '

I

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16. Consequence side of the risk equation is normally managed bya) Inspection aloneb) Process safety personnelc) Managementd) B a c

17. Consequen ce analysis will aid in preparation ofa) Risk ranking of equ ipmentb) To understand the probability of failuresc } To understand about equi pment history

18. Method used (or consequence analysis should demonstrate the ability toprovide

a) Just an analysisb) No out put is requiredc) The required level of discrimination between highe r and lower

consequence equipment i t ems.

19. Loss of containment isa) loss of fluid to the external environme ntb) Container loss at the port aut horityc) Risk relat ed to containersd ) B & C

20 . Which of the following measures are not cove red under consequenceanalysis?

aj Sa fetyb] Costc ) Af fected aread} Environment damagee) None of the above

21. Affected area in the conseq uence analysis isa} The amount of surface area that experience an ef fect grea ter t ha n

pre limiting valueb) The amount of surface area that experience an ef fect lesser t han

pre limiting valuec} Area near the failu re aread ) None of the above

22. RBI program t ypically focuses ona} Acute toxic ri sks that create immedi ate danger rather than chronic

risks f rom low level exposureb) Only dea ls t he chronic risksc) l ow level risks and less toxic consequences

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.-----23. RBI program will not consider the following re lease of common liquids s uch

asa ) Hot water , Steamb ) Acidsc) Causticsd ) None of the above /

24. The main Produ ction consequences for RBI area ) Financialb) Failuresc ) Equipment deterioration

25. Main tenance impact in RBI program will be gener ally be measur ed inmo nitory terms and typically inclu des

a) Rep airb ) Equipment rep lacementc ) A a B '

26. Risk is ca lcula ted as produ ct ofa) Probability X consequencesb) Consequence X rate of deterio rationc) Life of equipment X consequences

27. Users across the world wilt refer for more information on Risk acce ptance.a) ASME sec VIIIb ) API 579, fitness for purposec ) A compa rison of criteria for acceptan ce of Ri sk by Pressure vessel

researc h council ~d ) None of th e above

28 . Inspection a nd maintenance pla nning using risk assessment will fo llowa) Ite ms! equipment re qui re inspectionb) Inspecti on Techniquec) Exte nt of inspectiond) All th e above ~

29 . Se nsit ive a na lysis will he lp in improving the risk an alysis .a) Quality a nd accu ra cy ~b ) Be nefit cannot be ach ievedc) Will d ras tically adverse the quality and accuracy

OAF 690 I Rev 00 I Jul y 20 . 2008 I Page 5 of 6

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30 . Ge ne ra l way of co mmunicating the risk analysis isa) Risk analysis comprehensive reportb) Using a risk matrixc) This is confidential and to be used by only team

31 . Differen t weighting is given to con sequence category than probabilitya) Will symmetrical ma trixb ) Will be asymmetrical matrtx "->c ) Having no re lat ion with the ind ividual weighting

32. Risks that are judged acceptable during RBI analysisa) No mitigation may be requ ired and no further action necessaryb} Inspect ion monitoring is requi redc ) Reevaluation is t o be done about the facts by a team

33. Following are th e ways of risk mitigation du ring RB I Managemen ta ) By Inspection / co ndition mon itoring.b ) Consequen ce mitigat tonc ) Proba bility of mit iga t iond) All the ab ove

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1. ) Rbi may include methodologies to assess the effect ive ness of themanagement systems in maintainingA. Mechanical integrity / -B. Total asse t integrityC. Plant integrity

2. ) Equipment reliability is especially important if leaks can be caused byA. Secondary fa ilures, such as toss of utilitiesB. Primary failures such as leak due to severe corrosion c-:C. Te rt ia ry failures due to valve gland packi ng leak

3. ) Reliability effor ts , such as reliability centered maintenance (rcm), canbe linke d with rbi, result ing in an integrated program toA. Reduce downtime in an operating unitB. Reduce operating time of a unitC. To reduce risk by mitigation ac tivities

4.) In jurisdictions that permit the application of the API Inspection Codesand st andardsA. Rbi shou ld be an acceptable method for se t ti ng inspection plans .B. Rcm should be an acceptable method for setting the inspec t ion

plansC. Pha

5_) to be established to judge acceptability of risk couldhe an objective of the rb i assessment if such criteria do not e xistalready wit hin th e user 's com pany.A. Risk cr iteriaB. Risk pla nC. Risk analysis

b. )

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is usually not the primary ob jectiveassessment , but it is freque ntly a side effect of optimization .A. Reducing inspec tion cos ts '.--B. Increas ing inspection costsC. Increasing frequ ency of inspection program s

QAF 690 1Rev 00 1July 20, 20081 Page 2 of 10

of a rbi

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7.) When the inspection program is optimized based on an understandingof risk, one or more of the following cost reduction benefits may berealized. Except oneA. Ineffective, unnecessary or inappropriate inspection activities may

be el iminatedB. Effective , necessary or appropriate inspection activities may be

eliminatedC. On-line or non-invasive inspection methods may be substituted for

invasive methods that require equipment shutdownD. More effective infrequent inspections may be substituted for less

effective frequ ent inspections

8. ) The following are the risks identified by rbi assessment that may bemanaged by act ions other than inspection. Except oneA. Modification of the process to eliminate conditions driving the riskB. Modification of operating procedures to avoid situations driving the

riskC. Chemical treatment of the process to reduce deterioration

ratesl susceptibilitiesD. Identifying and detecting deterioration and predicting future

deterioration states with advanced inspect ion technique(s)

9.) For qualitative rbi analysis it us important to establish a set of ruLes toassure consistency in

'A. Categorization or classificationB. Segregation

' c. Ranking

10. ) Generally, a qual itative ana lysis using broad ranges requires ac-o-:-:c-,--,---,---",-,- from the user t han a quantitative approac h.

_A: Higher level of judgment, skill and understandingB. Lower level of judgment, skill and understanding

11. ) The models are evaluated to provide bot h qualitativeand quantitative insights about the level of risk and to identify thedesign. site. or operational characte ristics that are the most importantto riskA. Probabil ist icallyB. Stat ist icallyC. LinearlyD. Logically

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13. ) Potential source of e rrors in rbi analysis regarding data quality are t hefollowing exceptA. Assumpt ions in equ ipment historyB. Outdated drawings and documentationC. Inspector errorD. Advanced inspection methods

14. ) The following assumption can be made t hat significan tly impact t hecalculated corrosion rate ear ly in the equipment li feA. If the base line th ickness were not performed t he nominal thickness

may be used for the original thicknessB. If original th ickness not available, ave raged ut thickness readings

may be usedC. if the original thickne ss not available , maximum ut thickness

readings may be used

15.) may result in the calculate d corrosion rate appearingartificially high or low.A. Clerical error

j \....-B. Measurement errorC. Inspector e rrorD. Ut scanning

16.) The data validatio n step str esses the need for a knowledgeableindividual.A. To comparing data from the inspections to the expected

deterioration mechanism and ratesB. To compare the results with previous measurements on that syst emC. Similar systems at the site or with in t he compa ny or published da taD. All of the above

17.) The amount and type of codes and standards used by a facil ity can haveA. Significant impac t on rbi re sultsB. No impact on rbi resultsC. Less significant impact on rbi results

18.) Who should be consulted to defi ne t he equipment deteriorationmechanisms, susceptibility and poten t ial fa ilure modes?

'- A. A metallurgist or cor rosion specialistB. A metallurgist and corrosion specialistC. A metallurgist onlyD. Corrosion specialist only

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19.) are the primary inputs into the probability of failureevaluation.A. The deterioration mec hanisms, rates and suscepttbihttesB. Loss of containment f flu idC. Fluid toxicity and its concent rat ionD. Damage mechanisms and its severity

20.) -,-----:-:----:_ is key to performing deterioration mechanism identif ication.A. Understanding equipment operation and the interaction wit h t he

chemical and mechanical environment 'B. Understanding equipment ope ration and process upsetsC. Understanding equipment operat ion and its safety protective

measures

21.) Who can provide useful input (such as the spectrum of processconditions, injection point s etc.) , To aid materials specialists in theiden tification of deteriora tion mec hanisms and rates.A. Process speci aListsB. Plant operation specialistsC. Asset integrity expertsD. Inspection engineers

22.) Thinning ca uses the loss of material fromA. External surfaces onlyB. Internal surfaces onlyC. External or internal surfacesV

23.) Sec occu rs when equipment is exposed to envi ronmentsA. Conduci ve to cert ain cracking mechanisms ~

B. Unfavourable to certain cracking mechanismsC. Unbeneficial to cert ain c rack ing mechanisms

24.) are oft en necessary to establishequipment to stress corrosion cracking.A. Lit erature. expert opinion and experience ,B. Cracking mechan ismsC. Damage mechani smsD. Fluid t oxicity and its cons tituents

QAF 690 I Rev 00 I July 20. 20081 Page 5 0110

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25.) curves are referred for the dete rioration mechanismfor ca rbon and low ally steel materials.A. Nelson curvesB. Ph concentration curvesC. Schmidt curves for sulfide corrosion

26. ) Following are the crit ical variables for deterioration mechanism exceptA. Material of construct ionB. Process operatingC. Start up and shut down conditionsD. insuLation

27.) Following are the common mechanical deteriorat ion mechani smsexceptA. FatigueB. Stress/ creep ruptureC. Tensile overloadD. Intergranutar corrosion

28.) Depending on the met hodology employed in qualitative analysis, thecategories may be described with words such asA. High, medium or low or may have numerical descriptors.B. High, medium or low onlyC. Numerical descriptors only

29.) When in accurate or insuff icient failure data exists on the specificeq uipment item for quanta tive probability of failure analysis then »>:A. General industry, company or manufacturer failure data used I VB. Process hazard analysis failure data may be usedC. Proc ess and toxic con centrat ion analysis may be use d

30. ) Deteriorati on rates can be expressed in terms ofA. Corrosion rates for thinning or susceptability for mechanisms w here

deteriora tion rate is unknownB. Corrosion rates for thinning onlyC. immeasurable quantityo. Discrete numbersE. Susceptible rat es only

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31.) Damage mechanisms where deterioration rates are immeasurable orunknown areA. Stress corrosion crackingB. Hydrogen inducen crackingC. ThinningD. All of the aboveE. Both a and b

32.) The ability to state the rate of deterioration precisely is affected bythe following exceptA. By equipm ent complexityB. Type of deterioration mechanism, process and metallurgical

variationsC. Inaccessibility.... for inspection, limitations of inspection and test

methods ' .D. Lack of coverage of an area subject to deteriorationE. None of the above

33.) The type of failure mode that likely to occur due to pittingA. Small hole sized leaks 'B. Small holes to rupturesC. CracksD. Catastrophic rupture

34.) The type of failure mode that likely to occur due to sseA. Small holes to ruptureB. Small holesC. Cracksx-D. Only rupture

35.) The type of failure mode that likely to occur due to mechanical andmetallurgical deteriorationA. Small holes to rupturesB. CracksC. Catastrophic rupturesD. Leaks

36. ) The type of failure mode that likely to occur due thinningA. Larger leaks or rupture ·B. Only ruptureC. Metal lossD. Cracks

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37.) If a very aggressive acid is carried over from a corrosion resistant partof a system into a downstream vesse l that is made of carbon steel, theresult would beA. Rapid corrosion could result in fa ilure in a few hours or days.B. General corrosion over a period of time could result in metal lossC. No deteriora tion will take place since ca rbon steel is resistent to

aggressive acid

38.) If multipl e inspec tions have been performed, which inspection maybest reflect current operating conditions?A. Most recent inspection ~./

B. Base line inspection surveyC. Process conditionsD. Corrosion survey

39.) Probability side of the risk equation is normally managed byA. Plant inspectors or inspection engineers ·B. Maintenance planning engineersC. Process safety personnelD. Both a and b

40. ) Other functiona l failu res are usually covered wit hinA. RbiB. RemC. PhaD. Hazop

41. ) Following will cover the functional failures exceptA. Heat exchanger tube fa ilureB. Pressure reli ef device failureC. Rotating equipment failure ..........D. Stat ic equipment failure due to process environment

42. ) Qualitative consequence analysis of failure can be estimated separa telyfor each unit , system, equipment group or individual equipment item.

. A. On the basis of expert knowledge and experience ./B. On the basis of available data '.C. On the basis of process and environmenta l conditionsD. No basis required since it is qualitative

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- --"43. ) Results of quantitative consequence analysis are usually expressed in

A. Numeric ,B. Ranges from high to lowC. FrequencyD. Occasion

44. ) In most consequence evaluations, a key e lemen t in deter-mining themagnitude of the consequence isA. The volume of fluid released .B. Amount of surface area exposed due to toxic releaseC. Physical area impacted by release

45. ) Following is the unit of measure of conseque nce that is least developedamong those currently used for rbi assessmentA. Affected areaB. CostC. Envi ronment al damageD. Safety

46 . ) Most of the damage from thermal effect s tends to occur inA. Close range~ .B. Wide range 1/"C. Large distance

~ D. None of the above

47. ) Toxic releases in rbi are only addressed when they affectA. Person ne l :.---B. Equi pmentC. Process

48.) The rbi program for environmenta l consequences, typically foc use sA. On acute and immediat e envi ronmentaL risks, rather than chronic

risks from tow-leve l emissions vB. On acute and immediate chronic risks t han immediate

envi ronmenta l ri sksC. Non threat envi ronment al ri sks

49. ) The consequences of envi ronme nta l damage are best understood byA. CostB. ReleaseC. Vol ume of fluidD. Toxic concent rat ion vy"

1-- -- ._ .

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50.) Maintenance impact will generally be measured in monetary term andtypicall y includes:A. Repairs and equipment replacementB. Method of cleanupC. Safet y systems

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