ARAMCO阿美认证检验员考试题及答案.docx

ARAMCO阿美认证检验员考试题及答案.docx

《ARAMCO阿美认证检验员考试题及答案.docx》由会员分享，可在线阅读，更多相关《ARAMCO阿美认证检验员考试题及答案.docx（116页珍藏版）》请在冰豆网上搜索。

ARAMCO阿美认证检验员考试题及答案

QuestionnaireandAnswerSheet:

MECHANICALGENERAL1

机械综合1

1.WhatisthepurposeofapenetrameterorIQI?

Indicatesradiographicsensitivityandqualityofthetechniques.

2.Whatismeantbythetermsensitivitywithregardtoradiography?

Theabilityofaradiographictechniquetorevealdefectsofaspecificsize.

3.Whatarethelimitationsofmagneticparticleinspectionandliquidpenetrantinspection?

M.P.canbeusedonlyonferromagneticmaterialstodetectsurfacesubsurfacediscontinuities.

L.P.canbeusedtodetectdefectsopentothesurface.

BothM.P.andL.P.requiresurfacepreparationsbeforetesting.

4.WhatinformationiscontainedinaWeldingProcedureSpecification?

Processtype,groove（joint）design,materialtype,materialthickness,positionofgroove,fillermetaltype,pre-heatrequirements,interpasstemperature,postweldheattreatmentrequirements,shieldinggasorfluxtype,electricalcharacteristics,techniquesofwelding.

5.Whyispostweldheattreatmentrequiredforsometypeweldments?

Relievestresses,lowerhardness

6.WhatisthebasicdifferencebetweenaDINandanASMEpenetrameter?

DINpenetrameterisawiretypepenetrameter,

ASMEpenetrameterisaholetypepenetrameter.

7.Whattypeofdefectswouldyouexpecttofindduringvisualinspectionofacompletedweld?

Undercutting,excessiveorinsufficientweldreinforcement,excessiveirregularities,incompletepenetrationonasinglebutt-weld,weldspatter,etc..

8.Whatprecautionmustbetakenwithlowhydrogenweldingelectrodes?

Storeinovenwhennotinuse,keptinheatedcontainerbywelderawaitinguse.

9.Whatinformationnormallyappearsonradiography?

Penetrameteridentification,Locationofmarkerstoensurecompletecoverage,thenameoftheinspectinglaboratory,thedate,thepartnumber,whetheroriginalorsubsequentexposure.

10.Whatistheruleofthumbusedtodeterminetheamperageforthedry,prodmethodofmagneticparticleinspection?

100–125amps/inch.

11.Whatmaterialsarethetransducermadefrom?

Quartz,BariumTitanate,LithiumSulphateandCeramics.

12.Whatisafilmdefect?

Amarkonthefilmusuallycausedbyimproperhandlingorprocessing.

13.Ifyouwereinspectinganitemusingtheprodmethodandlocatedaweakcrackpattern,wherewouldyouplacetheprodstoobtainastrongerlocation?

Relocateprods90degreestothecrackpatternandre-inspect.

14.Whattypicaldefectswouldyouexpectwhileinspectingacasting?

Sandandslaginclusions,gasporosity,shrinkage,hottears.

15.Describethepulseechotechnique.

Whenanelectriccurrentisappliedtothecrystal,thecrystalvibratestransformingtheelectricenergyintomechanicalvibrationswhicharetransmittedthroughacouplingmediumintothetestmaterial.Thesepulsevibrationspropogatethroughtheobjectandarereflectedasechoesfrombothdiscontinuitiesandthebacksurfaceofthetestpieceandwillappearasaverticaldeflectiononthecathoderaytubeoroscilloscope.

16.Whichmethodi.e.magneticparticleexaminationorliquidpenetrantexamination,locatenon-metallicinclusionsopentothesurface.

Both.

17.Whatisa“WeldProcedureQualificationRecord?

Adocumentwhichcontains,essentiallythesameinformationasaWPSbutincludestheresultsofthetestsnecessarytoqualifytheWPS.Alsolistedarethe“essentialvariable”ofthespecificprocessofprocesses.

18.Whatismeantbytheterm“FilmDensity”?

Measurementorfilmblackening.测量或胶片的发黑度。

Densitometerisusedtomeasurefilmdarkening.显像密度计是用于测量胶片的暗色变化。

19.Whatfactorsdeterminetheechoheightofaflawinultrasonicinspection?

Sizeoftheflow,positionororientationandinstrumentcharacteristics.

20.Whatsurfacepreparationisrequiredonamaterialbeforemagneticparticleorliquidpenetrantinspection?

Thematerialsurfaceshouldbeclean,dryandfreefromoil,grease,weldspatteroranythingthatwillobscureorinterferewithdefectdetection.

QuestionnaireandAnswerSheet:

Mechanicalgeneral2

机械综合2

1.Whatisamil?

“Mil”是什么？

1/1000partofaninch.

2.Differencebetweenstressrelievingnormalising.

3.Name2testscarriedouttodeterminetoughness.

D.W.T.T.,CHARPY

4.Whatismax.hardnessvalveasperNACEMRD175?

c）Steel235Hvmax.钢最大：

235Hv

5.Howwouldyoumeasuregramophonelinesonaraisedfaceofaflange?

/////

6.Name3typesofflanges.

Weldneck,RaisedFace,GroovedFace

7.Whatprecautionsmustbetakenwhenweldingcladdedpipe?

Checkangle,Prepetc.whenweldingensuresslagisremovedandfreedofbeadsetc.

8.Whatinfoisrequiredonastandardmillcert?

CastAnalysis,ChemicalAnalysis,P.O.Number,Client,Mech.TestResultsetc.

9.WhyisradiographypreferredoverotherN.D.T.methods?

PermanentindicationsonSPAM.

QuestionnaireandAnswerSheet（MAGNETICALPARTICLETESTING）

磁粉检验

1.Canheathaveaneffectontheresultsofamagneticparticletest?

YES是的

2.Howdoestheappearanceofasurfacedefectdifferfromthatofasubsurfacedefect?

Surfacedefectshaveamoreclearanddistinctindicationandareeasiertodetect,theycanalsobere-testedbyPTmethod.SubsurfacedefectsaredetectablebyMT-Method（mostreliablemethodis“wetfluorescent”afterA.C.magnetizing）keepinmindtheskineffectwhenusingACcurrent

3.TRUEorFALSE:

Acoilshotproduceswhatisgenerallyconsideredtobealongitudinalmagneticfield.

TRUE（applytherighthandrule）

4.AsperASMESectionV,whatamperageshouldbeusedforthedryprodexamofbasemetal?

Forthicknessbelow¾”>>90-110Amp/25mmforthicknessabove¾”>>100-125Amp（refertoASMESectionV）

5.SurfacedefectsaremoreclearlydefinedbyA.C.orD.C.current.

ByA.C.

6.TRUEorFALSE:

Discontinuitiesparalleltothemagneticfieldproducethestrongestindications

FALSE,bestcaseis90°tothemagneticfieldlines.

7.TRUEorFALSE:

Itispossibletodetectdefectsbymagneticparticleexaminationthatcannotbedetectedbyradiography.

TRUE,forexample,byx-raymethodusinganIridium192source,youwillnotdetectverysmall

Cracks,called“haircracks”.ThosekindsofdefectscanbefoundbyMT-wetfluorescentmethod,onthesurfaceorclosetothesurface.

8.Whatmethodismoresensitiveforthedetectionofsubsurfacedefects,ACorDCcurrent?

A.C.　

9.AccordingtoASMESectionV.whatarethethreemainstepsinamagneticparticleexamination?

Cleaningupthetestsurface,magnetizingofthecomponentandapplicationoftheaccordingtestmedium,i.e.drypowderorfluorescentsuspension,evaluationandrecordtheresults.

10.TRUEorFALSE:

Whenpartsaretobeweldedaftermagneticparticletesting,residualmagnetismmayattractthefillermaterial.Thisaidsinthedispositionofweldmetalimprovingtheweldquality.

TRUE正确

11.TRUEorFALSE:

Alongitudinalmagnetizedpartretainsamoreobjectionableresidualfieldthanacircularmagnetizedpart.

TRUE错误

12.TRUEorFALSE:

Demagnetizationisstillrequiredwhenapartwillbesubsequentlyheattreated.

FALSE

13.TRUEorFALSE:

Thedetectionofsubsurfacedefectsover¼”deepinweldmentsismoreofaproblemthanisthecaseofsurfacedefects.

TRUE正确

14.Whenamagneticfieldisinducedinapartwithprods,spaced6inchesapart,thefieldisconsideredas:

a）solenoidfieldb）distortedcircularfieldc）longitudinalfieldd）yokefield

b）

15.TRUEorFALSE:

Abruptchangesinthickness,highamperagesanddrilledholesnearthetestsurfacearecausesofnorelevantindications.

TRUE正确

QuestionnaireandAnswerSheetRT（RadiographyTESTING）

射线检验

1.Whatisthepurposeofapenetrameter?

Toindicatethequalityofradiologicalimages.

2.Whataretheminimumandmaximumacceptancelevels,perASMESectionV,forfilmdensityusingagamma-raysourceandsinglefilmviewing?

1.5–4.0（-15%+30%）

3.Namefive（05）attributeswhicharenormallyincludedinawrittenradiographicprocedure.

Materialthickness,isotopeorX-raysource,minimumsourcetoobjectdistance,maximumsourcesize,filmtype,penetrameterimagerequirements,radiographictechnique,

4.Nameatleast5typesofwelddefectswouldyouexpecttofindwithRadiography.

Cracks,porosity,slaginclusion,tungsteninclusion,lackofpenetration,lackoffusion,clustergaspores,offset,burnthroughisolatedinclusion,

5.WhatAmericanstandardspecifiesthequalificationrequirementsfortechniciansinvolvedinnondestructivetesting?

ASNT,RPSNT-TC-1A

6.TRUEorFALSE:

ASMESectionVIII,div.1containsradiographicacceptancecriteriaforroundedindication.

True（Appendix4）正确（附录4）

7.Inadoublewalltechniqueforsinglewallviewing,whatistheminimumnumberofexposuresrequiredbyASMEV?

Threeexposurestaken120deg.toeachother

8.Sourcesize,specimenthickness,andsourcetoobjectdistancesarethreefactorsthatdeterminethe______________________________ofaradiograph?

Sensitivity灵敏度

9.WhatdoesASMEVsayaboutqualityofradiographicfilm?

Allradiographsshallbefreefrommechanical,chemical,orotherblemishestotheextentthattheydonotmaskandarenotconfusedwiththeimageofanydiscontinuityintheareaofinterest.

10.Aradiographicfilmhavingwidelatitudealsohas,bydefinition:

a）poordefinitionb）lowcontrastc）highspeedd）noneoftheabove.

b　lowcontrast低的对比度

11.TRUEorFALSE:

Tomakeaproperevaluationwheninterpretingaradiograph,itisnecessarytoknowtheweldingprocessusedtomaketheweld.

True正确

12.Adarklineofvaryingwidthonaradiographwhichfollowstheedgeofthefusionzoneofaweldcapisindicativeof:

a）undercuttingb）incompletefusionc）porosityd）shrinkage

Incompletefusion不完全融合

13.Aradiographthatshowsan