Aviation Mechanic Oral and Practical Exam Guide (2024)

Page 1 of 16

Aviation Mechanic Oral and Practical Exam Guide (2024) - Page 1 preview image

AviationMechanicOral&PracticalExamGuideComprehensivepreparationfortheFAAAviationMechanicGeneral,Airframe,andPowerplantOral&PracticalExamsFifthEditionKeithAnderson;BasedonoriginaltextbyDaleCrane"{iPyAYil|/A.iq|oYa¢.@aA.ws>|1—1RYNeVINE2:(5HNha)rm5):reIRN5{dsA-ETTToe,*aCEENeeonbdidi,asWasPon,|\%aa>5AGENERALAIRFRAMEPOWERPLANT1]

Page 2 of 16

Aviation Mechanic Oral and Practical Exam Guide (2024) - Page 2 preview image

DownloadedfromStudyXY.com®+StudyXYSdYe.o>\|iF’prE\3SStudyAnythingThisContentHasbeenPostedOnStudyXY.comassupplementarylearningmaterial.StudyXYdoesnotendroseanyuniversity,collegeorpublisher.Allmaterialspostedareundertheliabilityofthecontributors.wv8)www.studyxy.com

Page 3 of 16

Aviation Mechanic Oral and Practical Exam Guide (2024) - Page 3 preview image

Page 4 of 16

Aviation Mechanic Oral and Practical Exam Guide (2024) - Page 4 preview image

AviationMechanicOral&PracticalExamGuideFifthEditionbyKeithAndersonBasedonoriginaltextbyDaleCraneAviationSupplies&Academics,Inc.7005132ndPlaceSENewcastle,Washington98059asa@asazfly.com|425-235-1500|asa2fly.comCopyright©2024AviationSupplies&Academics,Inc.Firsteditionpublished1994.Fiftheditionpublished2024.Seeasazfly.com/oegamtforadditionalinformationandupdatesrelatedtothisbook.Allrightsreserved.Nopartofthispublicationmaybereproduced,storedinaretrievalsystem,ortransmittedinanyformorbyanymeanswithoutthepriorwrittenpermissionofthecopyrightholder.Whileeveryprecautionhasbeentakeninthepreparationofthisbook,thepublisher,KeithAnderson,andDaleCraneassumenorespon-sibilityfordamagesresultingfromtheuseoftheinformationcontainedherein.NoneofthematerialinthisbooksupersedesanyoperationaldocumentsorproceduresissuedbytheFederalAviationAdministration,aircraftandavionicsmanufacturers,flightschools,ortheoperatorsofaircraft.ASA-OEG-AMTs-EBISBN978-1-64425-363-2Additionalformatsavailable:Softcoverbook,ISBN978-1-64425-362-5eBookPDF,ISBN978-1-64425-364-9Coverphoto:JuiceFlair/Shutterstock.comLibraryofCongressCataloging-in-PublicationData:Names:Anderson,Keith,1960-author.|Crane,Dale,author.Title:Aviationmechanicoral&practicalexamguide:comprehensivepreparationfortheFAAaviationmechanicgeneral,airframe,andpowerplantoral&practicalexams/KeithAnderson,originaltextbyDaleCrane.Othertitles:Oral&practicalexamguide:comprehensivepreparationfortheFAAaviationmechanicgeneral,air-frame,andpowerplantoral&practicalexamsDescription:Fifthedition.|Newcastle,Washington:AviationSupplies&Academics,Inc.,2024.|“ASA-OEG-AMTs"—Titlepageverso.Identifiers:LCCN2023041443(print)|LCCN2023041444(ebook)|ISBN9781644253625(tradepaperback)|ISBN9781644253632(epub)|ISBN9781644253649(pdf)Subjects:LCSH:UnitedStates.FederalAviationAdministration—Examinations—Studyguides.|Airplanes—Maintenanceandrepair—Examinations,questions,etc.|Aviationmechanics(Persons)—Certification—UnitedStates.|Airplanes—Motors—Maintenanceandrepair—Examinations,questions,etc.|LCGFT:Examinations.Classification:LCCTL671.9.C664682024(print)|LCCTL671.9(ebook)|DDC629.134/6—dc23/eng/20231002LCrecordavailableathttps://lccn.loc.gov/2023041443LCebookrecordavailableathttps://lccn.loc.gov/2023041444I~StudyXY

Page 5 of 16

Aviation Mechanic Oral and Practical Exam Guide (2024) - Page 5 preview image

ContentsPrefaceCertificationofMaintenanceAirmenHowtoUseThisGuideTheOralandPracticalTestsTHEGENERALORALANDPRACTICALTESTSA.FundamentalsofElectricityandElectronicsB.AircraftDrawingsC.WeightandBalanceD.FluidLinesandFittingsE.AircraftMaterials,Hardware,andProcessesF.GroundOperationsandServicingG.CleaningandCorrosionControlH.MathematicsI.Regulations,MaintenanceForms,Records,andPublicationsJ.PhysicsforAviationK.InspectionConceptsandTechniquesL.HumanFactorsTHEAIRFRAMEORALANDPRACTICALTESTSA.MetallicStructuresB.Non-MetallicStructuresC.FlightControlsD.AirframeInspectionE.LandingGearSystemsF.HydraulicandPneumaticSystemsG.EnvironmentalSystemsH.AircraftInstrumentSystemsI.CommunicationandNavigationSystemsJ.AircraftFuelSystemsK.AircraftElectricalSystemsL.IceandRainControlSystemsM.AirframeFireProtectionSystemsN.RotorcraftFundamentalsO.WaterandWasteSystemsTHEPOWERPLANTORALANDPRACTICALTESTSA.ReciprocatingEnginesB.TurbineEnginesC.EngineInspectionD.EngineInstrumentSystemsE.EngineFireProtectionSystemsF.EngineElectricalSystemsG.EngineLubricationSystemsH.IgnitionandStartingSystemsI.EngineFuelandFuelMeteringSystemsJ.ReciprocatingEngineInductionandCoolingSystemsK.TurbineEngineAirSystems

Page 6 of 16

Aviation Mechanic Oral and Practical Exam Guide (2024) - Page 6 preview image

L.EngineExhaustandReverserSystemsM.Propellers+Studyxy

Page 7 of 16

Aviation Mechanic Oral and Practical Exam Guide (2024) - Page 7 preview image

PrefaceCertificationasanaviationmechanicisamajorstepinyourcareer.Youwererequiredtohaveacertainlevelofexperiencetoqualifytotakeyourknowledgetests,andhavingpassedallsections,youarenowreadyforthefinalstep,theoralandpracticaltests.Theknowledgetestsarestrictlyobjectiveandverifyonlyyourknowledgeoffacts.Whentakingthem,youareinterfacingwithacomputerandthereisnopersonalinvolvement.Theoralandpracticaltestsaredifferent.Intheseyouworkdirectlywithanexperiencedmechaniconaone-on-onebasis.Thisexaminerisabletonotonlyjudgeyourmechanicalskills,buttoobservethewayyouthinkandseethewayyousolveproblems.Itisimportantthatyouapproachtheoralandpracticaltestswiththepropermentalattitude.Theexaminerhasonebasicthoughtinmind,thatofdeterminingwhetherornotyouhavethelevelofknowledge,skill,andriskmanagementneededforanentry-levelaviationmechanic.Theexaminerwillnottrytotrickyouinanyway,andheorshewantsyoutopassalmostasmuchasyoudo.Ifyouareaskedaquestiontowhichyoudonotknowtheanswer,admititratherthantrytobluffyourwaythrough.Ifyouaregivenaprojectthatyoudonotunderstand,discussitwiththeexaminer.Inparticular,avoidstumblingthroughaprojectthatyoulacktheabilitytoexecuteproperly.Theexaminerwilldiscusstheprojectwithyoubutwillshowlittleornotoleranceforyourdrivingaheadwithaprojectyouobviouslycannothandle.Theoralandpracticaltestsareyourlaststepstowardcertification,sostudythisguidecarefullyasitisdesignedtohelpyouprepareforthem.Wewishyousuccess.DaleCrane,2000PREFACETOTHEFIFTHEDITIONTheOralandPracticalExamprocessisnowguidedbytheAirmanCertificationStandards(ACS).TheACScon-tainsmanyofthesameknowledgesubjectsandskillsprojectsasthepreviousPracticalTestStandards(PTS),butthereislessemphasisonthedemonstrationofskillsthathavebecomespecializedtradessuchaswelding,woodstructures,andfabriccovering.Theknowledgesectionoftheexamnowincludesriskmanagementquestionsforwhichthestudentisexpectedtounderstandtherisksassociatedwithcertaintasksandexplaintheproperwaystomitigatethoserisks.AlloralandpracticalquestionsandprojectsarerandomlygeneratedfromtheFAAtestgenerator,andthelistofquestionsandprojectsarethengiventotheexaminer.Sincetheexaminerdoesnotknowwhichquestionsandprojectswillbeassigned,boththeexaminerandthestudentmustbepreparedforallpossibleprojects.Applicantsshouldexpecttoberetestedonsubjectstheymissedduringtheknowledgeexam;thesubjectsassociatedwiththecodesonyourAirmanKnowledgeTestReportwillberetestedduringtheOralandPracticalExam.KeithAnderson

Page 8 of 16

Aviation Mechanic Oral and Practical Exam Guide (2024) - Page 8 preview image

CertificationofMaintenanceAirmenTheFederalAviationAdministrationhasthreeclassificationsofmaintenanceairmen:repairman,authorizedin-spector,andaviationmechanic.Certificationineachcategoryhasspecialrequirementsandspecialprivileges.ThisOral&PracticalExamGuideappliestothetestsforAviationMechaniccertification,butallthreeclassifi-cationsaredescribedbelow.REPAIRMANTheapplicantforaRepairmanCertificatemustbeemployedforaspecificjobrequiringhisorherspecialqualifi-cationsbyacertificatedcommercialoperatororcertificatedaircarrier.Arepairmanapplicantmusthaveatleast18monthsofpracticalexperienceintheprocedures,practices,inspec-tionmethods,materials,tools,machinetools,andequipmentgenerallyusedinthemaintenancedutiesofthespe-cificjobforwhichheorsheistobeemployedandcertificated.Alternatively,theapplicantmaycompletespecial-izedformaltrainingthatisacceptabletotheadministratorandspecificallydesignedtoqualifytheapplicantforthejobforwhichheorsheistobeemployed.Arepairmanmayexercisetheprivilegesofthecertificateonlyinconnectionwiththedutiesforthecertificateholderbywhomtherepairmanwascertificatedandrecommended.Thereisaspecialtypeofrepairmancertificateissuedtothebuilderofanexperimentalaircraftwhichallowstheholdertoperformconditioninspectionsontheaircraftconstructedbyhimorher.AUTHORIZEDINSPECTORAnapplicantforanInspectionAuthorization(IA)must:«+HoldacurrentlyeffectiveAviationMechanicCertificatewithbothAirframeandPowerplantRatingsthathasbeenineffectforatotalofatleast3years.«Havebeenactivelyengaged,foratleastthe2-yearperiodbeforethedateofapplication,inmaintainingcivilcer-tificatedaircraft.«Haveafixedbaseofoperation.«Haveavailabletheequipment,facilities,andinspectiondatanecessarytoproperlyinspectairframes,power-plants,propellers,oranyrelatedpartorappliance.«Passaknowledgetestonhisorherabilitytoinspectaccordingtosafetystandardsforreturningaircrafttoser-viceaftermajorrepairsandmajoralterations,andannualandprogressiveinspectionsperformedunder14CFRPart43.TheholderofanInspectionAuthorizationmay:«Inspectandapproveforreturntoserviceanaircraftafteramajorrepairormajoralterationiftheworkhasbeendoneinaccordancewithtechnicaldatathathasbeenapprovedbytheadministrator.«Performanannualinspection,orperformorsuperviseaprogressiveinspection.AnInspectionAuthorizationexpiresonMarch31ofeachodd-numberedyearandmustberenewedforatwo-yearperiodatthattime.AVIATIONMECHANICTheFAAissuesanAviationMechanicCertificatewithanAirframeRating,PowerplantRating,orbothratingstoapplicantswhoareproperlyqualified.Belowaredescriptionsoftheexperience,knowledge,andpracticalrequire-mentsandsuggestedstudyreferencesforallthreeratings.RequirementsforMechanicCertification14CFRPart65,Certification:AirmenOtherThanFlightCrewmembers,coverstherequirementsformechaniccer-tification,describedbelow.|~,BasicRequirementsilStudyXY

Page 9 of 16

Aviation Mechanic Oral and Practical Exam Guide (2024) - Page 9 preview image

«Mustbeatleast18yearsofage.«Mustbeabletoread,write,speak,andunderstandtheEnglishlanguage,orinthecaseofanapplicantwhodoesnotmeetthisrequirementandwhoisemployedoutsideoftheUnitedStatesbyaU.S.aircarrier,havehisorhercertificateendorsed“ValidonlyoutsidetheUnitedStates.”«Musthavepassedalloftheprescribedtestswithinaperiodof24months.ExperienceRequirementsMusthaveagraduationcertificateorcertificateofcompletionfromacertificatedaviationmaintenancetechnicianschool,ordocumentaryevidence,satisfactorytotheAdministrator,of:«Atleast18monthsofpracticalexperiencewiththeprocedures,practices,materials,tools,machinetools,andequipmentgenerallyusedinconstructing,maintaining,oralteringairframesorpowerplantsappropriatetotheratingsought;or«Atleast30monthsofpracticalexperienceconcurrentlyperformingthedutiesappropriatetoboththeairframeandpowerplantratings.KnowledgeRequirementsandKnowledgeTestsAftermeetingtheapplicableexperiencerequirements,eachapplicantforanAviationMechanicCertificatemustpassaknowledgetestcoveringtheconstructionandmaintenanceofaircraftappropriatetotheratingsought,theregulationsthatpertaintotherating,andtheapplicableprovisionsof14CFRPart43(Maintenance,PreventiveMaintenance,Rebuilding,andAlteration)andPart91(GeneralOperatingandFlightRules).ThebasicprinciplescoveringtheinstallationandmaintenanceofpropellersareincludedinthePowerplanttest.Theapplicantmustpasseachsectionoftheknowledgetestbeforeapplyingfortheoralandpracticaltests.Therearethreeknowledgetests,aGeneraltestthatisrequiredforbothratings,andtestsforboththeAirframeandPowerplantRatings.AnapplicantfortheAirframeRatingmustpasstheGeneralandtheAirframetest,andanapplicantforthePowerplantRatingmustpasstheGeneralandPowerplanttest.TheGeneraltestneedstobetakenonlyonetime.Alltestquestionsaretheobjective,multiple-choicetypewiththreechoicesofanswers.Themin-imumpassinggradeforeachtestis70percent.TheGeneraltestconsistsof60multiple-choicequestionsselectedbycomputerfrommorethan600questionsintheAviationMechanic—Generaltestquestionbank.Youareallowed2hourstotakethistest.TheAirframeandPowerplanttestseachconsistof100multiple-choicequestionstakenfromthemorethan1,000-questionAviationMechanic—Airframeandthemorethan1,000-questionAviationMechanic—Powerplanttestquestionbanks.Youareallowed2hoursforeachofthesetests.IfthescoreonyourAirmanKnowledgeTestReportis70orabove,thereportisvalidfor24calendarmonths.Youmayelecttoretakethetestinanticipationofabetterscore,after30daysfromthedateyourtestwastaken.Thescoreofthelatesttestyoutakewillbecometheofficialtestscore.Ifyoufailaknowledgetest,youmayapplyforretestingbefore30daysifyoupresentthefailedtestreportandanendorsementfromanauthorizedAviationMechanicCertificateholder.Thisendorsementmustcertifythatadditionalinstructionhasbeengivenandthatyouhavebeenfoundcompetenttopassthetest(theendorsementisnotnecessaryifyouwait30days).SkillRequirementsEachapplicantforanAviationMechanicCertificateorRatingmustpassanoralandapracticaltestontheratingsoughtbydemonstratingtheassignedobjectivesfortherelevantsubjectareascontainedintheAviationMechanicGeneral,Airframe,andPowerplantAirmanCertificationStandards(FAA-S-ACS-1).Theoralandpracticalportionofthetestsassessestheapplicant'sapplicationoftheknowledge,riskmanagement,andskillinthesesubjectareas.Thesetestingproceduresarecoveredin“TheOral&PracticalTests”laterinthissection.AnapplicantforaPowerplantRatingmustshowhisorherabilitytomakesatisfactoryminorrepairstoandminoralterationsofpropellers.Theexaminerwilldownloadanoralandpracticalexaminationthatisgeneratedatrandomforeachapplicant.Eachcandidateshouldbefamiliarwithalltheknowledge,riskmanagement,andskill“awithintheappropriateairmancertificationstandards.

Page 10 of 16

Aviation Mechanic Oral and Practical Exam Guide (2024) - Page 10 preview image

HowtoUseThisGuideTheASATestGuidesforGeneral,Airframe,andPowerplantMechanichavebeenspeciallypreparedtohelpyougetreadytotakeyourFAAknowledgetests.Thesamematerialiscoveredinyouroralandpracticaltests,soitisimportanttoreviewallofthequestionsandanswersintheknowledgetestportionoftheseGuidesinpreparationforyourO&P.ThequestionsinthisAviationMechanicOral&PracticalExamGuidearetypicalofthoseyouwilllikelybeasked.TheSkillssectionineachsubjectareaincludesthepracticalprojectsthataretypicalofthosethedesig-natedmechanicexaminer(DME)willbeapttousetocheckyourlevelofskill.TheactualquestionsandprojectswillbechosenatrandombytheFAAtestgenerator,toincluderetestingknowledgeprovendeficientontheKnowl-edgeExams,andwillbegiventoyourDMEtobeusedduringtheevaluation.Yourexaminerisaknowledgeablemechanicwhocanevaluateyourcapabilities,sodon'ttryto“snow”theexaminerwithwordswhenyoudon’tknowtheanswer,anddon’tattemptanyprojectthatyouarenotcompetenttohandle.Itisfarbettertoadmityourlackofknowledgeorskillthantoblunderintoaprojectandshowthatyoulackthejudgmenttoproperlyevaluateyourcapabilities.AllquestionsandskillelementsinthisguidearefollowedbythecorrespondingACScode(e.g.,AM.L.A.K1)thattheyalignwithtoaidyouinpreparingforthetests.SeeamoredetailedexplanationofACSelementcodesunderthe“TestStandards”section.REFERENCECODESUSEDINTHISGUIDEIncludedineachsectionofthisguidearereferencestootherASAresources,FAAhandbooks,FAAAdvisoryCircu-lars(ACs),FederalAviationRegulations,andotherstudymaterialsthatapplyspecificallytothatsectionorsubjectcovered.Theseresourcesaswellasadditionaldocumentsthatarevaluableinpreparingyouforyouroralandpracticalexamarelistedbelow.14CFRTitle14oftheCodeofFederalRegulations(ApplicablepartsareavailableinASA'sFAR-AMT)AC25-11ElectronicFlightDisplaysAC25.1455-1WasteWater/PotableWaterDrainSystemCertificationTestingAC39-7AirworthinessDirectivesAC43-4CorrosionControlforAircraftAC43-9MaintenanceRecordsAC43.131AcceptableMethods,Techniques,andPractices—AircraftInspectionandRepairAC43.13-2AcceptableMethods,Techniques,andPractices—AircraftAlterationsAC43-215StandardizedProceduresforPerformingAircraftMagneticCompassCalibrationAC45-2IdentificationandRegistrationMarkingAC60-11TestAidsandMaterialsthatMaybeUsedbyAirmanKnowledgeTestingApplicantsAC60-28FAAEnglishLanguageStandardforanFAACertificateIssuedUnder14CFRParts61,63,65,and107AC65-2AirframeandPowerplantMechanic'sCertificationGuideAC120-39HazardsofWasteWaterIceAccumulationSeparatingfromAircraftinFlightAC120-72MaintenanceHumanFactorsTrainingAC150/5210-20GroundVehicleOperationstoincludeTaxiingorTowinganAircraftonAirportsASA-MHBAviationMechanicHandbook(ASA)+StudyXY

Page 11 of 16

Aviation Mechanic Oral and Practical Exam Guide (2024) - Page 11 preview image

DOT/FAA/AM-11/10FatigueRiskManagementinAviationMaintenance:CurrentBestPracticesandPotentialFutureCountermeasuresFAA-H-8083-1AircraftWeightandBalanceHandbookFAA-H-8083-2RiskManagementHandbookFAA-H-8083-25Pilot'sHandbookofAeronauticalKnowledgeFAA-H-8083-30AviationMaintenanceTechnicianHandbook—GeneralFAA-H-8083-31AviationMaintenanceTechnicianHandbook—AirframeFAA-H-8083-32AviationMaintenanceTechnicianHandbook—PowerplantFAA-S-ACS-1AviationMechanicGeneral,Airframe,andPowerplantAirmanCertificationStandardsPOH/AFMPilot'sOperatingHandbook/FAA-ApprovedAirplaneFlightManualBesuretousethelatestversionsofthesereferenceswhenreviewingforthetest.MostofthesedocumentsareavailableontheFAA'swebsite(www.faa.gov).Additionally,someoftheseresources(FAAhandbooks,ACS,andCodeofFederalRegulations)arereprintedbyASA(asaz2fly.com)andareavailablefromaviationretailersworld-wide.

Page 12 of 16

Aviation Mechanic Oral and Practical Exam Guide (2024) - Page 12 preview image

TheOralandPracticalTestsPREREQUISITESAllapplicantsmusthavemettheprescribedexperiencerequirementsasstatedin14CFR§65.77.Inaddition,allapplicantsmustprovide:1.ProofofhavingunexpiredpassingcreditfortheAviationMechanicGeneral(AMG)knowledgetestbypre-sentinganAirmanKnowledgeTestReport(exceptwhenproperlyauthorizedundertheprovisionsof14CFR§65.80totakethepracticaltestsbeforetheairmanknowledgetests).2.Identificationwithaphotographandsignature.TESTSTANDARDSTheexaminerwilldownloadanoralandpracticalexaminationthatisgeneratedforeachapplicantthatreflectstheknowledge,riskmanagement,andskillelementsforeachrelevantsubjectareaasdetailedintheAirmanCertifi-cationStandards(ACS).TheACSconsistsofthreeSections:General,Airframe,andPowerplant.Subjectsaretheareasinwhichaviationmechanicapplicantsmusthaveknowledgeanddemonstrateskill.TheObjectiveofeachsubjectstateswhattheapplicantshouldknow,consider,anddo,asappropriate.Theknowledge,skill,andriskmanagementElementsaretheitemsthatshouldbeperformedoransweredac-cordingtostandardsacceptabletotheFAA.Referencesidentifythepublication(s)thatdescribethetask.(Informationcontainedinmanufacturerand/orFAA-approveddataalwaystakesprecedenceovertextbookreferenceddata.)ElementcodesintheACSaredividedintofourcomponents.Forexample,AM.LAKi:AM=ACS(AviationMechanic)|=Section(General)A=Subject(FundamentalsofElectricityandElectronics)K1=KnowledgeElement(Electrontheory[conventionalflowvs.electronflow.])KnowledgetestquestionsarelinkedtotheACScodes.TheAirmanKnowledgeTestReport(AKTR)listsanACScodethatcorrelatestoaspecificsubjectelementforagivensectionandsubject.Thiswillallowremedialinstruc-tionandre-testingtobespecificandbasedonexplicitlearningcriteria.TheFAAencouragesapplicantsandin-structorstousetheACSwhenpreparingfortests.Thefollowingtermsapplytoeachelement:«Inspectmeanstoexamine(withorwithoutinspectionenhancingtools/equipment).+Checkmeanstoverifyproperoperation.«Troubleshootmeanstoanalyzeandidentifymalfunctions.«Servicemeanstoperformfunctionsthatassurecontinuedoperation.+Repairmeanstocorrectadefectiveconditionandrepairofanairframeorpowerplantsystemincludingcomponentreplacementandadjustment.+Overhaulmeanstodisassemble,clean,inspect,repairasnecessary,andreassemble.Theapplicantshouldbewellpreparedinallknowledge,skill,andriskmanagementelementsincludedinthestandards.Satisfactoryperformancetomeettherequirementsforcertificationisbasedontheapplicant'sabilityto:1.Showbasicknowledge.2.Demonstratebasicmechanicskills.3.Performtheskillelementswithinthestandardsofthereferencematerials.Thepracticaltestispassedif,inthejudgmentoftheexaminer,theapplicantdemonstratestheprescribedlevelofproficiencyontheassignedelementsineachsubjectarea.Eachpracticalexaminationitemmustbeperformed,ataminimum,totheperformancelevelintheairmancertificationstandards.If,inthejudgmentoftheexaminer,theapplicantdoesnotmeetthestandardsofany8|Studyxy|formed,theassociatedsubjectisfailedandtherefore,thepracticaltestisfailed.

Page 13 of 16

Aviation Mechanic Oral and Practical Exam Guide (2024) - Page 13 preview image

Typicalareasofunsatisfactoryperformanceandgroundsfordisqualificationare:1.Anyactionorlackofactionbytheapplicantthatrequirescorrectiveinterventionbytheexaminerforreasonsofsafety.2.Failuretofollowrecommendedmaintenancepracticesand/orreferencematerialwhileperformingprojects.3.Exceedingtolerancesstatedinthereferencematerial.4.Failuretorecognizeimproperprocedures.5.Theinabilitytoperformtoareturn-to-servicestandard,whereapplicable.6.Inadequateknowledgeinanyofthesubjectareas.Whenanapplicantfailsatest,theexaminerwillrecordtheapplicant'sunsatisfactoryperformanceandelementsnotcompletedintermsofsubjectsappropriatetothepracticaltestconducted.

Page 14 of 16

Aviation Mechanic Oral and Practical Exam Guide (2024) - Page 14 preview image

TheGeneralOralandPracticalTestsThereare12subjectareasthataretestedontheGeneralOralandPracticalExams.Foreachsubjectarea,thisguideprovidestypicaloralquestionsandsuccinctanswersfortheknowledgeandriskmanagementelementsandpresentstheskillsthatapplicantsmustunderstandanddemonstrate.I.GeneralA.FundamentalsofElectricityandElectronicsB.AircraftDrawingsC.WeightandBalanceD.FluidLinesandFittingsE.AircraftMaterials,Hardware,andProcessesF.GroundOperationsandServicingG.CleaningandCorrosionControlH.MathematicsI.Regulations,MaintenanceForms,Records,andPublicationsJ.PhysicsforAviationK.InspectionConceptsandTechniquesL.HumanFactors

Page 15 of 16

Aviation Mechanic Oral and Practical Exam Guide (2024) - Page 15 preview image

A.FundamentalsofElectricityandElectronicsReferences:AC43.13-1;FAA-H-8083-30KNOWLEDGE1.Whatisthedifferencebetweentheconventionalcurrentflowtheoryandelectronflow?(AM.I.A.K1)Conventionalcurrentflowtheoryisavisualizationofcurrentasflowingfrompositivetonegative.Inactualprac-tice,electronsinacircuitflowfromnegativetopositive(electrontheory).2.Howcanyoufindthepolarityofanelectromagnet?(AM.I.A.K2)Holdtheelectromagnetinyourlefthandwithyourfingersencirclingthecoilinthedirectionelectronsflow(fromnegativetopositive).Yourthumbwillpointtothenorthpoleoftheelectromagnet.3.Whatconstitutesacapacitor?(AM.1.A.K3)Twoconductorsseparatedbyaninsulator.4.Whatisthepurposeofacapacitor?(AM.I.A.K3)Itstoreselectricalenergyinelectrostaticfields.5.Whatisthebasicunitofcapacitance?(AM.I.AK3)Thefarad.6.WhyshouldelectrolyticcapacitorsnotbeusedinanACcircuit?(AM.I.A.K3)Theyarepolarized.Anelectrolyticcapacitorwillpasscurrentofonepolarity,butwillblockcurrentoftheoppositepolarity.7.Whatismeantbyinductance?(AM.I.A.K4)Theabilitytostoreelectricalenergyinelectromagneticfields.8.Whatisthebasicunitofinductance?(AM.1.A.K4)Thehenry.9.GiventheinductanceandthefrequencyoftheACinacircuit,howdoyoucomputetheinductivereactancecausedbythecoil?(AM.1.A.K4)x.=2nflLWhere:x.=inductivereactanceinohmsf=frequencyincyclespersecondm=3.1416L=inductanceForexample,inanACseriescircuitinwhichtheinductanceis146mH(millihenry)andthevoltageis110voltsatafrequencyof60cps,theinductivereactanceisdeterminedbythefollowingmethod:xr=2mxfxLXL=6.28X60x0.146XL=550hm10.DoesacapacitorinanACcircuitcausethecurrenttoleadorlagthevoltage?(AM.I.AKs)Itcausesthecurrenttoleadthevoltage.11.DoesaninductorinanACcircuitcausethecurrenttoleadorlagthevoltage?(AM.1.AKs)Itcausesthecurrenttolagbehindthevoltage.12.WhatisthebasicunitofpowerinaDCcircuit?(AM.1.A.K6)Thewatt.vv+StudyXy

Page 16 of 16

Aviation Mechanic Oral and Practical Exam Guide (2024) - Page 16 preview image

13.WhathappenstothecurrentinaDCcircuitifthevoltageisincreasedbuttheresistanceremainsthesame?(AM.LAK6)Itincreases.14.Whatarefivesourcesofelectricalenergy?(AM.1.A.K7)Magnetism,chemicalenergy,light,heat,andpressure.15.Whichlawofelectricityisthemostimportantforanaircraftmechanictoknow?(AM.1.AK7)Ohm'slaw.16.WhataretheelementsofOhm’slaw?VoltageE,current|,andresistanceR(volts,amps,andohms).17.Whatisthenameofthelawthatdescribestherelationshipinanelectricalcircuitofvoltage,current,andresis-tance?(AM.1.AKya)Ohm'slaw.18.WhatisthebasicequationofOhm’slaw?(AM.1.A.K7a)E=IxR19.WhatisKirchhoff’svoltagelaw?(AM.I.A.K7b)Kirchhoff'svoltagelawstatesthatthealgebraicsumofallvoltagesaroundaclosedpathorloopiszero.Anotherwayofsayingitisthatthesumofallthevoltagedropsequalsthetotalsourcevoltage.20.Whatistheformulafordeterminingpower?(AM.I.A.K7c)Generalpowerformula:P=1xEWhere:P=Power,|=Current,E=Volts21.WhatisFaraday’slaw?(AM.1.A.K7d)Faraday’slaw,orthelawofelectromagneticinduction,statesthattheinducedEMForelectromagneticforceinaclosedloopofwireisproportionaltotherateofchangeofthemagneticfluxthroughacoilofwire.22.WhatisLenz'slaw?(AM.I.A.K7e)Lenz'slawstatesthattheEMFinducedinanelectriccircuitalwaysactsinsuchadirectionthatthecurrentitdrivesaroundaclosedcircuitproducesamagneticfield,whichopposesthechangeinmagneticflux.23.Whatistheright-handmotorrule?(AM.1.A.K7f)Whentheindexfingeroftherighthandispointedinthedirectionofthemagneticfieldandthesecondfingerinthedirectionofcurrentflow,thethumbindicatesthedirectionthecurrentcarryingwiremoves.24.Whatismeantbyakilowatt?(AM.I.A.K8)1,000watts.25.Whatismeantbyamegawatt?(AM.1.AK8)1,000,000watts.26.Whatinstrumentisusedtomeasurecurrentflow?(AM.1.A.K8)Anammeter.27.Whatisamegohm?(AM.I.A.K8)Onemillion(1,000,000)ohms.28.Whatinstrumentisusedtomeasureelectricalresistance?(AM.I.A.K8)Anohmmeter.29.Whenmeasuringresistanceofacomponentwithanohmmeter,shouldthecircuitbeJ+study|TStudyXYNo,thereshouldbenopoweronthecircuit.y

Preview Mode

This document has 201 pages. Sign in to access the full document!

Report

Learning Tools

Writing Tools

Browse Resources

Aviation Mechanic Oral and Practical Exam Guide (2024) - Page 1

Study Now!

Document Details

Related Documents

SAP S/4HANA Sales Certification Guide: Application Associate Exam (2021)

SAP HANA 2.0 Certification Guide: Technology Associate Exam (2021)

SAP S/4HANA Business Process Integration Certification Guide: Application Associate Exam (2021)

SAP S/4HANA Production Planning and Manufacturing Certification Guide: Application Associate Exam (2022)

2023 CMY2601 Crime Risk Perspectives Practice Exam with Answers (130 Solved Questions)

LETRS Unit 4 Assessment with Answers (15 Solved Questions)

NCC EFM Exam Breakdown and Study Guide with Answers (72 Solved Questions)

2023 AVID Media Composer 101 Certification Practice Exam with Answers (233 Solved Questions)

Indiana For Hire Endorsement Practice Exam with Answers (34 Solved Questions)

State of Colorado Question and Verified Answers with Answers (40 Solved Questions)

Company

Explore

Study Tools