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MED GAS STUDY GUIDE QUESTIONS WITH CORRECT ANSWERS 2025

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MED GAS STUDY GUIDE QUESTIONS WITH CORRECT ANSWERS 2025

Institution
MEDICAL GAS CERTIFICATION PRE-TEST
Course
MEDICAL GAS CERTIFICATION PRE-TEST

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MED GAS STUDY GUIDE QUESTIONS
WITH CORRECT ANSWERS 2025/2026
WhenAisAtheAinitialApressureAtestAconducted,AbyAaAmedicalAgasAinstaller,AonAaAnitrousAoxideAsyst
em?A-AcorrectAanswersAfterAblowdownAofAaAdistributionApiping

InAthoseAportionsAofAsystemsAintendedAtoAhandleAoxygenAatApressuresAgreaterAthanA350ApsiAth
eAinterconnectingAhoseAshallANOTAcontainA________Amaterials?A-AcorrectAanswersPolymeric

InAaACategoryA1ADentalAandAGasAVacuumAPipingAsystem,AwhichAofAtheAfollowingAisAanANFPAA99A
requirementAforAtheAlabelingAofApipes?A-AcorrectAanswersColorAcodingA&Anon-
standardApressure

WhichAofAtheAfollowingAtreatmentsAshallAbeAperformedAbeforeAbrazingAcutAendsAofAaAtubeAtoAb
eAinstalledAinAaAmedicalAgasApipingAsystem?A-
AcorrectAanswersCutAendsAshallAbeArolledAsmoothAorAdeburred



ManifoldsAforAgasAcylindersAshallAactuateAa(an)A_______AsignalAandAshallAactivateAanAindicatorA
atAallA_______AalarmApanelsAtoAindicateAwhenAorAjustAbeforeAchangeoverAfromAoneAheaderAtoA
theAother.A-AcorrectAanswersLocal,Amaster

InAaAnon-
anesthetizingAarea,AonAwhichAsideAofAaAzoneAvalveAshallAtheApressure/vacuumAsensorAbeAlocat
ed?A-AcorrectAanswersStationAoutlet/inlet

WhatAisAtheApurposeAofAusingAanAoxygenAanalyzerAduringAtheApipingApurgeApriorAtoAbrazing?A-
AcorrectAanswersAssureAthatAallAambientAairAhasAbeenAremovedAfromAtheApipeline



AAmedicalAgasAmasterAorAareaAalarmApanelAshallAbeAsetAtoAactuateAa(an)A_____AindicatorAwhen
AtheAcommunicationAwithAanAalarm-initiatingAdeviceAisAdisconnected.A-


AcorrectAanswersAudibleAandAvisual



WhenAanAEOSCAbecomesAtheAtemporaryAsupplyAsource,AaAfacilityAwillAmonitorAtheAsystemAbyAu
seAofAwhichAofAtheAfollowing?A-
AcorrectAanswersProvidingAfourAconnectionApointsAtoAbothAmasterAalarms



WhichAofAtheAfollowingAconditionsAmustAbeAmetAwhereAmedicalAgasAandAvacuumAsystemsAareAi
nstalledAbyAnon-certifiedApersonnel?A-
AcorrectAanswersinstallationAbyAanyoneAotherAthanA6010AcertifiedApersonnelAisANOTApermitted



WhichAofAtheAfollowingAsystemsAshallANOTAbeApermittedAtoAbeAlocatedAinAanAoutdoorAenclosur
e?A-AcorrectAanswersMedicalAairAcompressorAsupplyAsources

MetallicAflexibleAjointsAareAbeingAusedAinAtheApipelineAforAvibrationAcontrol.AWhichAofAtheAfollo
wingAisANOTArequiredAofAsuchAjoints?A-
AcorrectAanswerssuitableAforAserviceAatA150ApsigAorAabove

,whoAshallAwitnessAtheAinstaller-performedAstandingAvacuumAtest?A-
AcorrectAanswerstheAauthorityAhavingAjurisdiction,AorAitsAdesignee



theAmedicalAairAcompressorAintakeAshallAbeAlocatedAaAminimumAofAhowAmanyAfeetAfromAanyAe
xhaustAorAplumbingAvents?A-AcorrectAanswers25Afeet

theAgasAproducedAbyAevaporationAfromAtheAsecondaryAheaderAinAaAcryogenicAliquidAcylinderAsy
stemAshallAenterAtheAsupplyAsystemA________AofAtheAfinalAlineAregulator.A-
AcorrectAanswersupstream



withAtheAapprovalAofAtheAAuthorityAHavingAJurisdiction,AinAwhichAareasAshallAtheAzoneAvalvesAb
eApermittedAtoAbeAsecuredAtoApreventAinappropriateAaccess?A-AcorrectAanswerspediatric

factoryAinstalledAinletAtubesAonAstationAoutletsAshallAbeANOTAlessAthanA__________withA0.3Ain
chAminimumAinsideAdiameter.A-AcorrectAanswersNPSA1/4,A3/8Ain.AO.D.

whichAofAtheseAoperationsAwouldAnotAbreachAtheAvacuumAsystem?A-
AcorrectAanswerstestingAaAsystemAcomponentAwithAaAleakAdetectorAsolution



exceptAforAvalvesAinAzoneAvalveAboxes,AallAvalvesAshallAbeAlocatedAinAsecuredAareasAsuchAasAlock
edApipeAchases,AorAbeA__________.A-AcorrectAanswerslatchedAorAlockedAinAoperationAposition

medicalAgasACentralASupplyAsystemsAareANOTApermittedAtoAbeAlocatedAwhere?A-
AcorrectAanswersinAanAunlockedAlocation



fittings,Avalves,AandAotherAcomponentsAforAfield-
installedApositiveApressureAdistributionAsystemsAshallAbeA________AuntilApreparedAforAinstallat
ion.A-AcorrectAanswersdeliveredAsealed,Alabeled,AandAkeptAsealed

vacuumApipingAforA__________AshallAbeAconnectedAseparatelyAfromAtheAmedicalAsurgicalAsyst
emAdirectlyAtoAtheAreceiverAtankAthroughAitsAownAisolationAvalveAandAfluidAtrapAlocatedAatAtheA
receiver.A-AcorrectAanswersaAteachingAlaboratory

NFPAA99AspecifiesAthatAtheAmedicalAgasApipingAsystemAshallAbeAprotectedAagainstAallAEXCEPTAw
hichAofAtheAfollowing?A-AcorrectAanswersexposureAtoAliquids

categoryA1AsupportAgassesAcarryAwhichAofAtheseAadditionalAhazards?A-
AcorrectAanswershigherApressures



manufacturedAassembliesAforAmedicalAgasAsystemsAemployingAflexibleAhoseAshallAuseAflexibleA
connectorsAwithAaAminimumAburstAgaugeApressureAofAhowAmanyApsi?A-AcorrectAanswers1000

anAassemblyAofAequipmentAthatAholdsAaAcapacityAofAoxygenAgreaterAthanA____________AisAdef
inedAasAaABulkAOxygenASystemA-AcorrectAanswers20,000Aft^3

whatAdoesAitAmeanAwhenAequipment,AmaterialAorAservicesAareAshowsAasA"listed"?A-
AcorrectAanswerstheyAareAidentifiedAandApublishedAbyAanAorganizationAthatAisAacceptableAtoAth


eAauthorityAhavingAjurisdiction

, underAwhichAofAtheseAconditionsAshallAinstrumentAairAreserveAheaderAcylindersAbeApermittedAt
oAbeAstoredAwithAtheAinstrumentAairAcompressor?A-AcorrectAanswerstheAonlyAmotor-
drivenAmachineryAinAtheAroomsAisAforAtheAinstrumentAairAequipment.

whichAtypeAofAcopperAtubeAhangersAshallAbeAusedAinAaApotentiallyAdampAlocation?A-
AcorrectAanswersplasticAcoated



stainlessAtubesAmayAbeAjoinedAbyAanyAmethodsAEXCEPTAwhichAofAtheAfollowing?A-
AcorrectAanswersBraze



gasAstorageAforACentralASupplyASystemsArequiredAspecializedAknowledgeAandAconsiderationAofA
informationAinAtheANFPAA55AforAlocating,AinstallingAandAinspectionAofAwhichAofAtheAfollowing?A-
AcorrectAanswersBulkAGas



allApressureAreliefAvalvesAshallAbeAmadeAofA______Abrass,AorAbronze.A-
AcorrectAanswersstainlessAsteel



theAreserveAheaderAinAaAcryogenicAliquidAcylinderAmanifoldAsystemAshallAhaveAsufficientAcylind
erAconnectionsAforAoneAaverageAday'sAsupply,AbutANOTAfewerAthanAhowAmanyAconnections?A-
AcorrectAanswers3



allAfittingsAforAmedicalAgasAworkAshallAbeAkeptAseparateAfromAotherAtoolsAandAkeptAfreeAofAgrea
seAorAoil.AIfAcleaned,AonlyAaAdegreaserAsuchAasA__________AisApermitted.A-
AcorrectAanswerstrisodiumAphosphateAorAsodiumAcarbonateAwithApotableAwater



stationAoutlets/inletsAshallAbeAidentifiedAasAtoAtheA________AforAtheAspecificAgasAorAvacuumApr
ovided.A-AcorrectAanswersnameAorAchemicalAsymbol

whenAbrazing,AjointsAshallAbeAcontinuouslyApurgesAwithAoil-
free,AdryAnitrogenANFAtoApreventAtheAformationAofA__________AonAtheAinsideAsurfacesAofAtheAj
oint.A-AcorrectAanswerscopperAoxide

aAbulkAcryogenicAsupplyAcontainsAparallel-
pipedAduplexAlineAregulators.AWhichAofAtheAfollowingAisAaArequirementAforAcontrolsAforAlineApr
essure?A-AcorrectAanswersaAbalancedAdesign

inAanAEmergencyAOxygenASupplyAconnection,AtheAcheckAvalvesAareArequiredAtoAbeAconstructed
AofAwhichAofAtheAfollowingAmaterials?A-AcorrectAanswersBrassAorABronze



whichAofAtheAfollowingAisAaArequirementAforAtheAconfigurationAofAaAzoneAvalve?A-
AcorrectAanswersplacedAsuchAthatAaAwallAintervenesAbetweenAtheAvalvesAandAtheAinlets/outlet


sAtheyAcontrol

whichAsourceAshallANOTAbeAusedAtoApowerAtheAventuriAofAaAWAGDAsystem?A-
AcorrectAanswersmedicalAair



whichAofAtheseAisAaArequirementAforAeachAstationAinlet?A-AcorrectAanswersaAprimaryAvalve

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Institution
MEDICAL GAS CERTIFICATION PRE-TEST
Course
MEDICAL GAS CERTIFICATION PRE-TEST

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Number of pages
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