Medical Gas Nfpa 99 Exam Questions And Correct Answers Latest Update 2026/2027 Graded A+.

MEDICAL GAS NFPA 99 EXAM QUESTIONS
AND CORRECT ANSWERS LATEST UPDATE
2026/2027 GRADED A+.


NitrousAoxideAcylindersAshallAbeApreventedAfromAreachingAtemperatur
esAinAexcessAof.A-AcorrectAanswers125AdegreesAF


CarbonAdioxideAcylindersAshallAbeApreventedAfromAreachingAtemperta
uresAbelow.A-AcorrectAanswers20AdegreesAF


CentralAsupplyAsystemsAforApositiveApressureAgassesAshallAhaveAoneAorA
moreAreliefAvalvesAwithAtheAreliefAsettingAaboveAnromalAoperatingApre
ssure.A-AcorrectAanswers50%


ActivitiesA,AsystemsA,AorAequipmentAwhoseAfailureAisAlikelyAtoAcauseAma
jorAinjuryAorAdeathAofApatients,Astaff,AorAvisitors.A
correctAanswersCategoryA1


Activities,Asystems,AorAequipmentAwhoseAfailureAisAlikelyAtoAcauseAmin
orAinjuryAtoApatients,Asta ff,AorAvisitors.A-AcorrectAanswersCategoryA2


Activities,Asystems,AorAequipmentAwhoseAfailureAisAnotAlikelyAtoAcauseAi
njuryAtoApatients,Astaff,A orAvisitorsAbutAcanAcauseAdiscomfort.A-
AcorrectAanswersCategoryA3

,Activites,Asystems,AorAequipmentAwhoseAfailureAwouldAhaveAnoAimpac
tAonApatientAcare.AAcorrectAanswersCategoryA4


TheAnumberAofAcylindersAinAanAInstrumentAAirAStandbyAheaderAshallAb
eAadequateAforAthisAamo untAofAtime.A-AcorrectAanswers1Ahour




OrbitalAweldedAtestAcouponsAshallAbeAinspectedAatAtheAstartAofAworkAa
ndAatAaAminimumAofAho wAmanyAhoursAthereafter?A-
AcorrectAanswers4Ahours




CopperAJointsAthatAhaveAbeenAcleanedAorAbrazingAshallAbeAbrazedAwith
inAthisAtime.AAcorrectAanswers8Ahours


AlternativeAairAforAMedicalAAirAcompressorAintakesAmustAbeAatAhandA7A
daysAperAweekAandAho wAmanyAhoursAperAday.A-
AcorrectAanswers24Ahours




MoistureAconcentrationAofAoutletsAduringAtheAverifierAPipingAPurityATe
stAshallAnotAexceedAthisA ppm.A-AcorrectAanswers500Appm
TheAlocalAalarmAofAtheAMedialAAirAshallAactivateAwhenAtheAdewApointAi
sAoverAtheAtemperature. A-AcorrectAanswers35AdegressAF

, TheAMasterAAlarmAwillAactivateAwhenAtheAmedicalAgasAlineAnormalApre
ssureAincreasesAorAdecr easesAbyAthisApercentageAamount.A-
AcorrectAanswers20%




ThisAisAtheAapproximateApercentageAofAtheAearth'sAatmosphereAthatAisA
oxygen.A-
A correctAanswers21%


CompletedAManufacturedAAssesmbliesAbeingAtestedAatA20%AaboveAop
eratingApressureAshallAn otAexceedthisApercentageAforAleakage?A-
AcorrectAanswers0.5%




MaximumAoxygenApercentageAcontentAinAaAMedicalAAirAProportioningA
systemAshallAbeAnoAhigh erAthan?A-AcorrectAanswers23.5%


CombustibleAliquidsAinAmedicalAgasAsystemsAareAthoseAwhichAhaveAaAfl
ashApointAatAorAaboveAth is.A-AcorrectAanswers100AdegreesAF


TheAqualityAofAinstrumentAairAshallAbeAfilteredAtoAthisAmicronAlevel.A-
AcorrectAanswers0.01




TheAqualityAofAmedicalAairAsupplyAshallAnotAexceedAthisAppmAcontentAg
aseousAhydrocarbons.AAcorrectAanswers25