MED GAS STUDY GUIDE QUESTIONS AND VERIFIED ANSWERS

MED GAS STUDY GUIDE QUESTIONS
AND VERIFIED ANSWERS
WhenA2isA2theA2initialA2pressureA2testA2conducted,A2byA2aA2medicalA2gasA2installer,A2onA2a
A2nitrousA2oxideA2system?A2-A2Ans--AfterA2blowdownA2ofA2aA2distributionA2piping


InA2thoseA2portionsA2ofA2systemsA2intendedA2toA2handleA2oxygenA2atA2pressuresA2greaterA
2thanA2350A2psiA2theA2interconnectingA2hoseA2shallA2NOTA2containA2________A2materials
?A2-A2Ans--Polymeric

InA2aA2CategoryA21A2DentalA2andA2GasA2VacuumA2PipingA2system,A2whichA2ofA2theA2follow
ingA2isA2anA2NFPAA299A2requirementA2forA2theA2labelingA2ofA2pipes?A2-A2Ans--
ColorA2codingA2&A2non-standardA2pressure

WhichA2ofA2theA2followingA2treatmentsA2shallA2beA2performedA2beforeA2brazingA2cutA2ends
A2ofA2aA2tubeA2toA2beA2installedA2inA2aA2medicalA2gasA2pipingA2system?A2-A2Ans--
CutA2endsA2shallA2beA2rolledA2smoothA2orA2deburred

ManifoldsA2forA2gasA2cylindersA2shallA2actuateA2a(an)A2_______A2signalA2andA2shallA2activ
ateA2anA2indicatorA2atA2allA2_______A2alarmA2panelsA2toA2indicateA2whenA2orA2justA2before
A2changeoverA2fromA2oneA2headerA2toA2theA2other.A2-A2Ans--Local,A2master


InA2aA2non-
anesthetizingA2area,A2onA2whichA2sideA2ofA2aA2zoneA2valveA2shallA2theA2pressure/
vacuumA2sensorA2beA2located?A2-A2Ans--StationA2outlet/inlet

WhatA2isA2theA2purposeA2ofA2usingA2anA2oxygenA2analyzerA2duringA2theA2pipingA2purgeA2pr
iorA2toA2brazing?A2-A2Ans--
AssureA2thatA2allA2ambientA2airA2hasA2beenA2removedA2fromA2theA2pipeline

AA2medicalA2gasA2masterA2orA2areaA2alarmA2panelA2shallA2beA2setA2toA2actuateA2a(an)A2__
___A2indicatorA2whenA2theA2communicationA2withA2anA2alarm-
initiatingA2deviceA2isA2disconnected.A2-A2Ans--AudibleA2andA2visual

WhenA2anA2EOSCA2becomesA2theA2temporaryA2supplyA2source,A2aA2facilityA2willA2monitorA
2theA2systemA2byA2useA2ofA2whichA2ofA2theA2following?A2-A2Ans--
ProvidingA2fourA2connectionA2pointsA2toA2bothA2masterA2alarms

WhichA2ofA2theA2followingA2conditionsA2mustA2beA2metA2whereA2medicalA2gasA2andA2vacu
umA2systemsA2areA2installedA2byA2non-certifiedA2personnel?A2-A2Ans--
installationA2byA2anyoneA2otherA2thanA26010A2certifiedA2personnelA2isA2NOTA2permitted

WhichA2ofA2theA2followingA2systemsA2shallA2NOTA2beA2permittedA2toA2beA2locatedA2inA2anA
2outdoorA2enclosure?A2-A2Ans--MedicalA2airA2compressorA2supplyA2sources

,MetallicA2flexibleA2jointsA2areA2beingA2usedA2inA2theA2pipelineA2forA2vibrationA2control.A2Wh
ichA2ofA2theA2followingA2isA2NOTA2requiredA2ofA2suchA2joints?A2-A2Ans--
suitableA2forA2serviceA2atA2150A2psigA2orA2above

whoA2shallA2witnessA2theA2installer-performedA2standingA2vacuumA2test?A2-A2Ans--
theA2authorityA2havingA2jurisdiction,A2orA2itsA2designee

theA2medicalA2airA2compressorA2intakeA2shallA2beA2locatedA2aA2minimumA2ofA2howA2manyA
2feetA2fromA2anyA2exhaustA2orA2plumbingA2vents?A2-A2Ans--25A2feet


theA2gasA2producedA2byA2evaporationA2fromA2theA2secondaryA2headerA2inA2aA2cryogenicA2l
iquidA2cylinderA2systemA2shallA2enterA2theA2supplyA2systemA2________A2ofA2theA2finalA2lin
eA2regulator.A2-A2Ans--upstream

withA2theA2approvalA2ofA2theA2AuthorityA2HavingA2Jurisdiction,A2inA2whichA2areasA2shallA2th
eA2zoneA2valvesA2beA2permittedA2toA2beA2securedA2toA2preventA2inappropriateA2access?A2-
A2Ans--pediatric


factoryA2installedA2inletA2tubesA2onA2stationA2outletsA2shallA2beA2NOTA2lessA2thanA2______
____withA20.3A2inchA2minimumA2insideA2diameter.A2-A2Ans--NPSA21/4,A23/8A2in.A2O.D.

whichA2ofA2theseA2operationsA2wouldA2notA2breachA2theA2vacuumA2system?A2-A2Ans--
testingA2aA2systemA2componentA2withA2aA2leakA2detectorA2solution

exceptA2forA2valvesA2inA2zoneA2valveA2boxes,A2allA2valvesA2shallA2beA2locatedA2inA2secure
dA2areasA2suchA2asA2lockedA2pipeA2chases,A2orA2beA2__________.A2-A2Ans--
latchedA2orA2lockedA2inA2operationA2position

medicalA2gasA2CentralA2SupplyA2systemsA2areA2NOTA2permittedA2toA2beA2locatedA2where
?A2-A2Ans--inA2anA2unlockedA2location

fittings,A2valves,A2andA2otherA2componentsA2forA2field-
installedA2positiveA2pressureA2distributionA2systemsA2shallA2beA2________A2untilA2prepare
dA2forA2installation.A2-A2Ans--deliveredA2sealed,A2labeled,A2andA2keptA2sealed

vacuumA2pipingA2forA2__________A2shallA2beA2connectedA2separatelyA2fromA2theA2medic
alA2surgicalA2systemA2directlyA2toA2theA2receiverA2tankA2throughA2itsA2ownA2isolationA2valv
eA2andA2fluidA2trapA2locatedA2atA2theA2receiver.A2-A2Ans--aA2teachingA2laboratory

NFPAA299A2specifiesA2thatA2theA2medicalA2gasA2pipingA2systemA2shallA2beA2protectedA2ag
ainstA2allA2EXCEPTA2whichA2ofA2theA2following?A2-A2Ans--exposureA2toA2liquids

categoryA21A2supportA2gassesA2carryA2whichA2ofA2theseA2additionalA2hazards?A2-A2Ans--
higherA2pressures

, manufacturedA2assembliesA2forA2medicalA2gasA2systemsA2employingA2flexibleA2hoseA2sha
llA2useA2flexibleA2connectorsA2withA2aA2minimumA2burstA2gaugeA2pressureA2ofA2howA2man
yA2psi?A2-A2Ans--1000

anA2assemblyA2ofA2equipmentA2thatA2holdsA2aA2capacityA2ofA2oxygenA2greaterA2thanA2___
_________A2isA2definedA2asA2aA2BulkA2OxygenA2SystemA2-A2Ans--20,000A2ft^3

whatA2doesA2itA2meanA2whenA2equipment,A2materialA2orA2servicesA2areA2showsA2asA2"liste
d"?A2-A2Ans--
theyA2areA2identifiedA2andA2publishedA2byA2anA2organizationA2thatA2isA2acceptableA2toA2the
A2authorityA2havingA2jurisdiction


underA2whichA2ofA2theseA2conditionsA2shallA2instrumentA2airA2reserveA2headerA2cylindersA2
beA2permittedA2toA2beA2storedA2withA2theA2instrumentA2airA2compressor?A2-A2Ans--
theA2onlyA2motor-
drivenA2machineryA2inA2theA2roomsA2isA2forA2theA2instrumentA2airA2equipment.

whichA2typeA2ofA2copperA2tubeA2hangersA2shallA2beA2usedA2inA2aA2potentiallyA2dampA2locat
ion?A2-A2Ans--plasticA2coated

stainlessA2tubesA2mayA2beA2joinedA2byA2anyA2methodsA2EXCEPTA2whichA2ofA2theA2followi
ng?A2-A2Ans--Braze

gasA2storageA2forA2CentralA2SupplyA2SystemsA2requiredA2specializedA2knowledgeA2andA2c
onsiderationA2ofA2informationA2inA2theA2NFPAA255A2forA2locating,A2installingA2andA2inspecti
onA2ofA2whichA2ofA2theA2following?A2-A2Ans--BulkA2Gas

allA2pressureA2reliefA2valvesA2shallA2beA2madeA2ofA2______A2brass,A2orA2bronze.A2-A2Ans--
stainlessA2steel

theA2reserveA2headerA2inA2aA2cryogenicA2liquidA2cylinderA2manifoldA2systemA2shallA2haveA2
sufficientA2cylinderA2connectionsA2forA2oneA2averageA2day'sA2supply,A2butA2NOTA2fewerA2t
hanA2howA2manyA2connections?A2-A2Ans--3

allA2fittingsA2forA2medicalA2gasA2workA2shallA2beA2keptA2separateA2fromA2otherA2toolsA2andA
2keptA2freeA2ofA2greaseA2orA2oil.A2IfA2cleaned,A2onlyA2aA2degreaserA2suchA2asA2_________
_A2isA2permitted.A2-A2Ans--
trisodiumA2phosphateA2orA2sodiumA2carbonateA2withA2potableA2water

stationA2outlets/
inletsA2shallA2beA2identifiedA2asA2toA2theA2________A2forA2theA2specificA2gasA2orA2vacuumA
2provided.A2-A2Ans--nameA2orA2chemicalA2symbol


whenA2brazing,A2jointsA2shallA2beA2continuouslyA2purgesA2withA2oil-
free,A2dryA2nitrogenA2NFA2toA2preventA2theA2formationA2ofA2__________A2onA2theA2insideA2
surfacesA2ofA2theA2joint.A2-A2Ans--copperA2oxide