CLASS 5 BOILER TEST EXAM
QUESTIONS AND ANSWERS
branchOconnectionsOtoOpipingOsystemsO"madeOinOtheOfield"OandOareOofOweldedOassemblyObeingOof
OpipeOtoOpipeOrequireOwhatOconsiderations...O-OCORRECTOANSWERS-
isOtheOangleOofOinsertionOwhatOtheOcodeOallows
O doesOtheOconnectionOrequireOreinforcement
O didOtheOengineerOapproveOit
B31.1O-OCORRECTOANSWERS-PowerOPipingO-OHighOPressureOSteamO-OoverO15Opsi
B31.9O-OCORRECTOANSWERS-BuildingOServicesO-OLowOPressureOSteamO-OunderO15Opsi
B31.5O-OCORRECTOANSWERS-RefrigerationOCode
B31.3O-OCORRECTOANSWERS-NormalOFluidOSystemsO-OCatagoryOMO-Oco-
axOsleeves/permitOrequired
DCENO-OCORRECTOANSWERS-DirectOCurrentOElectrodeONegativeO(TIG)
DCEPO-OCORRECTOANSWERS-DirectOCurrentOElectrodeOPositiveO(Stick)
FormulaOforOcircumferenceO-OCORRECTOANSWERS-piOxOdiameter
AOfrictionOlighterOisOaOstrikerO-OCORRECTOANSWERS-True
WhatOtypeOofOfittingOisOinstalledOatOeveryOrightOangle?O-OCORRECTOANSWERS-Crosses
,TheOincludedOangleOofOaOcenterOpunchOis:O-OCORRECTOANSWERS-60Odegrees
exampleOofO"PlaceOofOPublicOAssembly"O-OCORRECTOANSWERS-CollegeOcampus
WhatOisOtheOminimumOsizeOpipeOallowedOonOaOcontrolOloopOofOaOsteamOboiler?O-
OCORRECTOANSWERS-1"
InspectionOofOCatagoryOMOpipingOisOnotOrequiredObyOaOstateOinspector,OifOtheOauthorizedOownerOr
epresentativeOperformsOtheOinspection...O-OCORRECTOANSWERS-True
TheOChiefOInspectorOmayOenterOallObuildingsOatOreasonableOhoursOforOinspections,Oexcept:O-
OCORRECTOANSWERS-PrivateOResidences
WhenOthereOareOtwoOblowOdownOvalvesOtheyOwillObeOwhichOtype?O-OCORRECTOANSWERS-
OneOquickOopeningOandOoneOslowOopening
WhichOofOtheOfollowingOisOanOexampleOofOvesselsOexemptOfromOannualOinspection?O-
OCORRECTOANSWERS-vesselsOinOstorageO-OthoseOofOaOfederalOagencyO-
OHydronicOinOaOprivateOresidence
TheOplaceOonOanOisometricOdrawingOwhichOshowsOtheOcomponentsObeingOusedOisOcalled:O-
OCORRECTOANSWERS-BillOofOMaterial
BrazingOisOcoveredOunderOASMEOsectionO-OCORRECTOANSWERS-IXO(nine)
WhenOcuttingOpipeOwithOheatOnumber,OtransferOtheOnumber....O-OCORRECTOANSWERS-
BEFOREOcutting
,TheOletterO"F",OinOA53FOpipeOstandsOfor:O-OCORRECTOANSWERS-FurnaceOWelded
RepairOpermitsOareOissuedOtoOthe:O-OCORRECTOANSWERS-LicensedOcontractorOdoingOtheOwork
AddingOaOpipeObranchObyOmeansOofOweldingOisOallowedOif...O-OCORRECTOANSWERS-
TheOneedOforOreinforcementsOhasObeenOcalculated
UnderOB31.5,OpipeOlargerOthanOwhatOsizeOisOcovered?O-OCORRECTOANSWERS-2"
WhenOweldingOstainlessOsteel,OwhatOareOtheOpotentiallyOdangerousOoxidesOthatOareOproduced?O-
OCORRECTOANSWERS-NickelOandOChromium
WhatOextinguishingOagentOisOusedOinOClassOAOfires?O-OCORRECTOANSWERS-Water
MedicalOsterilizedOsmallerOthanO______cu.Oft.OareOexempt?O-OCORRECTOANSWERS-1O1/2Ocu.Oft.
ThereOisOaO$1,000OfineOforOanyoneOworking,OwithoutOaOlicense,OonOpressureOpiping.O-
OCORRECTOANSWERS-True
PoolOboilersOareOexemptOif......O-OCORRECTOANSWERS-
theOburnerOisOwiredOinOseriesOwithOtheOpump
WhatOclassOofOfireOisOburningOmagnesium?O-OCORRECTOANSWERS-ClassOD
RefrigerantOorOa/cOunitsOcontainingO_____Ocu.Oft.OorOlessOofOnon-corrosiveOgasesOareOexempt.O-
OCORRECTOANSWERS-3
, PressureOreliefOdevicesOmustObeOapprovedObyOwhatOagency?O-OCORRECTOANSWERS-
ASMEO(AmericanOSocietyOofOMechanicalOEngineers)
WhenOhydroOtestingONBEPO(Non-
BoilerOExternalOPiping),OitOmustObeOoffOfromOtheOboilerOandOtestedOatOhowOmanyOtimesOtheOopera
tingOpressure?O-OCORRECTOANSWERS-1O1/2
WhenOsecuringOwireOrope,OtheOclipsOareOapplied:O-OCORRECTOANSWERS-SaddleOonOliveOend
**AOstopOvalveOCANNOTObeOinstalledObtwnOtheOboilerOandOtheOreliefOvalve....O-
OCORRECTOANSWERS-TRUE
WhenOtheOweldOsymbolOisOonOtheOtopOofOtheOweldingOsymbolO(arrow),OitOmeansO...O-
OCORRECTOANSWERS-WeldOonOtheOotherOsider
WhatOtypeOofOstuffingOboxOisOusedOonOhighOpressure/temp.Ovalve?O-OCORRECTOANSWERS-
LanternOtypeOrigging
IfOyouOholdOaOClassOIVOorOClassOVOlicense,OyouOareOallowedOtoOsuperviseO....O-OCORRECTOANSWERS-
classOVI
UnderOB31.5,OA1OandOB1OrefrigerantOisOclassifiedObyOitsOtoxicityOandOflammability.O-
OCORRECTOANSWERS-True
HowOmanyOautomaticOlow-
waterOfuelOcutoffOdevicesOshallOthereObeOonOeachOautomaticallyOfiredOhigh-
pressureOsteamOboilers?O-OCORRECTOANSWERS-Two
WhichOcodeOsectionOcoversOPowerOPiping?O-OCORRECTOANSWERS-B31.1
QUESTIONS AND ANSWERS
branchOconnectionsOtoOpipingOsystemsO"madeOinOtheOfield"OandOareOofOweldedOassemblyObeingOof
OpipeOtoOpipeOrequireOwhatOconsiderations...O-OCORRECTOANSWERS-
isOtheOangleOofOinsertionOwhatOtheOcodeOallows
O doesOtheOconnectionOrequireOreinforcement
O didOtheOengineerOapproveOit
B31.1O-OCORRECTOANSWERS-PowerOPipingO-OHighOPressureOSteamO-OoverO15Opsi
B31.9O-OCORRECTOANSWERS-BuildingOServicesO-OLowOPressureOSteamO-OunderO15Opsi
B31.5O-OCORRECTOANSWERS-RefrigerationOCode
B31.3O-OCORRECTOANSWERS-NormalOFluidOSystemsO-OCatagoryOMO-Oco-
axOsleeves/permitOrequired
DCENO-OCORRECTOANSWERS-DirectOCurrentOElectrodeONegativeO(TIG)
DCEPO-OCORRECTOANSWERS-DirectOCurrentOElectrodeOPositiveO(Stick)
FormulaOforOcircumferenceO-OCORRECTOANSWERS-piOxOdiameter
AOfrictionOlighterOisOaOstrikerO-OCORRECTOANSWERS-True
WhatOtypeOofOfittingOisOinstalledOatOeveryOrightOangle?O-OCORRECTOANSWERS-Crosses
,TheOincludedOangleOofOaOcenterOpunchOis:O-OCORRECTOANSWERS-60Odegrees
exampleOofO"PlaceOofOPublicOAssembly"O-OCORRECTOANSWERS-CollegeOcampus
WhatOisOtheOminimumOsizeOpipeOallowedOonOaOcontrolOloopOofOaOsteamOboiler?O-
OCORRECTOANSWERS-1"
InspectionOofOCatagoryOMOpipingOisOnotOrequiredObyOaOstateOinspector,OifOtheOauthorizedOownerOr
epresentativeOperformsOtheOinspection...O-OCORRECTOANSWERS-True
TheOChiefOInspectorOmayOenterOallObuildingsOatOreasonableOhoursOforOinspections,Oexcept:O-
OCORRECTOANSWERS-PrivateOResidences
WhenOthereOareOtwoOblowOdownOvalvesOtheyOwillObeOwhichOtype?O-OCORRECTOANSWERS-
OneOquickOopeningOandOoneOslowOopening
WhichOofOtheOfollowingOisOanOexampleOofOvesselsOexemptOfromOannualOinspection?O-
OCORRECTOANSWERS-vesselsOinOstorageO-OthoseOofOaOfederalOagencyO-
OHydronicOinOaOprivateOresidence
TheOplaceOonOanOisometricOdrawingOwhichOshowsOtheOcomponentsObeingOusedOisOcalled:O-
OCORRECTOANSWERS-BillOofOMaterial
BrazingOisOcoveredOunderOASMEOsectionO-OCORRECTOANSWERS-IXO(nine)
WhenOcuttingOpipeOwithOheatOnumber,OtransferOtheOnumber....O-OCORRECTOANSWERS-
BEFOREOcutting
,TheOletterO"F",OinOA53FOpipeOstandsOfor:O-OCORRECTOANSWERS-FurnaceOWelded
RepairOpermitsOareOissuedOtoOthe:O-OCORRECTOANSWERS-LicensedOcontractorOdoingOtheOwork
AddingOaOpipeObranchObyOmeansOofOweldingOisOallowedOif...O-OCORRECTOANSWERS-
TheOneedOforOreinforcementsOhasObeenOcalculated
UnderOB31.5,OpipeOlargerOthanOwhatOsizeOisOcovered?O-OCORRECTOANSWERS-2"
WhenOweldingOstainlessOsteel,OwhatOareOtheOpotentiallyOdangerousOoxidesOthatOareOproduced?O-
OCORRECTOANSWERS-NickelOandOChromium
WhatOextinguishingOagentOisOusedOinOClassOAOfires?O-OCORRECTOANSWERS-Water
MedicalOsterilizedOsmallerOthanO______cu.Oft.OareOexempt?O-OCORRECTOANSWERS-1O1/2Ocu.Oft.
ThereOisOaO$1,000OfineOforOanyoneOworking,OwithoutOaOlicense,OonOpressureOpiping.O-
OCORRECTOANSWERS-True
PoolOboilersOareOexemptOif......O-OCORRECTOANSWERS-
theOburnerOisOwiredOinOseriesOwithOtheOpump
WhatOclassOofOfireOisOburningOmagnesium?O-OCORRECTOANSWERS-ClassOD
RefrigerantOorOa/cOunitsOcontainingO_____Ocu.Oft.OorOlessOofOnon-corrosiveOgasesOareOexempt.O-
OCORRECTOANSWERS-3
, PressureOreliefOdevicesOmustObeOapprovedObyOwhatOagency?O-OCORRECTOANSWERS-
ASMEO(AmericanOSocietyOofOMechanicalOEngineers)
WhenOhydroOtestingONBEPO(Non-
BoilerOExternalOPiping),OitOmustObeOoffOfromOtheOboilerOandOtestedOatOhowOmanyOtimesOtheOopera
tingOpressure?O-OCORRECTOANSWERS-1O1/2
WhenOsecuringOwireOrope,OtheOclipsOareOapplied:O-OCORRECTOANSWERS-SaddleOonOliveOend
**AOstopOvalveOCANNOTObeOinstalledObtwnOtheOboilerOandOtheOreliefOvalve....O-
OCORRECTOANSWERS-TRUE
WhenOtheOweldOsymbolOisOonOtheOtopOofOtheOweldingOsymbolO(arrow),OitOmeansO...O-
OCORRECTOANSWERS-WeldOonOtheOotherOsider
WhatOtypeOofOstuffingOboxOisOusedOonOhighOpressure/temp.Ovalve?O-OCORRECTOANSWERS-
LanternOtypeOrigging
IfOyouOholdOaOClassOIVOorOClassOVOlicense,OyouOareOallowedOtoOsuperviseO....O-OCORRECTOANSWERS-
classOVI
UnderOB31.5,OA1OandOB1OrefrigerantOisOclassifiedObyOitsOtoxicityOandOflammability.O-
OCORRECTOANSWERS-True
HowOmanyOautomaticOlow-
waterOfuelOcutoffOdevicesOshallOthereObeOonOeachOautomaticallyOfiredOhigh-
pressureOsteamOboilers?O-OCORRECTOANSWERS-Two
WhichOcodeOsectionOcoversOPowerOPiping?O-OCORRECTOANSWERS-B31.1
