NCCER TEST QUESTIONS WITH CORRECT
ANSWERS 2025
HineVlist,VorVlineVtable,VselectVtheVpipingVspecificationsV-VCORRECTVANSWERV-
WhatVisVaVwraparound?V-VCORRECTVANSWERV-aVtoolVtoVlayVaVstraightVlineVaroundVpipe
WhatVis.Vplum?V-VCORRECTVANSWERV-refersVtoVaVverticalValignmentVlevel,VrefersVtoVhorizontalValignment
WhatVareVpinsVusedVfor?V-VCORRECTVANSWERV-alignVboltVholesVwhenVconnectingVflanges
WhatVisVaVflangeVspreaderVusedVfor?V-VCORRECTVANSWERV-toVopenVflanges
WhatVdoesVNPTVmean?V-VCORRECTVANSWERV-NationalVPipeVThreads
FlareVjointsVisVrequiredVinVinstillationV-VCORRECTVANSWERV-
whenVaVhazardVexistVandVaVtorchVabrasiveVisn'tVpermitted
WhatVisVGFCIVusedVforV-VCORRECTVANSWERV-toVreduceVelectricalVhazard
WhatVisVaVnipple?V-VCORRECTVANSWERV-pieceVofVpipeVlessVthanV12Vinches
WhatVdoVyouVneverVdoVwithVaVlightedVtorch?V-VCORRECTVANSWERV-neverVlayVitVdown
HowVfarVshouldVgasVandVoxygenVcylinderVbeVseparated?V-VCORRECTVANSWERV-20Vfeet
WhatVisVaVstrikerVorVlighterVusedVfor?V-VCORRECTVANSWERV-usedVtoVigniteVtheVtorch
WhatVisVaVsoapstone?V-VCORRECTVANSWERV-commonVmaterialVusedVforVmarking
, MetalVmustVbeVpiercedV-VCORRECTVANSWERV-beforeVcut
NeverVstandVonVtopVstepVofVladderV-VCORRECTVANSWERV-usedV4VtoV1VruleVonVextensionVladder
HowVmanyVtimesVshouldVyouVoverlapVaVplank?V-VCORRECTVANSWERV-
atVleastV6VinchesVandVnoVmoreVthanV12Vinches
AllVpipingVshouldVbeVslopedVat?V-VCORRECTVANSWERV-1/8VinchVfootVbackVtoVtank
WhereVisVtheVtitleVblockVlocatedVonVaVdrawing?V-VCORRECTVANSWERV-overVrightVcorner
HineVlist,VorVlineVtableV-VCORRECTVANSWERV-
selectVtheVpipingVspecificationVthatVcanVbeVusedVwithVtheVsameVsystem
WhatVdoesVtheVplotVplanVshow?V-VCORRECTVANSWERV-
theVlocationVofVaVstructureVonVaVpieceVofVpropertyVwhereVcanVbeVbuild.VBatteryVlimits
WhatVisVtheVplanVview?V-VCORRECTVANSWERV-
itVisVaVviewVofVobjectsVorVareaVformVaboveVlookingVdownVonVtheVsystem
P&IDVareVschematicVdiagramsVofVaVcompleteVsystemV-VCORRECTVANSWERV-andVshowsVprocessVflow
ISOVincludesVaVbillVofVmaterialsV-VCORRECTVANSWERV-pipe,Vflanges,Vvalves,VboltsVandVgaskets
WhatVisVaVspool?V-VCORRECTVANSWERV-aVprefabricatedVsectionVofVaVpipe
ValvesVthatVareVusedVtoVstartVandVstopVflowerVcalled?V-VCORRECTVANSWERV-
gate,Vknife,Vball,VplugVandVthreeVwayVvalves
AVstrainerVisVusedVtoVkeepVforeignVmaterialsVoutVofVlineV-VCORRECTVANSWERV-
OnVtheVinletVsideVofVtheVfootVvalve
ANSWERS 2025
HineVlist,VorVlineVtable,VselectVtheVpipingVspecificationsV-VCORRECTVANSWERV-
WhatVisVaVwraparound?V-VCORRECTVANSWERV-aVtoolVtoVlayVaVstraightVlineVaroundVpipe
WhatVis.Vplum?V-VCORRECTVANSWERV-refersVtoVaVverticalValignmentVlevel,VrefersVtoVhorizontalValignment
WhatVareVpinsVusedVfor?V-VCORRECTVANSWERV-alignVboltVholesVwhenVconnectingVflanges
WhatVisVaVflangeVspreaderVusedVfor?V-VCORRECTVANSWERV-toVopenVflanges
WhatVdoesVNPTVmean?V-VCORRECTVANSWERV-NationalVPipeVThreads
FlareVjointsVisVrequiredVinVinstillationV-VCORRECTVANSWERV-
whenVaVhazardVexistVandVaVtorchVabrasiveVisn'tVpermitted
WhatVisVGFCIVusedVforV-VCORRECTVANSWERV-toVreduceVelectricalVhazard
WhatVisVaVnipple?V-VCORRECTVANSWERV-pieceVofVpipeVlessVthanV12Vinches
WhatVdoVyouVneverVdoVwithVaVlightedVtorch?V-VCORRECTVANSWERV-neverVlayVitVdown
HowVfarVshouldVgasVandVoxygenVcylinderVbeVseparated?V-VCORRECTVANSWERV-20Vfeet
WhatVisVaVstrikerVorVlighterVusedVfor?V-VCORRECTVANSWERV-usedVtoVigniteVtheVtorch
WhatVisVaVsoapstone?V-VCORRECTVANSWERV-commonVmaterialVusedVforVmarking
, MetalVmustVbeVpiercedV-VCORRECTVANSWERV-beforeVcut
NeverVstandVonVtopVstepVofVladderV-VCORRECTVANSWERV-usedV4VtoV1VruleVonVextensionVladder
HowVmanyVtimesVshouldVyouVoverlapVaVplank?V-VCORRECTVANSWERV-
atVleastV6VinchesVandVnoVmoreVthanV12Vinches
AllVpipingVshouldVbeVslopedVat?V-VCORRECTVANSWERV-1/8VinchVfootVbackVtoVtank
WhereVisVtheVtitleVblockVlocatedVonVaVdrawing?V-VCORRECTVANSWERV-overVrightVcorner
HineVlist,VorVlineVtableV-VCORRECTVANSWERV-
selectVtheVpipingVspecificationVthatVcanVbeVusedVwithVtheVsameVsystem
WhatVdoesVtheVplotVplanVshow?V-VCORRECTVANSWERV-
theVlocationVofVaVstructureVonVaVpieceVofVpropertyVwhereVcanVbeVbuild.VBatteryVlimits
WhatVisVtheVplanVview?V-VCORRECTVANSWERV-
itVisVaVviewVofVobjectsVorVareaVformVaboveVlookingVdownVonVtheVsystem
P&IDVareVschematicVdiagramsVofVaVcompleteVsystemV-VCORRECTVANSWERV-andVshowsVprocessVflow
ISOVincludesVaVbillVofVmaterialsV-VCORRECTVANSWERV-pipe,Vflanges,Vvalves,VboltsVandVgaskets
WhatVisVaVspool?V-VCORRECTVANSWERV-aVprefabricatedVsectionVofVaVpipe
ValvesVthatVareVusedVtoVstartVandVstopVflowerVcalled?V-VCORRECTVANSWERV-
gate,Vknife,Vball,VplugVandVthreeVwayVvalves
AVstrainerVisVusedVtoVkeepVforeignVmaterialsVoutVofVlineV-VCORRECTVANSWERV-
OnVtheVinletVsideVofVtheVfootVvalve