PLUMBING LEVEL 1 QUESTIONS WITH
VERIFIED ANSWERS
The nnpipe nnfrom nnthe nnwater nnmain, nnwater nnmeter, nnwater nnsupply nnsystem nnor
nnother nnapproved nnsource nnof nnwater nnsupply,to nnthe nnbuilding nnor nnstructure nn-
nnCorrect nnAnswer nn- nnWater nnservice nnpipe
Any nnpipe nnor nnfitting nnwhich nnmakes nnangle nnof nnmore nnthan nn45° nnwith nnthe
nnvertical nn- nnCorrect nnAnswer nn- nnHorizontal nnpipe
The nnlength nnof nna nnpipe nnalong nnthe nncenterline nnof nnthe nnpipe nnand nnfittings nn-
nnCorrect nnAnswer nn- nnDeveloped nnlength
For nnapplicability nnrequirements nnof nnthe nnplumbing nncode, nnrefer nnto: nn- nnCorrect
nnAnswer nn- nnThe nnplumbing nncode nn102.1
The nnprovisions nnof nnthe nnplumbing nnshall nnapply nnto: nn- nnCorrect nnAnswer nn-
nnInstallations, nnalterations nnand nnrepairs, nnreplacements nn- nn101.2
The nnprovisions nnof nnthe nnplumbing nncode nnshall nnNOT nnapply nnto... nn- nnCorrect
nnAnswer nn- nnGas nnfired nnwater nnheater, nnwater nnheater nnventing nnsystems, nnfuel
nngas nnpiping
What nnis nnthe nnminimum nnsize nnof nna nnbuilding nnsewer? nn- nnCorrect nnAnswer nn- nn4
nninches nnT710.1 nn(1) nnb
Minimum nnfall nnshall nnnot nnbe nnless nnthan nn_____ nnper nnfoot nnfor nna nn2 nninch nnpipe
nnor nn_________ nnper nnfoot nnfor nna nn4 nninch nnpipe. nn- nnCorrect nnAnswer nn-
nn1/4":1/8". nnT704.1
A nnpipe nnor nna nnfitting nnwhich nnmakes nnan nnangle nnof nnnot nnmore nnthan nn45° nnwith
nnthe nnvertical nnis nnconsidered nn- nnCorrect nnAnswer nn- nnVertical nnpipe. nn202-
nndefinitions
Cleanouts nnin nn4 nninch nnbuilding nnsewer nnshall nnnot nnbe nnlocated nnmore nnthan
nn____ft. nnapart nn- nnCorrect nnAnswer nn- nn100 nnft. nn708.3 nn.2
Size nnof nncleanouts nnfor nna nn4 nninch nnpipe nnor nnlarger nnmay nnbe nnserved nnby nna
nn_______inch nnclean nnout nn- nnCorrect nnAnswer nn- nn4". nn708.7
Size nnof nncleanouts nnfor nnless nnthan nna nn4 nninch nnpipe nn---- nn4 nninch, nn2 nninch,
nnsize nnof nnpipe nnor nn3 nninch? nn- nnCorrect nnAnswer nn- nnSize nnof nnpipe nn708.7
, Waste nnand nnsoil nnpipe nnleaving nna nnbuilding nnshall nnhave nnan nnearth nncover
nn______ nninches nn- nnCorrect nnAnswer nn- nn3 nninches. nn305.6.1
A nnmanhole nncover nnin nna nnflood nnhazard nnzone nn(a nnzone) nnshall nnbe nnsealed
nnunless nn- nnCorrect nnAnswer nn- nnThe nnmanhole nnis nnelevated nnabove nnbase nnflood
nnelevation nn309.2#6
Temporary nntoilet nnfacilities nnneed nnnot nnbe nnon nnsite nnfor nncrews nnon nna nnjob nnsite
nnfor nnno nnmore nnthen nnwhich nnof nnthe nnfollowing? nn- nnCorrect nnAnswer nn- nnOne
nnday nn311.1
Strainer nnplates nnon nndrain nninlet nnshall nnbe nndesigned nnwith nnopenings nnnot
nngreater nnthan nn____ nn- nnCorrect nnAnswer nn- nn.5 nn" nn304.2
What nnis nnthe nnsize nnof nna nnsleeve nnpassing nnthrough nna nnwall nnto nnprotect nnpiping?
nn- nnCorrect nnAnswer nn- nnTwo nnpipe nndiameters nngreater nnthan nnthe nnpipe nn305.5
All nnplastic nnpipe, nnfittings nnand nncomponent nnshall nnbe nnthird-party nncertified nnas
nnconforming nnto nnwhich nnof nnthe nnfollowing? nn- nnCorrect nnAnswer nn- nnNSF nn14.
nn303.3
All nnopenings nnaround nnpipes, nntubing, nnwiring, nnconduit, nnEtc. nnShall nnbe nnfire
nnstopped nnaccording nnto nnwhich nnof nnthe nnfollowing? nn- nnCorrect nnAnswer nn- nnThe
nnbuilding nncode nn307.3
The nntop nnof nnwater nnpipes, nninstalled nnbelow nngrade nnoutside nnthe nnbuilding, nnshall
nnbe: nn- nnCorrect nnAnswer nn- nnBelow nnthe nnfrost nnline nnor nnminimum nnof nn12 nninches
nnbelow nnfinished nngrade nnwhich nnever nnis nngreater nn305.6
Water nnpiping nninstalled nnin nnan nnunconditioned nnarea nnshall nnbe nninsulated nnwith nna
nnminimum nnR nnfactor nnof: nn- nnCorrect nnAnswer nn- nn6.50 nn305.6
Trenches nninstalled nnparallel nnto nnfootings nnshall nnnot nnextend nnbelow nnthe nnbearing
nnthe nnplane nnof nnthe nnfooting: nn- nnCorrect nnAnswer nn- nn45° nn307.5
Exterior nnwall nnopenings nnshall nnbe nnmade nnwhich nnof nnthe nnfollowing? nn- nnCorrect
nnAnswer nn- nnWatertight. nn305.7
Notches nnat nnthe nnend nnof nnjoists nnshall nnnot nnexceed: nn- nnCorrect nnAnswer nn- nn1/4
nnof nnthe nndepth. nn307.2, nnF101.1
The nnedge nnof nna nnbored nnhole nnin nna nnstud nnshall nnbe nnno nncloser nnto nnthe nnedge
nnthan: nn- nnCorrect nnAnswer nn- nn5/8" nn307.2, nnF101.3
VERIFIED ANSWERS
The nnpipe nnfrom nnthe nnwater nnmain, nnwater nnmeter, nnwater nnsupply nnsystem nnor
nnother nnapproved nnsource nnof nnwater nnsupply,to nnthe nnbuilding nnor nnstructure nn-
nnCorrect nnAnswer nn- nnWater nnservice nnpipe
Any nnpipe nnor nnfitting nnwhich nnmakes nnangle nnof nnmore nnthan nn45° nnwith nnthe
nnvertical nn- nnCorrect nnAnswer nn- nnHorizontal nnpipe
The nnlength nnof nna nnpipe nnalong nnthe nncenterline nnof nnthe nnpipe nnand nnfittings nn-
nnCorrect nnAnswer nn- nnDeveloped nnlength
For nnapplicability nnrequirements nnof nnthe nnplumbing nncode, nnrefer nnto: nn- nnCorrect
nnAnswer nn- nnThe nnplumbing nncode nn102.1
The nnprovisions nnof nnthe nnplumbing nnshall nnapply nnto: nn- nnCorrect nnAnswer nn-
nnInstallations, nnalterations nnand nnrepairs, nnreplacements nn- nn101.2
The nnprovisions nnof nnthe nnplumbing nncode nnshall nnNOT nnapply nnto... nn- nnCorrect
nnAnswer nn- nnGas nnfired nnwater nnheater, nnwater nnheater nnventing nnsystems, nnfuel
nngas nnpiping
What nnis nnthe nnminimum nnsize nnof nna nnbuilding nnsewer? nn- nnCorrect nnAnswer nn- nn4
nninches nnT710.1 nn(1) nnb
Minimum nnfall nnshall nnnot nnbe nnless nnthan nn_____ nnper nnfoot nnfor nna nn2 nninch nnpipe
nnor nn_________ nnper nnfoot nnfor nna nn4 nninch nnpipe. nn- nnCorrect nnAnswer nn-
nn1/4":1/8". nnT704.1
A nnpipe nnor nna nnfitting nnwhich nnmakes nnan nnangle nnof nnnot nnmore nnthan nn45° nnwith
nnthe nnvertical nnis nnconsidered nn- nnCorrect nnAnswer nn- nnVertical nnpipe. nn202-
nndefinitions
Cleanouts nnin nn4 nninch nnbuilding nnsewer nnshall nnnot nnbe nnlocated nnmore nnthan
nn____ft. nnapart nn- nnCorrect nnAnswer nn- nn100 nnft. nn708.3 nn.2
Size nnof nncleanouts nnfor nna nn4 nninch nnpipe nnor nnlarger nnmay nnbe nnserved nnby nna
nn_______inch nnclean nnout nn- nnCorrect nnAnswer nn- nn4". nn708.7
Size nnof nncleanouts nnfor nnless nnthan nna nn4 nninch nnpipe nn---- nn4 nninch, nn2 nninch,
nnsize nnof nnpipe nnor nn3 nninch? nn- nnCorrect nnAnswer nn- nnSize nnof nnpipe nn708.7
, Waste nnand nnsoil nnpipe nnleaving nna nnbuilding nnshall nnhave nnan nnearth nncover
nn______ nninches nn- nnCorrect nnAnswer nn- nn3 nninches. nn305.6.1
A nnmanhole nncover nnin nna nnflood nnhazard nnzone nn(a nnzone) nnshall nnbe nnsealed
nnunless nn- nnCorrect nnAnswer nn- nnThe nnmanhole nnis nnelevated nnabove nnbase nnflood
nnelevation nn309.2#6
Temporary nntoilet nnfacilities nnneed nnnot nnbe nnon nnsite nnfor nncrews nnon nna nnjob nnsite
nnfor nnno nnmore nnthen nnwhich nnof nnthe nnfollowing? nn- nnCorrect nnAnswer nn- nnOne
nnday nn311.1
Strainer nnplates nnon nndrain nninlet nnshall nnbe nndesigned nnwith nnopenings nnnot
nngreater nnthan nn____ nn- nnCorrect nnAnswer nn- nn.5 nn" nn304.2
What nnis nnthe nnsize nnof nna nnsleeve nnpassing nnthrough nna nnwall nnto nnprotect nnpiping?
nn- nnCorrect nnAnswer nn- nnTwo nnpipe nndiameters nngreater nnthan nnthe nnpipe nn305.5
All nnplastic nnpipe, nnfittings nnand nncomponent nnshall nnbe nnthird-party nncertified nnas
nnconforming nnto nnwhich nnof nnthe nnfollowing? nn- nnCorrect nnAnswer nn- nnNSF nn14.
nn303.3
All nnopenings nnaround nnpipes, nntubing, nnwiring, nnconduit, nnEtc. nnShall nnbe nnfire
nnstopped nnaccording nnto nnwhich nnof nnthe nnfollowing? nn- nnCorrect nnAnswer nn- nnThe
nnbuilding nncode nn307.3
The nntop nnof nnwater nnpipes, nninstalled nnbelow nngrade nnoutside nnthe nnbuilding, nnshall
nnbe: nn- nnCorrect nnAnswer nn- nnBelow nnthe nnfrost nnline nnor nnminimum nnof nn12 nninches
nnbelow nnfinished nngrade nnwhich nnever nnis nngreater nn305.6
Water nnpiping nninstalled nnin nnan nnunconditioned nnarea nnshall nnbe nninsulated nnwith nna
nnminimum nnR nnfactor nnof: nn- nnCorrect nnAnswer nn- nn6.50 nn305.6
Trenches nninstalled nnparallel nnto nnfootings nnshall nnnot nnextend nnbelow nnthe nnbearing
nnthe nnplane nnof nnthe nnfooting: nn- nnCorrect nnAnswer nn- nn45° nn307.5
Exterior nnwall nnopenings nnshall nnbe nnmade nnwhich nnof nnthe nnfollowing? nn- nnCorrect
nnAnswer nn- nnWatertight. nn305.7
Notches nnat nnthe nnend nnof nnjoists nnshall nnnot nnexceed: nn- nnCorrect nnAnswer nn- nn1/4
nnof nnthe nndepth. nn307.2, nnF101.1
The nnedge nnof nna nnbored nnhole nnin nna nnstud nnshall nnbe nnno nncloser nnto nnthe nnedge
nnthan: nn- nnCorrect nnAnswer nn- nn5/8" nn307.2, nnF101.3
