CSLB Class B General Contractor's License - Building's Exam: General Building Updates I Questions and Answers 2025/2026

CSLB Class B General Contractor's License -
Building's Exam: General Building Updates I
Questions and Answers 2025/2026
B)A6AonAedgeA12AonAcenterA-ACORRECTAANSWERSA-
WhatAfastenerAspacingAisArequiredAforAtheAcornersAofAorientedAstrandAboardA(OSB)?

A)A6AonAedgeAorA8AonAcenter
B)A6AonAedgeA12AonAcenter
C)A8AonAedgeA12AonAcenter
D)A8AonAedgeA16AonAcenter
B)AYes,AwithAaApatternAmatchA-ACORRECTAANSWERSA-
CanAlinoleumAbeArepairedAorApatched?

A)ANever
B)AYes,AwithAaApatternAmatch
C)AYes,AjustAcutAsmallApatchAtoAfit
D)ANo,AbecauseAit'sAnotArepairable
A-ACORRECTAANSWERSA-

WhatAisAtheAbestAtoolAusedAtoAcutAaA2AfootAdiameterAholeAinAplywood?

A)AJigsaw
B)AKeyholeAsaw
C)AMasonAsaw
D)AHacksaw
A)AContractorAcarryingAasbestosAcertificationA-ACORRECTAANSWERSA-
WhoAmayAworkAwithAasbestos?

A)AContractorAcarryingAasbestosAcertification
B)AGeneralAcontractor
C)AGeneralAEngineer
D)ASubcontractor
D)A6"x6"AwithAaAjointAsizeAbetweenA1/8"AandA1/4"

TheAsizeAofAtheAtileAisAnotAasAimportantAasAtheAjointAsize.ASandedAgroutsAareAtypicallyAused
AforAgroutAjointsAthatAareAwiderAthanA1/8".A-ACORRECTAANSWERSA-

WhatAtileAisAbetterAwithAsandedAgrout?

A)A4"x4"AwithAaAjointAsizeAbetweenA3/32"AandA1/16"
B)A4"x4"AwithAaAjointAsizeAbetweenA1/16"AandA5/8"
C)A6"x6"AwithAaAjointAsizeAbetweenA1/16"AandA1/8"
D)A6"x6"AwithAaAjointAsizeAbetweenA1/8"AandA1/4"

, D)AGlueAdown

HardwoodAshouldAneverAbeAnailedAdirectlyAtoAconcrete.AStandardAstripAhardwoodAisAinstall
edAbyAblindAnailingAtoAwoodAsubfloorsAorAsleepersAthatAareAsetAoverAmastic.AIfAusingAsleep
ersAdon'tAforgetAtoAplaceAaApolyethyleneAsheetAoverAtheAsleeperAplanks.AIfAinstallingAtongu
e-and-grooveAhardwoodAplanksAoverAconcrete,AyouAmayAuseAmasticA(paste-
likeAadhesive).AThisAisAknownAasAtheAglueAdownAmethod.A-ACORRECTAANSWERSA-
IfAyouAhaveAconcreteAsubfloor,AhowAwouldAyouAinstallAhardwoodAonAtop?

A)ANailAitAbutAonlyAifAthereAisAaAvaporAbarrierAunderAtheAslab
B)ANailAitAbutAonlyAifAtheAhardwoodAisAheavyAenoughAtoAavoidAwarping
C)ANailAitAalongAwithAaAwater-basedAmembrane
D)AGlueAdown
10dA-ACORRECTAANSWERSA-
WhenAconnectingAaArafterAwithAcollarAties,AwhatAnailsAareAused?
34"

AccordingAtoAtheACaliforniaABuildingACode,AlavatoriesAandAsinksAshallAbeAinstalledAwithAthe
AfrontAofAtheAhigherAofAtheArimAorAcounterAsurfaceA34AinchesA(864Amm)AmaximumAaboveAth

eAfinishedAfloor.AInAresidentialAdwellingsAunitAkitchens,AsinksAthatAareAadjustableAtoAvariabl
eAheights,A29AinchesA(737Amm)AminimumAandA36AinchesA(914Amm)Amaximum,AshallAbeApe
rmittedAwhereArough-
inAplumbingApermitsAconnectionsAofAsupplyAandAdrainApipesAforAsinksAmountedAatAtheAheig
htAofA29AinchesA(737Amm).A-ACORRECTAANSWERSA-
WhatAisAtheAmaximumAheightAofAanAaccessibleAsinkAinAaAcommercialAbuilding?
C)ASix-footAlevelA-ACORRECTAANSWERSA-
OfAtheAfollowing,AtheAbestAtoolAforAdoorAjambAinstallationsAis:

A)AT-square
B)AEight-footAlevel
C)ASix-footAlevel
D)APlumb
CityA-ACORRECTAANSWERSA-WhoAgivesApermissionAtoAinstallAaAsepticAsystem?
1A3/4"A-ACORRECTAANSWERSA-
HowAmuchAspacingAisArequiredAforAanchorAboltsAfromAtheAedgeAofAaAstemAwall?
A)APlaceAinAtheAroomAwhereAitAwillAbeAinstalled,AandAletAacclimateA-
ACORRECTAANSWERSA-

WhenAflooringA(wood,Alaminate,Aetc.)AisAdeliveredAtoAtheAjob,AhowAdoesAtheAcontractorApro
ceed?

A)APlaceAinAtheAroomAwhereAitAwillAbeAinstalled,AandAletAacclimate
B)AStartAinstallationAimmediately
C)APutAallAtheAlaminateAinAoneAplaceAandAletAacclimate
D)AWaitAaAfewAhoursAandAstartAinstalling
B)AAllAwheelsAmustArotateA-ACORRECTAANSWERSA-
WhichAofAtheAfollowingAisAincorrectAaboutAmobileAscaffolds?