PLUMBING EXAM9(MASTER
PLUMBING )ACTUAL QUESTIONS
WITH CORRECT ANSWERS.
A bjourneyman bplumber band ban bapprentice, bwho bare bemployed bby ba bmaster
bplumber, bare binstalling bthe bDWV-system band bwater bdistribution bsystem bin ba b2-½
bstory bsingle bfamily bdwelling. bQUESTION: bWhat banswer bbelow bshall bbe bconsidered
bmost bcorrect bto bcomplete bthe bfollowing b"Plumbing bcode bknowledge" brelated
bstatement: bA btrap bthat bserves ba bsingle bshower bstall bthat bis bequipped bwith ba
bhand bshower, ba brain bhead, band ba bstandard bshower bhead bshall bbe bno bless bthan
b________ bin bminimum bdiameter
A) b1-½" bB) b2" bC) b2-½" bD) b3" b- bcorrect banswer✔✔2 binches
A bjourneyman bplumber band bapprentice bare binstalling b3-inch bfloor bdrains bin ban
bopen-parking-garage bthat bis bsubject bto bfreezing btemperatures. bQUESTION: bWhat
banswer bbelow bshall bbe bconsidered bmost bcorrect bto bcomplete bthe bfollowing
b"Plumbing bcode bknowledge" brelated bstatement: bThe binstallation bof btraps bat bthe
bfloor bdrain blocations bwhich bare bfound bsusceptible bto bfreezing btemperatures bmay
bbe b__________.
A)Increased bto b4-inch bB) bEliminated bC) bWrapped bwith bfreeze bprotection bcable bD)
bInsulated b- bcorrect banswer✔✔eliminated
A bjourneyman bplumber band bapprentice bare binstalling blab bsinks bwith bfaucets bthat
bare bconnected bto ban bacid bwaste bsystem bfor-(special bhazardous bwaste) bin ba
bmedical blab. bWhat banswer bbelow bshall bbe bconsidered bmost bcorrect bto bcomplete
bthe bfollowing b"Plumbing bcode bknowledge" brelated bstatement: bVacuum bbreakers
bshall bbe binstalled bwith bthe bcritical blevel bat bleast b_____-inches babove bthe bflood
blevel brim bof bthe bfixture bthey bserve band bon bthe bdischarge bside bof bthe blast bcontrol
bvalve bto bthe bfixture.
A) b12 bB) b6 bC) b18 bD) b3 b- bcorrect banswer✔✔6 binches
,What banswer bbelow bshall bbe bconsidered bmost bcorrect bto bcomplete bthe bfollowing
b"Plumbing bcode bknowledge" brelated bstatement: bNo bplumbing bpermit bshall bbe
bissued bfor bcross bconnection binstallations bthat brequire b______________ buntil bthe
bapplication bfor ba bpermit bis baccompanied bby ba bletter bof bapproval bfrom bthe
bMassachusetts bDepartment bof bEnvironmental bProtection bor bits bdesignee.
A) bRPBP bB) bA b"critical blevel" bheight bC) bAtmospheric bvacuum bbreakers bD) bWater
brecycling bsystems b- bcorrect banswer✔✔reduced bpressure bbackflow bpreventer
b(RPBP)
: bWhat banswer bbelow bshall bbe bconsidered bmost bcorrect bto bcomplete bthe bfollowing
b"Plumbing bcode bknowledge" brelated bstatement: bThe bwaste bdischarge bfrom bsafe
bwaste bpans bserving bwater bheaters bor bhot bwater bstorage btanks bwhere bthere bis
b_______ bbelow band bshall bbe bpiped bindirectly bto ba bproperly btrapped band bvented
bfixture.
A) bPeople bB) bOccupancy bC) bFloors bD) bPlumbing bconnections b- bcorrect
banswer✔✔occupancy
GIVEN: bA bjourneyman bplumber band ban bapprentice, b(who bare bemployed bby ba
bmaster bplumber), bare binstalling bthe bsanitary bDWV band bwater bdistribution bsystem
bin ba bfive-story bresidential bcondominium bcomplex. bQUESTION: bWhat banswer bbelow
bshall bbe bconsidered bmost bcorrect bto bcomplete bthe bfollowing b"Plumbing bcode
bknowledge" brelated bstatement: bCPVC-(Chlorinated bPolyvinyl bChloride) bpipe band
bfittings bmay bbe bused bprovided bthat bnone bof bthis bmaterial bis blocated bwithin b____-
inches bof bany bconnection bto ba bhot bwater btank bas bdefined bin bMGL. bc. b142, b§ b17
A) b12 bB) b18 bC) b20 bD) b24 bE) b30 b- bcorrect banswer✔✔24 binches
: bA bjourneyman bplumber band bapprentice bare broughing-in bmultiple bfixtures bin ba
bnew bfitness bcenter. bThe bfacility bwill binclude ba bjuice bbar, btemporary bdaycare broom,
bmen's band bwomen's btoilet bfacilities band bmen's band bwomen's blocker brooms.
bQUESTION: bWhat banswer bbelow bshall bbe bconsidered bmost bcorrect bto bcomplete
bthe bfollowing b"Plumbing bcode bknowledge" brelated bstatement: bA b________-vent bis
ba bbranch bvent bthat bserves btwo bor bmore bfloor-outlet bfixtures bthat bare bbattery
bwasted. bThe bvent bextends bfrom bthe btop bof bthe bhorizontal bsoil band/or bwaste
bbranch bin bfront bof bthe blast bfixture bwaste band bconnects bto ba bvent bstack bor bstack
bvent bthat bis badjacent bto bthe bdown-stream bend bof bthe bhorizontal bbranch.
A) bSide bB) bLoop bC) bRelief bD) bCircuit b- bcorrect banswer✔✔loop
MATCH: b
Elevated bpressure b
Flow bdesignation b
Ten bP.S.I.G. bor bless
, bLess bthan b2-P.S.I b
A) b3 bP.S.I.G. bor bten btimes
B) bInlet bpressure b
bC) bE.H.D.
D) bProf. bEngineer b- bcorrect banswer✔✔elevated bpressure- bd
flow bdesignation-c
Ten bP.S.I.G. bor bless-a
Less bthan b2-P.S.I-b
N: bA bjourneyman bplumber bis binstalling bcategory-I bgas bappliances band bequipment
bin bthe bbasement bof ba bbuilding. bA b120,000 bBTU/hr. bboiler band b40,000 bBTU/hr.
bwater bheater bare bbeing binstalled. bQUESTION: bWhat banswer bbelow bshall bbe
bconsidered bmost bcorrect bto bcomplete bthe bfollowing b"Gas bcode bknowledge" brelated
bstatement: bThe bboiler brequires ba bminimum bof b_____-cu. bft. bof bair bto bsupport
bproper bcombustion
A) b2,400 bcu. bft. bB) b120 bsq. bin. bC) b3,200 bsq. bft. bD) b800 bcu. bft. b- bcorrect
banswer✔✔2,400 bcu. bft. b120,000/50
) bQUESTION: bWhat banswer bbelow bshall bbe bconsidered bmost bcorrect bto bcomplete
bthe bfollowing b"Gas bcode bknowledge" brelated bstatement: bThe bcode bwould brequire
bthe bgas bvent bpenetrating bthe broof bin-[FIGURE-TP-B-Q1-1A: bGAS bVENT bSIZING]
bas bidentified bat bpoint-[A] bto bbe bnot bless bthan b______ babove bany bportion bof ba
bbuilding bwithin b10-feet bhorizontally.
A) b24" bB) b3-feet bC) b30-inches bD) bForty-two-inches b- bcorrect banswer✔✔24
In bMassachusetts bcopper btubing band bfittings bmay bbe bused bfor bnatural bgas bpiping
A) bProvided bthat bthe btubing bis btype-k bwith bflared bfitting bconnections. bB) bWhen
bapproved bby bthe bauthority bhaving bjurisdiction.
C) bAt binterior blocations bonly band bnot bconcealed. b
D) bIf bthe bgas bcontains bno bmore bthan b.03 bgrains bof bhydrogen bsulfide bper b100 bcu.
bft. bof bgas. b- bcorrect banswer✔✔If bthe bgas bcontains bno bmore bthan b.03 bgrains bof
bhydrogen bsulfide bper b100 bcu. bft. bof bgas
: bA bjourneyman bplumber band bapprentice, bwho bare bemployed bby ba bmaster
bplumber, bare binstalling ba bnatural bgas bfired bcategory-1 bboiler band bwater bheater bto
ban binterior, bclay btile blined, bmasonry bchimney. bWhen bmeasured bin bcompliance bwith
bthe bcode bthe bchimney b"height" bis b48-feet. bQUESTION: bWhat banswer bbelow bshall
bbe bconsidered bmost bcorrect bto bcomplete bthe bfollowing b"Gas bcode bknowledge"
brelated bstatement: b_____ bis bthe bmaximum ballowable bamount bof b6-inch bsingle bwall
bmetal bvent bconnector bmaterial bthat bmay bbe binstalled bhorizontally bto bconnect bthe
bboiler band bwater bheater bto bthe bchimney
PLUMBING )ACTUAL QUESTIONS
WITH CORRECT ANSWERS.
A bjourneyman bplumber band ban bapprentice, bwho bare bemployed bby ba bmaster
bplumber, bare binstalling bthe bDWV-system band bwater bdistribution bsystem bin ba b2-½
bstory bsingle bfamily bdwelling. bQUESTION: bWhat banswer bbelow bshall bbe bconsidered
bmost bcorrect bto bcomplete bthe bfollowing b"Plumbing bcode bknowledge" brelated
bstatement: bA btrap bthat bserves ba bsingle bshower bstall bthat bis bequipped bwith ba
bhand bshower, ba brain bhead, band ba bstandard bshower bhead bshall bbe bno bless bthan
b________ bin bminimum bdiameter
A) b1-½" bB) b2" bC) b2-½" bD) b3" b- bcorrect banswer✔✔2 binches
A bjourneyman bplumber band bapprentice bare binstalling b3-inch bfloor bdrains bin ban
bopen-parking-garage bthat bis bsubject bto bfreezing btemperatures. bQUESTION: bWhat
banswer bbelow bshall bbe bconsidered bmost bcorrect bto bcomplete bthe bfollowing
b"Plumbing bcode bknowledge" brelated bstatement: bThe binstallation bof btraps bat bthe
bfloor bdrain blocations bwhich bare bfound bsusceptible bto bfreezing btemperatures bmay
bbe b__________.
A)Increased bto b4-inch bB) bEliminated bC) bWrapped bwith bfreeze bprotection bcable bD)
bInsulated b- bcorrect banswer✔✔eliminated
A bjourneyman bplumber band bapprentice bare binstalling blab bsinks bwith bfaucets bthat
bare bconnected bto ban bacid bwaste bsystem bfor-(special bhazardous bwaste) bin ba
bmedical blab. bWhat banswer bbelow bshall bbe bconsidered bmost bcorrect bto bcomplete
bthe bfollowing b"Plumbing bcode bknowledge" brelated bstatement: bVacuum bbreakers
bshall bbe binstalled bwith bthe bcritical blevel bat bleast b_____-inches babove bthe bflood
blevel brim bof bthe bfixture bthey bserve band bon bthe bdischarge bside bof bthe blast bcontrol
bvalve bto bthe bfixture.
A) b12 bB) b6 bC) b18 bD) b3 b- bcorrect banswer✔✔6 binches
,What banswer bbelow bshall bbe bconsidered bmost bcorrect bto bcomplete bthe bfollowing
b"Plumbing bcode bknowledge" brelated bstatement: bNo bplumbing bpermit bshall bbe
bissued bfor bcross bconnection binstallations bthat brequire b______________ buntil bthe
bapplication bfor ba bpermit bis baccompanied bby ba bletter bof bapproval bfrom bthe
bMassachusetts bDepartment bof bEnvironmental bProtection bor bits bdesignee.
A) bRPBP bB) bA b"critical blevel" bheight bC) bAtmospheric bvacuum bbreakers bD) bWater
brecycling bsystems b- bcorrect banswer✔✔reduced bpressure bbackflow bpreventer
b(RPBP)
: bWhat banswer bbelow bshall bbe bconsidered bmost bcorrect bto bcomplete bthe bfollowing
b"Plumbing bcode bknowledge" brelated bstatement: bThe bwaste bdischarge bfrom bsafe
bwaste bpans bserving bwater bheaters bor bhot bwater bstorage btanks bwhere bthere bis
b_______ bbelow band bshall bbe bpiped bindirectly bto ba bproperly btrapped band bvented
bfixture.
A) bPeople bB) bOccupancy bC) bFloors bD) bPlumbing bconnections b- bcorrect
banswer✔✔occupancy
GIVEN: bA bjourneyman bplumber band ban bapprentice, b(who bare bemployed bby ba
bmaster bplumber), bare binstalling bthe bsanitary bDWV band bwater bdistribution bsystem
bin ba bfive-story bresidential bcondominium bcomplex. bQUESTION: bWhat banswer bbelow
bshall bbe bconsidered bmost bcorrect bto bcomplete bthe bfollowing b"Plumbing bcode
bknowledge" brelated bstatement: bCPVC-(Chlorinated bPolyvinyl bChloride) bpipe band
bfittings bmay bbe bused bprovided bthat bnone bof bthis bmaterial bis blocated bwithin b____-
inches bof bany bconnection bto ba bhot bwater btank bas bdefined bin bMGL. bc. b142, b§ b17
A) b12 bB) b18 bC) b20 bD) b24 bE) b30 b- bcorrect banswer✔✔24 binches
: bA bjourneyman bplumber band bapprentice bare broughing-in bmultiple bfixtures bin ba
bnew bfitness bcenter. bThe bfacility bwill binclude ba bjuice bbar, btemporary bdaycare broom,
bmen's band bwomen's btoilet bfacilities band bmen's band bwomen's blocker brooms.
bQUESTION: bWhat banswer bbelow bshall bbe bconsidered bmost bcorrect bto bcomplete
bthe bfollowing b"Plumbing bcode bknowledge" brelated bstatement: bA b________-vent bis
ba bbranch bvent bthat bserves btwo bor bmore bfloor-outlet bfixtures bthat bare bbattery
bwasted. bThe bvent bextends bfrom bthe btop bof bthe bhorizontal bsoil band/or bwaste
bbranch bin bfront bof bthe blast bfixture bwaste band bconnects bto ba bvent bstack bor bstack
bvent bthat bis badjacent bto bthe bdown-stream bend bof bthe bhorizontal bbranch.
A) bSide bB) bLoop bC) bRelief bD) bCircuit b- bcorrect banswer✔✔loop
MATCH: b
Elevated bpressure b
Flow bdesignation b
Ten bP.S.I.G. bor bless
, bLess bthan b2-P.S.I b
A) b3 bP.S.I.G. bor bten btimes
B) bInlet bpressure b
bC) bE.H.D.
D) bProf. bEngineer b- bcorrect banswer✔✔elevated bpressure- bd
flow bdesignation-c
Ten bP.S.I.G. bor bless-a
Less bthan b2-P.S.I-b
N: bA bjourneyman bplumber bis binstalling bcategory-I bgas bappliances band bequipment
bin bthe bbasement bof ba bbuilding. bA b120,000 bBTU/hr. bboiler band b40,000 bBTU/hr.
bwater bheater bare bbeing binstalled. bQUESTION: bWhat banswer bbelow bshall bbe
bconsidered bmost bcorrect bto bcomplete bthe bfollowing b"Gas bcode bknowledge" brelated
bstatement: bThe bboiler brequires ba bminimum bof b_____-cu. bft. bof bair bto bsupport
bproper bcombustion
A) b2,400 bcu. bft. bB) b120 bsq. bin. bC) b3,200 bsq. bft. bD) b800 bcu. bft. b- bcorrect
banswer✔✔2,400 bcu. bft. b120,000/50
) bQUESTION: bWhat banswer bbelow bshall bbe bconsidered bmost bcorrect bto bcomplete
bthe bfollowing b"Gas bcode bknowledge" brelated bstatement: bThe bcode bwould brequire
bthe bgas bvent bpenetrating bthe broof bin-[FIGURE-TP-B-Q1-1A: bGAS bVENT bSIZING]
bas bidentified bat bpoint-[A] bto bbe bnot bless bthan b______ babove bany bportion bof ba
bbuilding bwithin b10-feet bhorizontally.
A) b24" bB) b3-feet bC) b30-inches bD) bForty-two-inches b- bcorrect banswer✔✔24
In bMassachusetts bcopper btubing band bfittings bmay bbe bused bfor bnatural bgas bpiping
A) bProvided bthat bthe btubing bis btype-k bwith bflared bfitting bconnections. bB) bWhen
bapproved bby bthe bauthority bhaving bjurisdiction.
C) bAt binterior blocations bonly band bnot bconcealed. b
D) bIf bthe bgas bcontains bno bmore bthan b.03 bgrains bof bhydrogen bsulfide bper b100 bcu.
bft. bof bgas. b- bcorrect banswer✔✔If bthe bgas bcontains bno bmore bthan b.03 bgrains bof
bhydrogen bsulfide bper b100 bcu. bft. bof bgas
: bA bjourneyman bplumber band bapprentice, bwho bare bemployed bby ba bmaster
bplumber, bare binstalling ba bnatural bgas bfired bcategory-1 bboiler band bwater bheater bto
ban binterior, bclay btile blined, bmasonry bchimney. bWhen bmeasured bin bcompliance bwith
bthe bcode bthe bchimney b"height" bis b48-feet. bQUESTION: bWhat banswer bbelow bshall
bbe bconsidered bmost bcorrect bto bcomplete bthe bfollowing b"Gas bcode bknowledge"
brelated bstatement: b_____ bis bthe bmaximum ballowable bamount bof b6-inch bsingle bwall
bmetal bvent bconnector bmaterial bthat bmay bbe binstalled bhorizontally bto bconnect bthe
bboiler band bwater bheater bto bthe bchimney
