JOURNEYMAN TEST QUESTIONS WITH
COMPLETE SOLUTIONS
Feeders fcontaining fa fcommon fneutral fare fpermitted fto fsupply fhow fmany fsets fof f5-
wire ffeeders? f- f✔✔2
To fmeasure fthe farea fof fa fdwelling fto fdetermine fthe flighting fload, fthe ffallowing
fdimensions fare fuse: f- f✔✔the ffloor farea fcomputed ffrom fthe foutside fdimensions
The fgeneral flighting fload ffor fresidential fservices fis fcalculated fat? f- f✔✔3 fwatts fper
fsquare ffoot
What fis fthe fminimum fload fper feach flinear ffoot fthat fmust fbe fallowed ffor fshow-window
flighting? f- f✔✔200 fvolt-amperes
Residential fsmall fappliances fcircuits fare fcalculated fat? f- f✔✔1500 fwatts feach
The fbranch-circuit fload ffor fa fsingle f12-kilowatt f(12 fkW) felectric frange fin fa fdwelling
fis? f- f✔✔Answer: f8 fkW
Reference: f2011 fNEC f220.55 fTable
If ffour f12 fkW felectric franges fare fused fin fa ffour-unit fapartment fcomplex f, fwhat fis fthe
ftotal fkW frating fthat fmust fbe fused ffor fall fof fthese franges fin fcalculating fthe felectric
fservice? f- f✔✔Answer: f17 fkW
Reference: f2011 fNEC f220.55 fTable
What fis fthe fminimum fheight fof fa fset fhorizontal fcurrent fcarrying fconductors fnot
fattached fto fa fbuilding? f- f✔✔10ft.
Reference: f2011 fNEC f225.18(1)
Service fconductors frun fabove fthe ftop flevel fof fa fwindow fshall fbe fpermitted fto fbe fless
fthan fthe f____ frequirement. f- f✔✔Answer: f3-foot
Reference: f2011 fNEC f225.19(D) f(1)
Where foutdoor fpendant-type flamp fholders fhave fterminals fthat fpuncture fconductor
finsulation fto fmake fcontact fwith fthe fconductor, fwhat ftype fof fwire fmust fthe fconductor
fbe? f- f✔✔Answer: fstranded
Reference: f2011 fNEC f225.24
,When fthe fvoltage fexceeds f600 fvolts, fwhat fis fthe fminimum fcopper fwire fsize fallowed
ffor foutside foverhead fwiring? f- f✔✔Answer: fNo. f6 fAWG
Reference: f2011 fNEC f225.6(A) f(2)
What fis fthe fminimum fclearance fof fa fconductor fover fa froadway fthat fis f5 fkW? f-
f✔✔Answer: f18.5' fft.
Reference: f2011 fNEC f225.60
What fis fthe fminimum fhorizontal fclearance fof f5 fkW fconductors ffrom fa fbuilding? f-
f✔✔Answer: f7.5' fft.
Reference: f2011 fNEC f225.61
Five ffeet fof fan foverhead f240V fservice fdrop fpasses fover fa f4: f12 fslope. fThe fminimum
fclearance ffor fthe fservice fdrop fis? f- f✔✔Answer: f3 ffeet
Reference: f2011 fNEC f230.24(A) fException f2
Service fdrop fconductors f, fwhen fnot fin fexcess fof f150 fvolts fto fground, fthat fpass fover
fresidential fsidewalks f,finished fgrade f(the fground), for fover fany fplatform for fany
fprojection ffrom fwhich fthe fconductors fmay fbe freached f, fmust fhave fa fminimum
fclearance fof f- f✔✔Answer: f10 fft.
Reference: f2011 fNEC f230.24(B) f(1)
Service-drop fconductors, fwhen fnot fin fexcess fof f300 fvolts, fthat fpass fover fresidential
fdriveways fand fcommercial fareas fsuch fas fparking flots fand fdrive-in festablishments
fnot fsubject fto ftruck ftraffic fmust fhave fa fclearance fof fat fleast? f- f✔✔Answer: f12 fft.
Reference: f2011 fNEC f230.24(B) f(2)
Multicolored fcables fused ffor fservice fdrops fmust fbe fattached fto fbuildings for fother
fstructures fby: f- f✔✔Answer: ffittings fapproved ffor fthe fpurpose f
Reference: f2011 fNEC f230.27
What fis fthe fsmallest fcopper fwire fsize fallowed ffor fservice-entrance fconductors? f-
f✔✔Answer: fNo. f8 fAWG
Reference: f2011 fNEC f230.31(B)
What fis fthe fsmallest faluminum for fcopper-clad fwire fsize fallowed ffor fservice-entrance
fconductors? f- f✔✔Answer: fNo. f6 fAWG
Reference: f2011 fNEC f230.31(B)
The fminimum fallowable fcurrent frating fof f3-wire fservice-entrance fconductors ffor fa
fone-family fdwelling fis? f- f✔✔Answer: f100 famperes f
Reference: f2011 fNEC f230.42
Service-entrance fcable fmust falso fbe fsupported fat fintervals fof? f- f✔✔Answer: f2 f½'
Reference: f2011 fNEC f230.51(A)
, The fallowable fnumber fof fservice fdisconnects fcan fconsist fof fup fto? f- f✔✔Answer: fsix
Reference: f2011 fNEC f230.71(A)
A fmeans fmust fbe fprovided fto fdisconnect fthe fgrounded fconductor ffrom fthe fpremises
fwiring. fOne fapproved fmethod fis? f- f✔✔Answer: fa fterminal fwith fpressure fconnectors f
Reference: f2011 fNEC f230.75
The fservice fdisconnecting fmeans ffor fa ftwo-circuit finstallation fshall fnot fbe fless fthan? f-
f✔✔Answer: f30 famperes
Reference: f2011 fNEC f230.79(B)
The fminimum fallowable fcurrent frating fof f3-wire fservice-entrance fconductors ffor fa
fone-family fdwelling fwith fan finitial fnet fcomputed fload fof f10 fkVA for fmore fis? f- f✔✔:
f100 famperes fReference: f2011 fNEC f230.79(C)
Service fconductors fshall fnot fbe fconnected fto fthe fservice fdisconnecting fmeans fwith. f-
f✔✔Answer: fsolder fonly
Reference: f2011 fNEC f230.81
Where fmust fan fovercurrent fdevice fbe flocated fin fa fcircuit? f- f✔✔: fat fthe fpoint fwhere
fthe fconductor freceives fits fsupply
Reference: f2011 fNEC f240.21
A f600 famp ffeeder fin fa fwire fway fhas fa f200 famp ftap. fWhat fis fthe fmaximum fdistance
fthat fthe ftap fmay fbe? f- f✔✔25 fft.
Reference: f2011 fNEC f240.21 f(B) f(2)
A ffeeder ftap fless fthan f25 ffeet flong fdoes fnot frequire fovercurrent fprotection fat fthe ftap
fif fthe fampacity fof fthe ftap fconductors fis fat fleast? f- f✔✔33 f1/3% fof fthe ffeeder
fconductor f
Reference: f2011 fNEC f240.21(B) f(2)
Branch-circuit fovercurrent fdevices fare fnot fpermitted fin fwhich fof fthe ffollowing fareas? f-
f✔✔in fresidential for fmotel fbathrooms
Reference: f2011 fNEC f240.24(E)
What fis fthe fminimum fsize fTHW fcopper fconductor fthat fmay fbe fused fon fa f30-ampere
fbranch fcircuit? f- f✔✔No.10 fAWG f
Reference: f2011 fNEC fArticle f240.4 f(D) f(7)
The fmaximum fovercurrent fprotection fallowed fon fNo. f12 fAWG fcopper fwire fwhen fused
fin fa fraceway ffor fbranch fcircuits fis? f- f✔✔20 famperes
Reference: f2011 fNEC f240.4(D) f(5)
Circuit fbreakers fused fas fswitches ffor fhigh fintensity fdischarge flighting f(HID) fmust fbe
flisted fand fmarked. f- f✔✔HID fReference: f2011 fNEC f240.83(D)
COMPLETE SOLUTIONS
Feeders fcontaining fa fcommon fneutral fare fpermitted fto fsupply fhow fmany fsets fof f5-
wire ffeeders? f- f✔✔2
To fmeasure fthe farea fof fa fdwelling fto fdetermine fthe flighting fload, fthe ffallowing
fdimensions fare fuse: f- f✔✔the ffloor farea fcomputed ffrom fthe foutside fdimensions
The fgeneral flighting fload ffor fresidential fservices fis fcalculated fat? f- f✔✔3 fwatts fper
fsquare ffoot
What fis fthe fminimum fload fper feach flinear ffoot fthat fmust fbe fallowed ffor fshow-window
flighting? f- f✔✔200 fvolt-amperes
Residential fsmall fappliances fcircuits fare fcalculated fat? f- f✔✔1500 fwatts feach
The fbranch-circuit fload ffor fa fsingle f12-kilowatt f(12 fkW) felectric frange fin fa fdwelling
fis? f- f✔✔Answer: f8 fkW
Reference: f2011 fNEC f220.55 fTable
If ffour f12 fkW felectric franges fare fused fin fa ffour-unit fapartment fcomplex f, fwhat fis fthe
ftotal fkW frating fthat fmust fbe fused ffor fall fof fthese franges fin fcalculating fthe felectric
fservice? f- f✔✔Answer: f17 fkW
Reference: f2011 fNEC f220.55 fTable
What fis fthe fminimum fheight fof fa fset fhorizontal fcurrent fcarrying fconductors fnot
fattached fto fa fbuilding? f- f✔✔10ft.
Reference: f2011 fNEC f225.18(1)
Service fconductors frun fabove fthe ftop flevel fof fa fwindow fshall fbe fpermitted fto fbe fless
fthan fthe f____ frequirement. f- f✔✔Answer: f3-foot
Reference: f2011 fNEC f225.19(D) f(1)
Where foutdoor fpendant-type flamp fholders fhave fterminals fthat fpuncture fconductor
finsulation fto fmake fcontact fwith fthe fconductor, fwhat ftype fof fwire fmust fthe fconductor
fbe? f- f✔✔Answer: fstranded
Reference: f2011 fNEC f225.24
,When fthe fvoltage fexceeds f600 fvolts, fwhat fis fthe fminimum fcopper fwire fsize fallowed
ffor foutside foverhead fwiring? f- f✔✔Answer: fNo. f6 fAWG
Reference: f2011 fNEC f225.6(A) f(2)
What fis fthe fminimum fclearance fof fa fconductor fover fa froadway fthat fis f5 fkW? f-
f✔✔Answer: f18.5' fft.
Reference: f2011 fNEC f225.60
What fis fthe fminimum fhorizontal fclearance fof f5 fkW fconductors ffrom fa fbuilding? f-
f✔✔Answer: f7.5' fft.
Reference: f2011 fNEC f225.61
Five ffeet fof fan foverhead f240V fservice fdrop fpasses fover fa f4: f12 fslope. fThe fminimum
fclearance ffor fthe fservice fdrop fis? f- f✔✔Answer: f3 ffeet
Reference: f2011 fNEC f230.24(A) fException f2
Service fdrop fconductors f, fwhen fnot fin fexcess fof f150 fvolts fto fground, fthat fpass fover
fresidential fsidewalks f,finished fgrade f(the fground), for fover fany fplatform for fany
fprojection ffrom fwhich fthe fconductors fmay fbe freached f, fmust fhave fa fminimum
fclearance fof f- f✔✔Answer: f10 fft.
Reference: f2011 fNEC f230.24(B) f(1)
Service-drop fconductors, fwhen fnot fin fexcess fof f300 fvolts, fthat fpass fover fresidential
fdriveways fand fcommercial fareas fsuch fas fparking flots fand fdrive-in festablishments
fnot fsubject fto ftruck ftraffic fmust fhave fa fclearance fof fat fleast? f- f✔✔Answer: f12 fft.
Reference: f2011 fNEC f230.24(B) f(2)
Multicolored fcables fused ffor fservice fdrops fmust fbe fattached fto fbuildings for fother
fstructures fby: f- f✔✔Answer: ffittings fapproved ffor fthe fpurpose f
Reference: f2011 fNEC f230.27
What fis fthe fsmallest fcopper fwire fsize fallowed ffor fservice-entrance fconductors? f-
f✔✔Answer: fNo. f8 fAWG
Reference: f2011 fNEC f230.31(B)
What fis fthe fsmallest faluminum for fcopper-clad fwire fsize fallowed ffor fservice-entrance
fconductors? f- f✔✔Answer: fNo. f6 fAWG
Reference: f2011 fNEC f230.31(B)
The fminimum fallowable fcurrent frating fof f3-wire fservice-entrance fconductors ffor fa
fone-family fdwelling fis? f- f✔✔Answer: f100 famperes f
Reference: f2011 fNEC f230.42
Service-entrance fcable fmust falso fbe fsupported fat fintervals fof? f- f✔✔Answer: f2 f½'
Reference: f2011 fNEC f230.51(A)
, The fallowable fnumber fof fservice fdisconnects fcan fconsist fof fup fto? f- f✔✔Answer: fsix
Reference: f2011 fNEC f230.71(A)
A fmeans fmust fbe fprovided fto fdisconnect fthe fgrounded fconductor ffrom fthe fpremises
fwiring. fOne fapproved fmethod fis? f- f✔✔Answer: fa fterminal fwith fpressure fconnectors f
Reference: f2011 fNEC f230.75
The fservice fdisconnecting fmeans ffor fa ftwo-circuit finstallation fshall fnot fbe fless fthan? f-
f✔✔Answer: f30 famperes
Reference: f2011 fNEC f230.79(B)
The fminimum fallowable fcurrent frating fof f3-wire fservice-entrance fconductors ffor fa
fone-family fdwelling fwith fan finitial fnet fcomputed fload fof f10 fkVA for fmore fis? f- f✔✔:
f100 famperes fReference: f2011 fNEC f230.79(C)
Service fconductors fshall fnot fbe fconnected fto fthe fservice fdisconnecting fmeans fwith. f-
f✔✔Answer: fsolder fonly
Reference: f2011 fNEC f230.81
Where fmust fan fovercurrent fdevice fbe flocated fin fa fcircuit? f- f✔✔: fat fthe fpoint fwhere
fthe fconductor freceives fits fsupply
Reference: f2011 fNEC f240.21
A f600 famp ffeeder fin fa fwire fway fhas fa f200 famp ftap. fWhat fis fthe fmaximum fdistance
fthat fthe ftap fmay fbe? f- f✔✔25 fft.
Reference: f2011 fNEC f240.21 f(B) f(2)
A ffeeder ftap fless fthan f25 ffeet flong fdoes fnot frequire fovercurrent fprotection fat fthe ftap
fif fthe fampacity fof fthe ftap fconductors fis fat fleast? f- f✔✔33 f1/3% fof fthe ffeeder
fconductor f
Reference: f2011 fNEC f240.21(B) f(2)
Branch-circuit fovercurrent fdevices fare fnot fpermitted fin fwhich fof fthe ffollowing fareas? f-
f✔✔in fresidential for fmotel fbathrooms
Reference: f2011 fNEC f240.24(E)
What fis fthe fminimum fsize fTHW fcopper fconductor fthat fmay fbe fused fon fa f30-ampere
fbranch fcircuit? f- f✔✔No.10 fAWG f
Reference: f2011 fNEC fArticle f240.4 f(D) f(7)
The fmaximum fovercurrent fprotection fallowed fon fNo. f12 fAWG fcopper fwire fwhen fused
fin fa fraceway ffor fbranch fcircuits fis? f- f✔✔20 famperes
Reference: f2011 fNEC f240.4(D) f(5)
Circuit fbreakers fused fas fswitches ffor fhigh fintensity fdischarge flighting f(HID) fmust fbe
flisted fand fmarked. f- f✔✔HID fReference: f2011 fNEC f240.83(D)
