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Journeyman Electrician Exam 3
Questions and answers | Latest 2024/
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Where IIa IIwater IIpipe IIpasses IIover IIan IIindoor IImotor IIcontrol IIcenter, IIleak IIprotection IIapparatus IIshall IIhave IIa IIMINIMUM IIclearance IIof II_____.
a) II 6 IIfeet IIto IIthe IIprotection IIapparatus b) II 6 IIfeet IIto IIthe IIwater IIpipe c) II 6 II1⁄2 IIfeet IIto IIthe IIprotection IIapparatus d) II 6 II1⁄2 IIfeet IIto IIthe IIwater IIpipe II- II II IIA: II 6 IIfeet IIto IIthe IIprotection IIapparatus Ref: II110.26(F)(1)(a)
II IIBranch IIcircuit IIgrounded IIconductors IIthat IIare IInot IIconnected IIto IIan IIovercurrent IIdevice IIshall IIbe IIpermitted IIto IIbe IIsized IIat IILEAST II_____ IIof IIthe IIcontinuous IIand IInoncontinuous IIload IIto IIbe IIserved.
a) II 100 IIpercent b) II 80 IIpercent c) II 75 IIpercent d) II 125 IIpercent II- II II IIA: II 100 IIpercent Ref: II210.19(A)(1), IIEx. II 2
II IIThe IIMAXIMUM IIstandard IIrating IIof IIthe IIinitial IInon-time-delay IIfuse IIfor IIthe IIbranch-circuit, IIshort-circuit, IIand IIground-fault IIprotection IIof IIa II 1 IIHP, IIthree-phase, II208-volt, IIsquirrel-cage IIAC IImotor IIshall IIbe II_____.
a) II 6 IIamperes b) II 10 IIamperes c) II 15 IIamperes d) II 20 IIamperes II- II II IIC: II 15 IIamperes Ref: II430.250; IITbl. II430.52; II430.52(C)(1), IIEx. Sol: IIFLC IIof IImotor II- II4.6 IIamperes IIx II300% II= II13.8 IIamperes
II IIFor IIClass IIIII IIequipment IIthat IIis IInot IIsubject IIto IIoverloading IIthe IIMAXIMUM IIsurface IItemperature IIunder IIoperating IIconditions IIshall IINOT IIexceed II_____.
a) II120°C b) II165°C c) II248°F d) II210°C II- II II IIB: II165°C Ref: II503.
II IIWhen IIa IImetal IIwireway IIcontains IIsplices IIand IItaps, IIthe IIconductors, IIsplices IIand IItaps IIshall IInot IIfill IIthe IIwireway IIto IImore IIthan II_____ IIof IIits IIarea IIat IIthat IIpoint.
a) II 20 IIpercent b) II 30 IIpercent c) II 40 IIpercent d) II 75 IIpercent II- II II IID: II 75 IIpercent Ref: II376.56(A)
II IIIn IIan IIunderground IIinstalled IISchedule II 40 IIPVC IIconduit IIsystem IIthat IIconsists IIof II 50 IIfeet IIin IIlength IIbetween IIpulling IIpoints, IIwhat IIis IIthe IIMAXIMUM IInumber IIof IIbends IIthis IIconduit IIrun IImay IIhave?
a) IIfour II90° IIbends b) IIsix II90° IIbends c) IIfour II120° IIbends d) IItwo II90° IIbends II- II II IIA: IIfour II90° IIbends Ref: II352.
II IIGrounding IIelectrodes IImade IIof IIpipe IIor IIconduit IIshall IInot IIbe IIsmaller IIthan II_____ IIelectrical IItrade IIsize.
a) II1⁄2 IIinch b) II3⁄4 IIinch c) II 1 IIinch d) II11⁄2 IIinch II- II II IIB: II3/4 IIinch Ref: II250.52(A)(5)(a)
II IILiquid-tight IIflexible IImetallic IIconduit II(LFMC) IIshall IINOT IIbe IIused II_____.
a) IIin IIlengths IIin IIexcess IIof II 6 IIfeet b) IIin IIconcealed IIwork c) IIin IIhazardous IIlocations d) IIwhere IIsubject IIto IIphysical IIdamage II- II II IID: IIwhere IIsubject IIto IIphysical IIdamage Ref: II350.12(1)
II IIDetermine IIthe IIallowable IIampacity IIof IIa IIsize II 3 IIAWG IITHHN IIcopper IIconductor IIgiven IIthe IIfollowing: II(1) IITwo IIcurrent-carrying IIconductors IIare IIin IIthe IIconduit. II(2) IIThe IIambient IItemperature IIis II34°C. II(3) IIThe IIterminations IIare IIrated II60°C.
a) II105.6 IIamperes b) II85.0 IIamperes c) II81.6 IIamperes d) II 110 IIamperes II- II II IIB: II85.0 IIamperes Ref: II110.14(C); II310.15(A)(2); IITbl. II310.
II IIIn IIgeneral, IIwhich IIof IIthe IIfollowing IIreceptacle IIoutlets IIin IIa IIcommercial IIkitchen IIare IIrequired IIby IIthe IINEC IIto IIbe IIGFCI IIprotected?
a) IIAll II125-volt, IIsingle-phase, II15- IIand II20-ampere IIrated IIreceptacles. b) IIAll II125-volt, II15- IIor II20-ampere IIrated IIreceptacles IIin IIwet IIlocations IIonly. c) IIAll IIreceptacle IIoutlets. d) IIAll II125-volt IIcountertop IIreceptacle IIoutlets IIonly. II- II II IIA: IIAll II125-volt, IIsingle-phase, II15- IIand II20-ampere IIrated IIreceptacles. Ref: II210.8(B)(2)
II IIAll IIwiring IIinstalled IIin IIor IIunder IIan IIaircraft IIhanger IIfloor IIshall IIcomply IIwith IIthe IIrequirements IIfor II_____ IIlocations.
a) IIClass III, IIDivision II 1 b) IIClass III, IIDivision II 2 c) IIClass IIII, IIDivision II 1 d) IIClass IIII, IIDivision II 2 II- II II IIA: IIClass III, IIDivision II 1 Ref: II513.8(A)
II IIIn IIgeneral, IIbranch-circuit IIconductors IIsupplying IImore IIthan IIone IImotor IIshall IIhave IIan IIampacity IIof IIat IIleast II_____ IIpercent IIof IIthe IIFLC IIof IIthe IIlargest IImotor, IIand II 100 IIpercent IIof IIthe IIFLC IIof IIthe IIother IImotor(s) IIin IIthe IIgroup.
a) II 25 b) II 80 c) II 100 d) II 125 II- II II IID: II 125 Ref: II430.
II IIWhat IIis IIthe IIMINIMUM IIsize IIequipment IIgrounding IIconductor IIrequired IIfor IIa II 5 IIHP, IIthree- phase, II208-volt IImotor IIhaving II20- IIampere IIrated IIoverload IIprotection IIand IIshort-circuit IIovercurrent IIprotection IIrated IIat II 30 IIamperes?
a) II 10 IIAWG b) II 14 IIAWG c) II 12 IIAWG d) II 8 IIAWG II- II II IIA: II 10 IIAWG Ref: IITbl. II250.
II IIIf IIa IIcircuit IIbreaker IIserves IIas IIthe IIcontroller IIfor IIa IImotor, IIand IIthe IImotor IIis IInot IIin IIsight IIof IIthe IIbreaker, IIthe IINEC IIrequires IIwhich IIof IIthe IIfollowing?
a) IIThe IImotor IIto IIbe IIless IIthan II 2 IIHP b) IIThe IIbreaker IIbe IIable IIto IIbe IIlocked IIin IIthe IIopen IIposition. c) IIThe IImotor IIto IIbe IICode IIletter IIE
d) IIThe IIbreaker IIto IIbe IIrated II25,000 IIAIC. II- II II IIB: IIThe IIbreaker IIbe IIable IIto IIbe IIlocked IIin IIthe IIopen IIposition. Ref: II430.102(B)(2), IIEx.
II IIIn IIClass IIII, IIDivision II1, IIhazardous IIlocations, IIan IIapproved IImethod IIof IIconnection IIof IIconduit IIto IIboxes IIis II_____.
a) IIcompression IIfittings b) IIthreaded IIbosses c) IIwelding d) IIall IIof IIthese II- II II IIB: IIthreaded IIbosses Ref: II502.10(A)(4)
II IIGiven: IIan IIAC IIservice IIis IIsupplied IIwith IIfour IIparallel IIsets IIof IIsize II 500 IIkcmil IIaluminum IIconductors. IIWhat IIis IIthe IIMINIMUM IIsize IIcopper IIgrounding IIelectrode IIrequired, IIwhen IIconnected IIto IIthe IIconcrete-encased IIbuilding IIsteel IIused IIas IIthe IIgrounding IIelectrode IIsystem?
a) II3/0 IIAWG b) II4/0 IIAWG c) II 250 IIkcmil d) II2/0 IIAWG II- II II IIA: II3/0 IIAWG Ref: IITbl. II250.
II IIGiven: IIan IIAC IItransformer IIarc IIwelder IIhas IIa II50-ampere IIrated IIprimary IIcurrent IIand IIa II 60 IIpercent IIduty-cycle. IIDetermine IIthe IIMINIMUM IIsize IIcopper II60°C IIrated IIconductors IIthe IINEC IIrequires IIto IIsupply IIthis IIwelder.
a) II 6 IIAWG b) II 8 IIAWG c) II 10 IIAWG d) II 4 IIAWG II- II II IIB: II 8 IIAWG Ref: II630.11(A); IITbl. II310. Sol: II.78 II(duty IIcycle) IIx II 50 IIamperes II(primary IIcurrent) II= II 39 IIamperes IITbl. II310.16 IIrequires IIa IIsize II 8 IIAWG IIconductor.
II IIWhen IIinstalling IIwiring IIfor IIsensitive IIelectronic IIequipment, IIthe IIMAXIMUM IIvoltage IIto IIground IIis IIrequired IIto IIbe II_____ IIvolts.
a) II 30 b) II 60 c) II 120 d) II 300 II- II II IIB: II 60 Ref: II647.
