THE ELECTRICAL NCCER TEST DRIVE
n n n n
R'S PERMIT MANUAL TN EXAM | QUESTI
n n n n n n
ONS & ANSWERS (VERIFIED) | LATEST U
n n n n n n
PDATE | GRADED A+ n n n
WhichnArticlenofnthenNECncoversngrounding?
Correctn Answer: articlen250
Whichnofnthenfollowingnisnan90ndegree,nexplosionnproofnfitting?
Correctn Answer: GUAL
Whatnisnandropoutnplate?
Correctn Answer: Metalnplatenwithnancurvednsurfacenforncablentonfollownasnitnpasses
fromnthentray
AllnofnthenfollowingnarencommonnservicenvoltagesninnthenUnitednStatesnEXCEPT:
Correctn Answer: 372/575n3-PHASE,n4-WIRE
WhatndoesnanGFCInbreakerndo?
Correctn Answer: Opensnancircuitntonpreventnoperationnofnannelectricalndevice
1
,Whatnwillnhappennwhennonenornmorencoilsninnanwindingnarengrounded?
Correctn Answer: Thenmotornwillnautomaticallynblownfuses
Eightnincandescentnlightingnfixturesnarentonbeninstalled.nEachnfixturenisn120-nvolts,nwithna
200-wattnlamp.nWhatnisnthentotalnconnectednload?
Correctn Answer: 13.3namps
Thenmustnbengroundedninnanbussedngutternifnusednasnthenmainnservicenequipment.
Correctn Answer: Neutralnbusbar
Whennwallnmountingncablentray,nensurenthat
Correctn Answer: Thenbuildingnstructurenisnstrongnenoughntonsupportnthentraynsystem
Thenpurposenofnsealingncablenendsnwhennreelsnofncablenareninnstoragenis
Correctn Answer: Tonkeepnmoisturenfromncreepingnin
Thenouterncoveringnonnliguid-tightnflexiblenmetalnconduitnisnusednfor
Correctn Answer: Anmoisturenseal
Angoodnelectricalnconnectionnshould
Correctn Answer: Benmechanicallynandnelectricallynsecure
Thensymbolnnormallynusednfornduplex
2
,Correctn Answer: Circlenwithntwonparallelnlinesndrawbnthroughnit
Disconnectingnmeansnarencoverednin
Correctn Answer: NECnSectionn110-22
Innrelationntonswitches,nthentermnthrownrefersntonthe
Correctn Answer: Numbernofninternalnoperationsnthatnanswitchncannperform
An3-phase,n4-wire,n480vnservicenrequires currentntransformer(s)
Correctn Answer: 3
Servicesnconductorsnandnequipmentnarencoverednin
Correctn Answer: NECnArticlen230
ThenNECnrequirednthatnallnreceptaclesninstallednonn25nampnandn20nampnbranchncircuits
be receptacles
Correctn Answer: Grounding
Antransformernwithnthenprimarynofn400nturnsnandnansecondarynofn300nturnsnhasna
Correctn Answer: Step-downnturnsnrationofn4:3
Thencircularnmilnisnbasednonnthe
Correctn Answer: Cross-sectionalnareanofnthenwire
3
, Ofnthenterminationnclassesnlistednbelow, isnthenonlynonenthatnprovidesnanseal
againstnexternalnelements.
Correctn Answer: Classn1
Unlessnotherwisennoted.nthencalculationsninnACncircuits values.
Correctn Answer: Rms
Whennthencoilnturnsnarenincreasednthe
Correctn Answer: Inducednvoltagenisnincreased
Asnthentemperaturensurroundingnanself-regulatingnheatingncablenrises,nthe
Correctn Answer: Resistancenofnthenpolymericncorenincreases
Thenmotorntypenthatnhasnthenhighestnstartingntorquenisnthe motor.
Correctn Answer: Capacitor-start
Fornangivennnumbernofnpoles,nthe determinesnthenspeednofnannACnmotor.
Correctn Answer: Frequency
Bothninductionnandnsynchronousnmotorsnoperatenonnthenprinciplenofnanrotating field
Correctn Answer: Magnetic
4
n n n n
R'S PERMIT MANUAL TN EXAM | QUESTI
n n n n n n
ONS & ANSWERS (VERIFIED) | LATEST U
n n n n n n
PDATE | GRADED A+ n n n
WhichnArticlenofnthenNECncoversngrounding?
Correctn Answer: articlen250
Whichnofnthenfollowingnisnan90ndegree,nexplosionnproofnfitting?
Correctn Answer: GUAL
Whatnisnandropoutnplate?
Correctn Answer: Metalnplatenwithnancurvednsurfacenforncablentonfollownasnitnpasses
fromnthentray
AllnofnthenfollowingnarencommonnservicenvoltagesninnthenUnitednStatesnEXCEPT:
Correctn Answer: 372/575n3-PHASE,n4-WIRE
WhatndoesnanGFCInbreakerndo?
Correctn Answer: Opensnancircuitntonpreventnoperationnofnannelectricalndevice
1
,Whatnwillnhappennwhennonenornmorencoilsninnanwindingnarengrounded?
Correctn Answer: Thenmotornwillnautomaticallynblownfuses
Eightnincandescentnlightingnfixturesnarentonbeninstalled.nEachnfixturenisn120-nvolts,nwithna
200-wattnlamp.nWhatnisnthentotalnconnectednload?
Correctn Answer: 13.3namps
Thenmustnbengroundedninnanbussedngutternifnusednasnthenmainnservicenequipment.
Correctn Answer: Neutralnbusbar
Whennwallnmountingncablentray,nensurenthat
Correctn Answer: Thenbuildingnstructurenisnstrongnenoughntonsupportnthentraynsystem
Thenpurposenofnsealingncablenendsnwhennreelsnofncablenareninnstoragenis
Correctn Answer: Tonkeepnmoisturenfromncreepingnin
Thenouterncoveringnonnliguid-tightnflexiblenmetalnconduitnisnusednfor
Correctn Answer: Anmoisturenseal
Angoodnelectricalnconnectionnshould
Correctn Answer: Benmechanicallynandnelectricallynsecure
Thensymbolnnormallynusednfornduplex
2
,Correctn Answer: Circlenwithntwonparallelnlinesndrawbnthroughnit
Disconnectingnmeansnarencoverednin
Correctn Answer: NECnSectionn110-22
Innrelationntonswitches,nthentermnthrownrefersntonthe
Correctn Answer: Numbernofninternalnoperationsnthatnanswitchncannperform
An3-phase,n4-wire,n480vnservicenrequires currentntransformer(s)
Correctn Answer: 3
Servicesnconductorsnandnequipmentnarencoverednin
Correctn Answer: NECnArticlen230
ThenNECnrequirednthatnallnreceptaclesninstallednonn25nampnandn20nampnbranchncircuits
be receptacles
Correctn Answer: Grounding
Antransformernwithnthenprimarynofn400nturnsnandnansecondarynofn300nturnsnhasna
Correctn Answer: Step-downnturnsnrationofn4:3
Thencircularnmilnisnbasednonnthe
Correctn Answer: Cross-sectionalnareanofnthenwire
3
, Ofnthenterminationnclassesnlistednbelow, isnthenonlynonenthatnprovidesnanseal
againstnexternalnelements.
Correctn Answer: Classn1
Unlessnotherwisennoted.nthencalculationsninnACncircuits values.
Correctn Answer: Rms
Whennthencoilnturnsnarenincreasednthe
Correctn Answer: Inducednvoltagenisnincreased
Asnthentemperaturensurroundingnanself-regulatingnheatingncablenrises,nthe
Correctn Answer: Resistancenofnthenpolymericncorenincreases
Thenmotorntypenthatnhasnthenhighestnstartingntorquenisnthe motor.
Correctn Answer: Capacitor-start
Fornangivennnumbernofnpoles,nthe determinesnthenspeednofnannACnmotor.
Correctn Answer: Frequency
Bothninductionnandnsynchronousnmotorsnoperatenonnthenprinciplenofnanrotating field
Correctn Answer: Magnetic
4
