THE ELECTRICAL NCCER TEST DRIVE
g g g g
R'S PERMIT MANUALTN EXAM | QUESTI
g g g g g g
ONS & ANSWERS (VERIFIED) | LATEST U
g g g g g g
PDATE | GRADED A+ g g g
WhichgArticlegofgthegNECgcoversggrounding?
Correctg Answer: articleg250
Whichgofgthegfollowinggisgag90gdegree,gexplosiongproofgfitting?
Correctg Answer: GUAL
Whatgisgagdropoutgplate?
Correctg Answer: Metalgplategwithgagcurvedgsurfacegforgcablegtogfollowgasgitgpasses
fromgthegtray
AllgofgthegfollowinggaregcommongservicegvoltagesgingthegUnitedgStatesgEXCEPT:
Correctg Answer: 372/575g3-PHASE,g4-WIRE
WhatgdoesgagGFCIgbreakergdo?
Correctg Answer: Opensgagcircuitgtogpreventgoperationgofgangelectricalgdevice
1
,Whatgwillghappengwhengonegorgmoregcoilsgingagwindinggareggrounded?
Correctg Answer: Thegmotorgwillgautomaticallygblowgfuses
Eightgincandescentglightinggfixturesgaregtogbeginstalled.gEachgfixturegisg120-gvolts,gwithga
200-wattglamp.gWhatgisgthegtotalgconnectedgload?
Correctg Answer: 13.3gamps
Thegmustgbeggroundedgingagbussedgguttergifgusedgasgthegmaingservicegequipment.
Correctg Answer: Neutralgbusbar
Whengwallgmountinggcablegtray,gensuregthat
Correctg Answer: Thegbuildinggstructuregisgstronggenoughgtogsupportgthegtraygsystem
Thegpurposegofgsealinggcablegendsgwhengreelsgofgcablegaregingstoragegis
Correctg Answer: Togkeepgmoisturegfromgcreepinggin
Thegoutergcoveringgongliguid-tightgflexiblegmetalgconduitgisgusedgfor
Correctg Answer: Agmoisturegseal
Aggoodgelectricalgconnectiongshould
Correctg Answer: Begmechanicallygandgelectricallygsecure
Thegsymbolgnormallygusedgforgduplex
2
,Correctg Answer: Circlegwithgtwogparallelglinesgdrawbgthroughgit
Disconnectinggmeansgaregcoveredgin
Correctg Answer: NECgSectiong110-22
Ingrelationgtogswitches,gthegtermgthrowgrefersgtogthe
Correctg Answer: Numbergofginternalgoperationsgthatgagswitchgcangperform
Ag3-phase,g4-wire,g480vgservicegrequires currentgtransformer(s)
Correctg Answer: 3
Servicesgconductorsgandgequipmentgaregcoveredgin
Correctg Answer: NECgArticleg230
ThegNECgrequiredgthatgallgreceptaclesginstalledgong25gampgandg20gampgbranchgcircuits
be receptacles
Correctg Answer: Grounding
Agtransformergwithgthegprimarygofg400gturnsgandgagsecondarygofg300gturnsghasga
Correctg Answer: Step-downgturnsgratiogofg4:3
Thegcirculargmilgisgbasedgongthe
Correctg Answer: Cross-sectionalgareagofgthegwire
3
, Ofgthegterminationgclassesglistedgbelow, isgthegonlygonegthatgprovidesgagseal
againstgexternalgelements.
Correctg Answer: Classg1
Unlessgotherwisegnoted.gthegcalculationsgingACgcircuits values.
Correctg Answer: Rms
Whengthegcoilgturnsgaregincreasedgthe
Correctg Answer: Inducedgvoltagegisgincreased
Asgthegtemperaturegsurroundinggagself-regulatinggheatinggcablegrises,gthe
Correctg Answer: Resistancegofgthegpolymericgcoregincreases
Thegmotorgtypegthatghasgtheghighestgstartinggtorquegisgthe motor.
Correctg Answer: Capacitor-start
Forgaggivengnumbergofgpoles,gthe determinesgthegspeedgofgangACgmotor.
Correctg Answer: Frequency
Bothginductiongandgsynchronousgmotorsgoperategongthegprinciplegofgagrotating field
Correctg Answer: Magnetic
4
g g g g
R'S PERMIT MANUALTN EXAM | QUESTI
g g g g g g
ONS & ANSWERS (VERIFIED) | LATEST U
g g g g g g
PDATE | GRADED A+ g g g
WhichgArticlegofgthegNECgcoversggrounding?
Correctg Answer: articleg250
Whichgofgthegfollowinggisgag90gdegree,gexplosiongproofgfitting?
Correctg Answer: GUAL
Whatgisgagdropoutgplate?
Correctg Answer: Metalgplategwithgagcurvedgsurfacegforgcablegtogfollowgasgitgpasses
fromgthegtray
AllgofgthegfollowinggaregcommongservicegvoltagesgingthegUnitedgStatesgEXCEPT:
Correctg Answer: 372/575g3-PHASE,g4-WIRE
WhatgdoesgagGFCIgbreakergdo?
Correctg Answer: Opensgagcircuitgtogpreventgoperationgofgangelectricalgdevice
1
,Whatgwillghappengwhengonegorgmoregcoilsgingagwindinggareggrounded?
Correctg Answer: Thegmotorgwillgautomaticallygblowgfuses
Eightgincandescentglightinggfixturesgaregtogbeginstalled.gEachgfixturegisg120-gvolts,gwithga
200-wattglamp.gWhatgisgthegtotalgconnectedgload?
Correctg Answer: 13.3gamps
Thegmustgbeggroundedgingagbussedgguttergifgusedgasgthegmaingservicegequipment.
Correctg Answer: Neutralgbusbar
Whengwallgmountinggcablegtray,gensuregthat
Correctg Answer: Thegbuildinggstructuregisgstronggenoughgtogsupportgthegtraygsystem
Thegpurposegofgsealinggcablegendsgwhengreelsgofgcablegaregingstoragegis
Correctg Answer: Togkeepgmoisturegfromgcreepinggin
Thegoutergcoveringgongliguid-tightgflexiblegmetalgconduitgisgusedgfor
Correctg Answer: Agmoisturegseal
Aggoodgelectricalgconnectiongshould
Correctg Answer: Begmechanicallygandgelectricallygsecure
Thegsymbolgnormallygusedgforgduplex
2
,Correctg Answer: Circlegwithgtwogparallelglinesgdrawbgthroughgit
Disconnectinggmeansgaregcoveredgin
Correctg Answer: NECgSectiong110-22
Ingrelationgtogswitches,gthegtermgthrowgrefersgtogthe
Correctg Answer: Numbergofginternalgoperationsgthatgagswitchgcangperform
Ag3-phase,g4-wire,g480vgservicegrequires currentgtransformer(s)
Correctg Answer: 3
Servicesgconductorsgandgequipmentgaregcoveredgin
Correctg Answer: NECgArticleg230
ThegNECgrequiredgthatgallgreceptaclesginstalledgong25gampgandg20gampgbranchgcircuits
be receptacles
Correctg Answer: Grounding
Agtransformergwithgthegprimarygofg400gturnsgandgagsecondarygofg300gturnsghasga
Correctg Answer: Step-downgturnsgratiogofg4:3
Thegcirculargmilgisgbasedgongthe
Correctg Answer: Cross-sectionalgareagofgthegwire
3
, Ofgthegterminationgclassesglistedgbelow, isgthegonlygonegthatgprovidesgagseal
againstgexternalgelements.
Correctg Answer: Classg1
Unlessgotherwisegnoted.gthegcalculationsgingACgcircuits values.
Correctg Answer: Rms
Whengthegcoilgturnsgaregincreasedgthe
Correctg Answer: Inducedgvoltagegisgincreased
Asgthegtemperaturegsurroundinggagself-regulatinggheatinggcablegrises,gthe
Correctg Answer: Resistancegofgthegpolymericgcoregincreases
Thegmotorgtypegthatghasgtheghighestgstartinggtorquegisgthe motor.
Correctg Answer: Capacitor-start
Forgaggivengnumbergofgpoles,gthe determinesgthegspeedgofgangACgmotor.
Correctg Answer: Frequency
Bothginductiongandgsynchronousgmotorsgoperategongthegprinciplegofgagrotating field
Correctg Answer: Magnetic
4
