NCCER ELECTRICAL LEVEL 2
GROUNDING AND BONDING GRADE A+
COMPLETE EXAM QUESTIONS AND
100% VERIFIED ANSWERS (2026/2027)
PASS GUARANTEE
NECRArticleR250R-
RCORRECTRANSWERIsRtheRprimaryRgoverningRarticleRforRtheRproperRuseRandRinstallationRofRground
ingRandRbonding
shortRcircuitR-
RCORRECTRANSWERaRconductingRconnection,RwhetherRintentionalRorRaccidental,RbetweenRanyRofR
theRconductorsRofRanRelectricalRsystem,RwhetherRitRisRfromRline-to-lineRorRfromRline-to-neutral
GroundRfaultR-
RCORRECTRANSWERasRdefinedRinRNECRArticleR100,RisRanRunintentional,RelectricallyRconductingRcon
nectionRbetweenRanRungroundedRconductorRofRanRelectricalRcircuitRandRtheRnormallyRnoncurrent-
carryingRconductors
equipmentRgroundingRconductorR-
RCORRECTRANSWERtheRconductiveRpathRusedRtoRconnectRtheRnoncurrent-
carryingRmetalRpartsRofRequipment,Rraceways,RandRotherRenclosuresRtoRtheRsystemRgroundedRcon
ductor,RtheRgroundingRelectrodeRconductor,RorRboth.
GroundingRsystemsRlessRthanR50vR-
RCORRECTRANSWERgroundingRisRrequiredRinRtheRfollowingRsituationRwhereRsuppliedRbyRtransform
ersRifRtheRsupplyRvoltageRtoRtheRtransformerRexceedsR150vRtoRground
GroundingRACRsystemsRoverR1kVR-
RCORRECTRANSWERmustRbeRgroundedRifRtheyRsupplyRmobileRorRportableRequipmentRasRcoveredRi
nRNECRSectionR250.188
, 5AR(R50-45=5)R-
RCORRECTRANSWERaRsingleRphaseRsystemRhasRtwoRlegs,RLegRARandRLegRB.RLegRARisRcarryingR50ARan
dRlegRBRisRcarryingR45A,RtheRcurrentRcarriedRbyRtheRneutralRisRwhat
-Lightning,R
-voltageRsurgesRhigherRthanRthatRforRwhichRtheRcircuitRisRdesignedR-
RCORRECTRANSWERaRgroundedRsystemRmustRlimitRtheRvoltageRonRtheRelectricalRsystemRandRprote
ctRitRfrom
GroundingRelectrodeRsystemR-
RCORRECTRANSWERInRgeneral,RallRtheRfollowingRelectrodesRthatRareRpresentRmustRbeRbondedRtog
etherRtoRform
steelRorRironRmustRbeRatRleastR1/4"Rthick
copperRneedRonlyRbeR0.06"R(1.5mm)RthickR-
RCORRECTRANSWERhowRthickRmustRplatesRofRironRorRsteel
howRthickRmustRnonferrousRmetalRlikeRcopperRbe
20RohmsRorRlessR-
RCORRECTRANSWERRod,Rpipe,RandRplateRelectrodesRmustRhaveRaRresistanceRtoRgroundRof__.RIfRnot
,RtheyRmustRbeRaugmentedRbyRanRadditionalRelectrodeRspacedRnotRlessRthanR6'RfromRtheRfirst
atRlestR6'RapartR-RCORRECTRANSWERgroundingRelectrodesRmustRbeRspaced
metalRundergroundRgasRpipingRsystemsR-
RCORRECTRANSWERmayRnotRbeRusedRasRaRgroundingRelectrode
GROUNDING AND BONDING GRADE A+
COMPLETE EXAM QUESTIONS AND
100% VERIFIED ANSWERS (2026/2027)
PASS GUARANTEE
NECRArticleR250R-
RCORRECTRANSWERIsRtheRprimaryRgoverningRarticleRforRtheRproperRuseRandRinstallationRofRground
ingRandRbonding
shortRcircuitR-
RCORRECTRANSWERaRconductingRconnection,RwhetherRintentionalRorRaccidental,RbetweenRanyRofR
theRconductorsRofRanRelectricalRsystem,RwhetherRitRisRfromRline-to-lineRorRfromRline-to-neutral
GroundRfaultR-
RCORRECTRANSWERasRdefinedRinRNECRArticleR100,RisRanRunintentional,RelectricallyRconductingRcon
nectionRbetweenRanRungroundedRconductorRofRanRelectricalRcircuitRandRtheRnormallyRnoncurrent-
carryingRconductors
equipmentRgroundingRconductorR-
RCORRECTRANSWERtheRconductiveRpathRusedRtoRconnectRtheRnoncurrent-
carryingRmetalRpartsRofRequipment,Rraceways,RandRotherRenclosuresRtoRtheRsystemRgroundedRcon
ductor,RtheRgroundingRelectrodeRconductor,RorRboth.
GroundingRsystemsRlessRthanR50vR-
RCORRECTRANSWERgroundingRisRrequiredRinRtheRfollowingRsituationRwhereRsuppliedRbyRtransform
ersRifRtheRsupplyRvoltageRtoRtheRtransformerRexceedsR150vRtoRground
GroundingRACRsystemsRoverR1kVR-
RCORRECTRANSWERmustRbeRgroundedRifRtheyRsupplyRmobileRorRportableRequipmentRasRcoveredRi
nRNECRSectionR250.188
, 5AR(R50-45=5)R-
RCORRECTRANSWERaRsingleRphaseRsystemRhasRtwoRlegs,RLegRARandRLegRB.RLegRARisRcarryingR50ARan
dRlegRBRisRcarryingR45A,RtheRcurrentRcarriedRbyRtheRneutralRisRwhat
-Lightning,R
-voltageRsurgesRhigherRthanRthatRforRwhichRtheRcircuitRisRdesignedR-
RCORRECTRANSWERaRgroundedRsystemRmustRlimitRtheRvoltageRonRtheRelectricalRsystemRandRprote
ctRitRfrom
GroundingRelectrodeRsystemR-
RCORRECTRANSWERInRgeneral,RallRtheRfollowingRelectrodesRthatRareRpresentRmustRbeRbondedRtog
etherRtoRform
steelRorRironRmustRbeRatRleastR1/4"Rthick
copperRneedRonlyRbeR0.06"R(1.5mm)RthickR-
RCORRECTRANSWERhowRthickRmustRplatesRofRironRorRsteel
howRthickRmustRnonferrousRmetalRlikeRcopperRbe
20RohmsRorRlessR-
RCORRECTRANSWERRod,Rpipe,RandRplateRelectrodesRmustRhaveRaRresistanceRtoRgroundRof__.RIfRnot
,RtheyRmustRbeRaugmentedRbyRanRadditionalRelectrodeRspacedRnotRlessRthanR6'RfromRtheRfirst
atRlestR6'RapartR-RCORRECTRANSWERgroundingRelectrodesRmustRbeRspaced
metalRundergroundRgasRpipingRsystemsR-
RCORRECTRANSWERmayRnotRbeRusedRasRaRgroundingRelectrode