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ELECTRICIAN NCCER QUESTIONS AND ANSWERS
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ELECTRICIAN NCCER QUESTIONS AND ANSWERS
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NCCER STUDY GUIDE QUESTIONS ANDANSWERS
Whenaisanonmetallic-steathedacableauseda-aans✔✔Inaaaresidentialawiringasystem
Phasesaofaresidentialaelectricalawiringaincludea-
aans✔✔Roughain,aTrimaout,aTestingaandaTroubleshooting
Whatatwoagroupsaareaindustrialaelectriciansasplitaintoa-
aans✔✔Installersaandamaintenanceapersonal
Howamanyahoursaofaonajobalearningaarearequiredaforaanaapprenticeshipaprogramaeachaye
ara-aans✔✔2,000ahours
ACaVoltageaTagaColorsaClassa00a-aans✔✔Beigeataga500avolts
ACaVoltageaTagaColorsaClassa0a-aans✔✔Redataga1,000avolts
ACaVoltageaTagaColorsaClassa1a-aans✔✔Whiteataga7,500avolts
ACaVoltageaTagaColorsaClassa2a-aans✔✔Yellowataga17,000avolts
ACaVoltageaTagaColorsaClassa3a-aans✔✔Greenataga26,500avolts
ACaVoltageaTagaColorsaClassa4a-aans✔✔Orangeataga36,000avolts
Replacingafusesaisaanaimportantauseaofa-aans✔✔Aahotastick
Asbestosabannedaina1978,ayouaneedatoaassumeaanyabuildingaconstructedabeforea1980aha
sa-aans✔✔Asbestosainait
HowamanyawattsadoesaoneaHorsepowerahavea-aans✔✔746awatts
Anaelectricalacircuitaataminimumacontainsaaa-aans✔✔Source,aload,aandaswitch
Protonaisatheatypeaofasub-atomaparticleawithaaa-aans✔✔Positiveacharge
, EMFaisaanotheratermausedafora-aans✔✔Voltage
Electricachargeaisameasuredaina-aans✔✔Coulombs
I=E/Ra(current)a=a(voltage)a/a(resistance)a-
aans✔✔theacurrentainaaacircuitaequalsatheavoltageadifferenceadividedabyathearesistance
R=E/Ia(resistance)a=a(voltage)a/a(current)a-
aans✔✔Thearesistanceaofaaacircuitaisaequalatoatheavoltageaappliedatoatheacircuitadividedaby
atheacurrentainaaacircuit
E=IxR=IRa(voltage)=a(current)x(resistance)a-
aans✔✔Theaappliedavoltageatoaaacircuitaisaequalatoatheaproductaofatheacurrentaandathearesi
stanceaofatheacircuit
Theafourthabandaonaaaresistorarepresentsa-aans✔✔Tolerance
Clamp-onaampameteraisausedatoa-aans✔✔Measureaelectricalacurrent
Currentameasuredainaamperesa-aans✔✔Isatheaflowaofaelectronsainaaacircuit
Oneavoltaisatheapotentialadifferenceabetweenatwoapointsaforawhichaoneacoulombaofaelectric
ityawilladoaonea_______aofawork.a-aans✔✔Joule
Voltageaisameasuredawithaaa-aans✔✔voltmeter
Oneavoltaappliedaacrossaoneaohmaofaresistanceacausesaaacurrentaflowaofaonea_______.a-
aans✔✔ampere
Ewaldaisatheaforcearequiredatoaproduceaaacurrentaofaoneaampereathroughaaaresistanceaofa-
aans✔✔1aohm
WhatadoaCoulombsameasure?a-aans✔✔electricacharge
Electronsaisatheadrivingaforceathatamakesacurrentaflowainaaa-aans✔✔Circuit
Wattsaisatheabasicaunitaofameasurementafora-aans✔✔Electricalapower
Theaprotonaisatheasmallestaparticleaofaanaelementathatawillastillaretainathea-
aans✔✔Propertiesaofathataelement
Theanucleusaisatheacenteraofaana-aans✔✔Atom
Whataareaprotonsaandaneutronsa-aans✔✔Electricallyapositiveaandaneutralaparticles
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