ASVAB Electronics Questions with Correct Answers 2025

ASVAB Electronics Questions with
Correct Answers 2025
Electricitya-acorrectaanswers-
generalatermaforatheavarietyaofaphenomenaaresultingafromatheapresenceaandaflowaofaelectric
acurrent

Volts
Amperesa(amps)
Ohmsa-acorrectaanswers-3awaysaelectricityaisameasured
Voltsa-acorrectaanswers-measureatheadifferenceaofapotentialabetweena2apoints
Amperesa(amps)A-acorrectaanswers-
measureatheanumberaofaelectronsathatamoveapastaaaspecificapointaina1aseconda
(i.e.aelectricalacurrents)
Ohmsa-acorrectaanswers-
measurearesistance,aincludingaanythingathatacouldalimitatheaflowaofaelectrons
Currenta-acorrectaanswers-
electricala___aoccursawhenaelectronsamoveafromaoneaplaceatoaanother.
Conductors
(e.g.Acopper,Asilver,Awater)A-acorrectaanswers-
aasubstance,Abody,aoradeviceathataconductsaelectricity;aallowsatheaelectronsatoamoveafreely
.
Insulatorsa
(e.g.Arubber,Awood)A-acorrectaanswers-
aamaterialaofasuchalowaconductivityathatadoesanotaeasilyaallowatheaflowaofaelectricalacurrentat
oapassathroughait;adiscouragesaelectricalacurrent
Watta-acorrectaanswers-
thisameasuresapower,athearateaatawhichaelectricalaenergyaisaconsumedaoratransformedaintoa
anotheratypeaofaenergy,asuchaasalightaoraheat
Powera-acorrectaanswers-
thearateaatawhichaelectricalaenergyaisaconsumedaoratransformedaintoaanotheratypeaofaenerg
y,asuchaasalightaoraheat
Watt-houra-acorrectaanswers-
thisaisatheaamountaofaenergyausedaina1ahouraataaarateaofa1awatt.
Kilowatt-houra-acorrectaanswers-
theaamountaofaenergyausedaina1ahouraataaarateaofa1,000Awatts(i.e.1-kilowatt)
Truea-acorrectaanswers-trueaorafalse
Mostaelectricityaisameasuredainakilowatt-hours
Wattageaxatimea(expressedainahours)A-acorrectaanswers-toafindawatt-
hoursamultiplya___abya___.
10Akilowatt-hoursa-acorrectaanswers-howamanyakilowatt-
hoursaisaenoughaenergyatoarunaaa10,000-wattaspeakerasystemafora1ahour?
2ahoursa-acorrectaanswers-10Akilowatt-hoursaisaenoughaenergyatoarunaaa5,000-
wattaairaconditioneraforahowalong?

, 10ahoursa-acorrectaanswers-10Akilowatt-hoursaisaenoughaenergyatoarunaaa1,000-
wattawaffleaironaforahowalong?
Circuita-acorrectaanswers-theapathaofaanaelectricalacurrent
Opena-acorrectaanswers-
whenathereaisaliterallyaanaopenaspaceainatheacircuitathataprohibitsacurrentafromaflowing
Shorta-acorrectaanswers-
whenatheaopenaspaceaofaaacircuitahasabeenaclosedatoaallowacurrentatoaflow
Voltagea-acorrectaanswers-theadifferenceaofatheapressureabetweena2apointsainaaacircuit
(sometimesacalledavoltageadropaoradifferenceaofapotential)
Truea-acorrectaanswers-trueaorafalse
Toaseeawhatatheavoltageaisaanywhereainaaacircuit,ayouahaveatoacompareatheavoltageaatathata
pointatoaground
Ground
(e.g.abaseaofaaalamp,achassisaofaaacar)A-acorrectaanswers-
anyapartaofaaacircuita(oraotheraobjectathatahasaelectricityarunningathroughait)athatameasuresa0
avolts

Voltmeteraoramultimetera-acorrectaanswers-measuresavoltageainaaacircuit
Voltmetera-acorrectaanswers-
anainstrumentausedaforameasuringaelectricalapotentialadifferenceabetweenatwoapointsainaana
electricacircuita(i.e.Avoltage)
Aavoltmeterahasa2aleads.atoameasureavoltage,ayouaplaceaonealeadasomewhereainatheacircuit
aandaonealeadaataanotheralocationainatheacircuit.atheavoltmeteratellsayouawhatatheavoltageaisa

betweenathosea2apoints.A-acorrectaanswers-howatoauseaaavoltmeter:
Cella-acorrectaanswers-
aastorageacompartmentaforaelectricityainaaabatteryathatahasaaaspecificavoltage.
Truea-acorrectaanswers-trueaorafalse
Youacanafigureaoutatheanumberaofacellsaaabatteryahasabyadividingatheavoltageaofatheabatterya
byatheavolts.
Electricalacurrenta-acorrectaanswers-theaflowa(rateaofaflow)aofaelectronsainaaaconductor
Coulombsa(C),awhichameasureacharge.A-acorrectaanswers-
currentaflowacanabeaexpressedainatermsaofa___.
Coulomba-acorrectaanswers-
theaamountaofaelectricityaprovidedabyaaacurrentaofa1aampereaflowingafora1asecond.
Truea-acorrectaanswers-trueaorafalse
Ifa1acoulomba(abouta6,241,500,000,000,000,000Aelectrons)aflowsapastaaaspecifiedapointaina
1asecond,Athat'sAaAflowArateAofA1AampereA(amp,aabbreviatedaa).
Ammetersa-acorrectaanswers-measureatheaflowaofacurrentathroughaaacircuit
Truea-acorrectaanswers-trueaorafalse
Typicallyacurrentaisatiny,asoasmallathatait'sameasuredainamilliamperes;a1amilliampereaisaone-
thousandthaofaanaampere.
Circuitabreakera-acorrectaanswers-
aadeviceathataautomaticallyainterruptsatheaelectricalacurrent.
Trueaorafalsea-acorrectaanswers-trueaorafalse
Sometimesaaacircuitamustabeaopenedainaorderatoaaddaoraremovearesistance.ainaotherawords,
atheaflowaofaelectricityamustabeainterruptedainaorderatoaphysicallyachangeathearesistance.