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Exam (elaborations)

HVAC Excellence Study Guide) for Electric Test Questions and Answers 2025

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HVAC Excellence Study Guide) for Electric Test Questions and Answers 2025

Institution
HVAC Excellence - ELECTRICITY
Module
HVAC Excellence - ELECTRICITY








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Institution
HVAC Excellence - ELECTRICITY
Module
HVAC Excellence - ELECTRICITY

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Uploaded on
May 9, 2025
Number of pages
2
Written in
2024/2025
Type
Exam (elaborations)
Contains
Questions & answers

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  • hvac excellence study guide for electric test que

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HVAC Excellence Study Guide) for Electric
Test Questions and Answers 2025
LawAofAelectricAstatesAthat:A-ACORRECTAANSWERSA-
LikeAchargesArepel,AandAoppositesAattract
WhenAtestingAaAsupplyAvoltageAaAmaximumAvariationAallowedAisAtypically:A-
ACORRECTAANSWERSA-plusAorAminusAfiveApercent

AAVoltageATesterAreadsAzeroAwhenAthereAis:A-ACORRECTAANSWERSA-
noApotentialAdifference
AnAAmmeterA-ACORRECTAANSWERSA-
IsAusedAtoAmeasureAtheAquantityAandAintensityAofAelectronsAflowingAinsideAaAwire,AorAthrou
ghAaAload
WhenAwillAanAammeterAhaveAanAindication/readingAofAzero.A-ACORRECTAANSWERSA-
WhenAitAisAclampedAaroundAtwoAwiresAfeedingAaAloadAdevice,AtheAmagneticAfieldsAwillAcanc
elAeachAotherAout.
Resistance:A-ACORRECTAANSWERSA-
refersAtoAanythingAthatAoffersAoppositionAtoAtheAflowAofAelectrons.
AAcircuitAwithoutAresistanceAtoAcontrolAtheAelectronAflowAisAconsidered:A-
ACORRECTAANSWERSA-shorted

ReadingAaAVOMA(Volt-ohm-meter)AtheAdifferenceAoccursAacrossA-
ACORRECTAANSWERSA-theAswitch

IncreasedAresistanceA________AamperageA,AandAlowerAresistanceA________Aamperage.A
(OHM'sALaw)A-ACORRECTAANSWERSA-decreases,Aincreases
WithAaAfixedAresistance,AhigherAvoltageA_________AamperageAandAlowerAvoltageA______A
amperage.
A(OHM'sALaw)A-ACORRECTAANSWERSA-increases,Adecreases

SymbolAforAImpedanceA-ACORRECTAANSWERSA-"Z"
OhmmetersA-ACORRECTAANSWERSA-
MeasureAelectronAmovementAcalibratedAtoAaAvoltageAsuppliedAbyAtheAmetersAbattery,AtoAc
heckAforAitsAresistance
ContinuityA-ACORRECTAANSWERSA-AAcompleteApathAforAelectronAflow
OpenACircuitAcanAhaveAan:A-ACORRECTAANSWERSA-
OpenASwitch,ABlownAFuse,ABrokenAWire
ShortACircuitA-ACORRECTAANSWERSA-IsAaAcompleteAcircuitAwhereAnoneAshouldAexist
TheAohmmeterAdetectsAaAshortAcircuitAby:A-ACORRECTAANSWERSA-
indicatingAzeroAresistance
AAWatt-meterAisAnormallyAlocatedAatAthe:A-ACORRECTAANSWERSA-
powerAentryAtoAaAbuilding
AAThermostatAisAa:A-ACORRECTAANSWERSA-temperatureAsensitiveAswitch
AAResidentialAAirAconditioningAsystemAthermostatAcontrolsAthreeAmajorAcomponents:A-
ACORRECTAANSWERSA-Compresser,ACondenserAFan,AEvaporatorAfanAmotorAorAblower
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