MECHANICAL & ELECTRICAL
STUDY GUIDE EXAM WITH VERIFIED
SOLUTIONS
Electrical cCurrent c- ccorrect canswers c-A cflow cof celectric ccharge cthrough ca
cmedium/conductor. cCharge ccarried cby celectrons, cbut cwhose cdirection cis
cdefined cby cpositive ccharged cparticles, cwhich care copposite celectrons.
Conductor/Medium c- ccorrect canswers c-carries celectrical ccurrent cfrom cthe csource
cto cthe cload cwithout cproviding ctoo cmuch cresistance cto ccurrent cflow. ceg: cWires,
cPower-lines
Insulators c- ccorrect canswers c-materials cthat cresist cthe cflow cof celectricity.
, Semiconductors c- ccorrect canswers c-materials cthat care cneither cgood cconductors
cnor cgood cinsulators.
Electric cCircuit c- ccorrect canswers c-a ccontinuous cpath calong cwhich can celectric
ccurrent ccan cflow.
Units cUsed cTo cDescribe cElectricity c- ccorrect canswers c-Voltage c(volts),
cAmperage c(amps), cOhms
Ampere c- ccorrect canswers c-A cunit cof celectrical ccurrent. cOne campere cis cthe
celectrical ccharge cof cone cCoulomb cthat cflows cin can celectrical ccircuit cin cone
csecond.
Ohms c- ccorrect canswers c-A cunit cof celectrical cresistance cwhere ceach cresistor
cis cdefined cby.
Electrical cPower c- ccorrect canswers c-Measured cin cwatts, cis cthe crate cwhich
celectric cenergy cis ctransferred cby can celectric ccircuit. cFormula cis cP c= cIV cwhere
cP cis cthe celectric cpower, cV cis cthe cpotential cdifference, cand cI cis cthe celectric
ccurrent.
Watt c- ccorrect canswers c-A cunit cof celectrical cpower cand cmeasures cthe
cconsumed cenergy c(joules) cper cunit cof ctime c(second). c1W c= c1 cjoule/1 csecond
What cIs cThe cStandard cBilling cFor cEnergy cConsumption c- ccorrect canswers c-
KiloWatt-Hour cOR( ckWh)
Power cSource c- ccorrect canswers c-A cBattery cor cGenerator
Load c- ccorrect canswers c-an celectrical ccomponent cor cgroup cof ccomponents cthat
cconsume celectricity. cExamples: cKitchen cappliances, cLamps, cLighting, cRadios,
Computers, cTelevision
Closed cCircuit c- ccorrect canswers c-an cuninterrupted cpath cthat callows ca
ccontinuous cflow cof ccurrent cthrough can celectrical ccircuit.
Open cCircuit c- ccorrect canswers c-Occurs cwhen cthe cpath cof cthe ccurrent cflow cof
celectricity cis cinterrupted c(such cas cif cthe cswitch cin ca ccircuit cis copened/turned
coff).
Short cCircuit c- ccorrect canswers c-Occurs cwhen can cunintended cshortcut
cdevelops cin ca ccircuit cthat cpermits ccurrent cflow cthrough can cunintentional cpath.
Series cCircuit c- ccorrect canswers c-the ccurrent cpasses cthrough cEach cComponent
cin cthe ccircuit cWithout cBranching coff cto cIndividual cComponents cin cthe ccircuit.
cExample: cIf cone clamp cgoes cout, cthe ccircuit cbecomes copen cand call clamps cgo
cout.
STUDY GUIDE EXAM WITH VERIFIED
SOLUTIONS
Electrical cCurrent c- ccorrect canswers c-A cflow cof celectric ccharge cthrough ca
cmedium/conductor. cCharge ccarried cby celectrons, cbut cwhose cdirection cis
cdefined cby cpositive ccharged cparticles, cwhich care copposite celectrons.
Conductor/Medium c- ccorrect canswers c-carries celectrical ccurrent cfrom cthe csource
cto cthe cload cwithout cproviding ctoo cmuch cresistance cto ccurrent cflow. ceg: cWires,
cPower-lines
Insulators c- ccorrect canswers c-materials cthat cresist cthe cflow cof celectricity.
, Semiconductors c- ccorrect canswers c-materials cthat care cneither cgood cconductors
cnor cgood cinsulators.
Electric cCircuit c- ccorrect canswers c-a ccontinuous cpath calong cwhich can celectric
ccurrent ccan cflow.
Units cUsed cTo cDescribe cElectricity c- ccorrect canswers c-Voltage c(volts),
cAmperage c(amps), cOhms
Ampere c- ccorrect canswers c-A cunit cof celectrical ccurrent. cOne campere cis cthe
celectrical ccharge cof cone cCoulomb cthat cflows cin can celectrical ccircuit cin cone
csecond.
Ohms c- ccorrect canswers c-A cunit cof celectrical cresistance cwhere ceach cresistor
cis cdefined cby.
Electrical cPower c- ccorrect canswers c-Measured cin cwatts, cis cthe crate cwhich
celectric cenergy cis ctransferred cby can celectric ccircuit. cFormula cis cP c= cIV cwhere
cP cis cthe celectric cpower, cV cis cthe cpotential cdifference, cand cI cis cthe celectric
ccurrent.
Watt c- ccorrect canswers c-A cunit cof celectrical cpower cand cmeasures cthe
cconsumed cenergy c(joules) cper cunit cof ctime c(second). c1W c= c1 cjoule/1 csecond
What cIs cThe cStandard cBilling cFor cEnergy cConsumption c- ccorrect canswers c-
KiloWatt-Hour cOR( ckWh)
Power cSource c- ccorrect canswers c-A cBattery cor cGenerator
Load c- ccorrect canswers c-an celectrical ccomponent cor cgroup cof ccomponents cthat
cconsume celectricity. cExamples: cKitchen cappliances, cLamps, cLighting, cRadios,
Computers, cTelevision
Closed cCircuit c- ccorrect canswers c-an cuninterrupted cpath cthat callows ca
ccontinuous cflow cof ccurrent cthrough can celectrical ccircuit.
Open cCircuit c- ccorrect canswers c-Occurs cwhen cthe cpath cof cthe ccurrent cflow cof
celectricity cis cinterrupted c(such cas cif cthe cswitch cin ca ccircuit cis copened/turned
coff).
Short cCircuit c- ccorrect canswers c-Occurs cwhen can cunintended cshortcut
cdevelops cin ca ccircuit cthat cpermits ccurrent cflow cthrough can cunintentional cpath.
Series cCircuit c- ccorrect canswers c-the ccurrent cpasses cthrough cEach cComponent
cin cthe ccircuit cWithout cBranching coff cto cIndividual cComponents cin cthe ccircuit.
cExample: cIf cone clamp cgoes cout, cthe ccircuit cbecomes copen cand call clamps cgo
cout.
