Electrical Theory 5th 1st Final Exam
With Graded A+
Which fITE ftier fsite(s) fis/are ffault ftolerant? f- fCORRECT✅✅Tier f4
When futility fpower fis flost for fa fsever fdisturbance foccurs, fthe fUPS f___________ fwill
fshut fdown. f- fCORRECT✅✅Input fsection
In fthe f________ fUPS fthe finverter fis falways fon fand fconnected fto fthe foutput fof fthe
fUPS. f- fCORRECT✅✅Line finteractive
The feasiest fbattery ftype fto fservice fis f__________. f- fCORRECT✅✅Battery fcartridge
fwith finternal flead facid fbatteries
A f_________ fis fan felement fof fthe felectrical fdistribution fsystem fthat fat fsome fpoint fwill
fcause fdowntime fif fa fmeans fto fby- fpass fit fis fnot fdeveloped fin fthe fsystem. f-
fCORRECT✅✅SPOF
Ground fpath fcontinuity fshould fbe ftested ffor f_________ fand fany fground fpath futilizing
fa fconduit fraceway fas fthe fconducting fpath fmust fhave fall fbolted for fscrewed
fconnections fchecked fand ftested. f- fCORRECT✅✅Low fimpedance
Large fflooded fcell fbattery finstallation fwill fusually frequire fextensive f__________ fand
fmay frequire fcell fchanges fwhich fare fa fspecialized ffunction frequiring ftraining fand
fcertification. f- fCORRECT✅✅Preventative fmaintenance
All fisolation ftransformers fhave fan finherent fphase fshift ffrom fprimary fto fsecondary fof
f__________ fwhich fwhen fused fin fby-pass fconfiguration fwould fcreate fa fpotentially
fdisruptive fphase fconflict fwhen fthe fUPS fwent fto fstatic fby-pass. f- fCORRECT✅✅30
fdegrees
PEM fis fa ftype fof ffuel fcell. fPEM fstands ffor f_________. f- fCORRECT✅✅Proton
fexchange fmembrane
The fbyproduct(s) fof ffuel fcells fis/are f__________. f- fCORRECT✅✅Water, fheat fand
felectricity
What fare fthe ftwo fclassifications ffor ffuel fcells fthat fprovide fAC fpower fas fan foutput? f-
fCORRECT✅✅Interactive ffuel fcell fsystem
What fwas fthe ffirst ftype fof fautomated fcontrol fsystem fused fto fcontrol fthe findoor
fenvironment fin fa fcommercial fbuilding? f- fCORRECT✅✅Pneumatic fcontrol fsystem
, _________ faccepts fa fcontrol fsignal fand fcauses fa fmechanical fmotion. f-
fCORRECT✅✅An factuator
A fhydroelectric-generating fplant fuses f__________ fto fgenerate felectricity. f-
fCORRECT✅✅Water fflow
An fovercurrent fprotective fdevice fprevents f_________ ffrom freaching fexcessively fhigh
ftemperatures, fdue fto fhigh fcurrents, fby fopening fthe fcircuit. f-
fCORRECT✅✅Conductors for fdevices
__________ fare fcaused fby floads fnear fthe fbeginning fof fa fpower fdistribution fsystem,
fincorrectly fwired ftransformer ftaps, fand flarge floads fbeing fturned foff. f-
fCORRECT✅✅Voltage fswells
What ftype fof fUPS fsystem fhas fhigh fefficiency, fsmall fsize, fand fis flower fin fcost fthan
fother ftypes fof fUPS fsystems f- fCORRECT✅✅Stand-by
________ fis fthe fintentional freduction fof felectrical fpower fto fa flamp fin forder fto freduce
fits flight foutput. f- fCORRECT✅✅Dimming
Ballasts fthat fare fbased fon finductors fare foften fcalled f__________ fballasts fbecause
fan finductor fis fa fcoil fof fwire fthat fcreates fa fmagnetic ffield, fwhich fresists fchanges fin
fthe fcurrent fflow fthrough fthe fcoil
. f- fCORRECT✅✅Magnetic
A(n) f____________ fis fan felectric flamp fthat fproduces flight fby fstriking fan felectrical farc
facross ftungsten felectrodes fhoused finside fan farc ftube. f- fCORRECT✅✅High
fintensity fdischarge flamp
_________ fare fthe fmost fcommon fform fof fautomatic flighting fcontrol fused fin fbuildings
. f- fCORRECT✅✅Occupancy fsensor
Instead fof fhaving fa fthird fterminal fused ffor felectronic fcontrol fsignals flike fmost
f__________, fphototransistors fuse flight fas fthe fcontrol finput. f-
fCORRECT✅✅Transistors
The f__________ ffeature fgradually fraises flight flevels fto fthe fdesired fbrightness. f-
fCORRECT✅✅Soft-on
_________ fswitching fis fa ftechnique fto fcontrol fgeneral flight flevels fby fswitching
findividual flamps for fgroups fof flamps fin fa fmulti-lamp ffixture fseparately. f-
fCORRECT✅✅Bi-level
Heating fand fcooling ffunctions fof fthe fHVAC fsystem frely fon fthe fbasic fprinciples fof
f___________ fand fheat ftransfer. f- fCORRECT✅✅Thermodynamics
With Graded A+
Which fITE ftier fsite(s) fis/are ffault ftolerant? f- fCORRECT✅✅Tier f4
When futility fpower fis flost for fa fsever fdisturbance foccurs, fthe fUPS f___________ fwill
fshut fdown. f- fCORRECT✅✅Input fsection
In fthe f________ fUPS fthe finverter fis falways fon fand fconnected fto fthe foutput fof fthe
fUPS. f- fCORRECT✅✅Line finteractive
The feasiest fbattery ftype fto fservice fis f__________. f- fCORRECT✅✅Battery fcartridge
fwith finternal flead facid fbatteries
A f_________ fis fan felement fof fthe felectrical fdistribution fsystem fthat fat fsome fpoint fwill
fcause fdowntime fif fa fmeans fto fby- fpass fit fis fnot fdeveloped fin fthe fsystem. f-
fCORRECT✅✅SPOF
Ground fpath fcontinuity fshould fbe ftested ffor f_________ fand fany fground fpath futilizing
fa fconduit fraceway fas fthe fconducting fpath fmust fhave fall fbolted for fscrewed
fconnections fchecked fand ftested. f- fCORRECT✅✅Low fimpedance
Large fflooded fcell fbattery finstallation fwill fusually frequire fextensive f__________ fand
fmay frequire fcell fchanges fwhich fare fa fspecialized ffunction frequiring ftraining fand
fcertification. f- fCORRECT✅✅Preventative fmaintenance
All fisolation ftransformers fhave fan finherent fphase fshift ffrom fprimary fto fsecondary fof
f__________ fwhich fwhen fused fin fby-pass fconfiguration fwould fcreate fa fpotentially
fdisruptive fphase fconflict fwhen fthe fUPS fwent fto fstatic fby-pass. f- fCORRECT✅✅30
fdegrees
PEM fis fa ftype fof ffuel fcell. fPEM fstands ffor f_________. f- fCORRECT✅✅Proton
fexchange fmembrane
The fbyproduct(s) fof ffuel fcells fis/are f__________. f- fCORRECT✅✅Water, fheat fand
felectricity
What fare fthe ftwo fclassifications ffor ffuel fcells fthat fprovide fAC fpower fas fan foutput? f-
fCORRECT✅✅Interactive ffuel fcell fsystem
What fwas fthe ffirst ftype fof fautomated fcontrol fsystem fused fto fcontrol fthe findoor
fenvironment fin fa fcommercial fbuilding? f- fCORRECT✅✅Pneumatic fcontrol fsystem
, _________ faccepts fa fcontrol fsignal fand fcauses fa fmechanical fmotion. f-
fCORRECT✅✅An factuator
A fhydroelectric-generating fplant fuses f__________ fto fgenerate felectricity. f-
fCORRECT✅✅Water fflow
An fovercurrent fprotective fdevice fprevents f_________ ffrom freaching fexcessively fhigh
ftemperatures, fdue fto fhigh fcurrents, fby fopening fthe fcircuit. f-
fCORRECT✅✅Conductors for fdevices
__________ fare fcaused fby floads fnear fthe fbeginning fof fa fpower fdistribution fsystem,
fincorrectly fwired ftransformer ftaps, fand flarge floads fbeing fturned foff. f-
fCORRECT✅✅Voltage fswells
What ftype fof fUPS fsystem fhas fhigh fefficiency, fsmall fsize, fand fis flower fin fcost fthan
fother ftypes fof fUPS fsystems f- fCORRECT✅✅Stand-by
________ fis fthe fintentional freduction fof felectrical fpower fto fa flamp fin forder fto freduce
fits flight foutput. f- fCORRECT✅✅Dimming
Ballasts fthat fare fbased fon finductors fare foften fcalled f__________ fballasts fbecause
fan finductor fis fa fcoil fof fwire fthat fcreates fa fmagnetic ffield, fwhich fresists fchanges fin
fthe fcurrent fflow fthrough fthe fcoil
. f- fCORRECT✅✅Magnetic
A(n) f____________ fis fan felectric flamp fthat fproduces flight fby fstriking fan felectrical farc
facross ftungsten felectrodes fhoused finside fan farc ftube. f- fCORRECT✅✅High
fintensity fdischarge flamp
_________ fare fthe fmost fcommon fform fof fautomatic flighting fcontrol fused fin fbuildings
. f- fCORRECT✅✅Occupancy fsensor
Instead fof fhaving fa fthird fterminal fused ffor felectronic fcontrol fsignals flike fmost
f__________, fphototransistors fuse flight fas fthe fcontrol finput. f-
fCORRECT✅✅Transistors
The f__________ ffeature fgradually fraises flight flevels fto fthe fdesired fbrightness. f-
fCORRECT✅✅Soft-on
_________ fswitching fis fa ftechnique fto fcontrol fgeneral flight flevels fby fswitching
findividual flamps for fgroups fof flamps fin fa fmulti-lamp ffixture fseparately. f-
fCORRECT✅✅Bi-level
Heating fand fcooling ffunctions fof fthe fHVAC fsystem frely fon fthe fbasic fprinciples fof
f___________ fand fheat ftransfer. f- fCORRECT✅✅Thermodynamics
