PSI JOURNEYMAN ONLINE PRACTICE
TEST QUESTIONS WITH VERIFIED
ANSWERS
A ifitting iis ia ipart iof ia iwiring isystem ithat iis iintended iprimarily ito iperform iwhich itype iof
ifunction? i- i✔✔mechanical
When ithe idisconnecting imeans iof ia itransformer iis ilocated iremotely iit imust ibe? i-
i✔✔lockable
If iinstalled iand irouted ion ithe ioutside iof ia iraceway, ithe ilength iof ithe iequipment
ibonding ijumper ishall inot iexceed ihow imany ifeet? i- i✔✔6 ifeet
What iis ian iaskarel? i- i✔✔a igroup iof inonflammable isynthetic ichlorinated ihydrocarbons
iused ias ielectrical iinsulating imedia
In iwhich ilocations iare ithe iinstallation iof iflexible imetal iconduit ipermitted? i-
i✔✔concealed ilocations
Unlisted inonconductive ioutside iplant ioptical ifiber icables ishall inot ibe ipermitted ito ibe
iinstalled iin iwhich itype iof iraceways? i- i✔✔flexible imetal iconduit.
Where ithe inegative ipolarity iof ia idc isystem idoes inot iserve ias ithe iconnection ipoint ifor
ithe igrounded iconductor, iwhich icolor ifinish ican ibe iused ito iidentify ithe inegative
iungrounded iconductor? i- i✔✔black
Where ia ifeeder isupplies icontinuous iloads ior iany icombination iof icontinuous iand
inoncontinuous iloads, ithe iminimum ifeeder iconductor isize ishall ihave ian iallowable
iampacity inot iless ithan ithe inoncontinuous iload iplus iwhat ipercentage iof ithe
icontinuous iload? i- i✔✔125%
Where ian iac isystem iis igrounded iat iany ipoint, ithe igrounded iconductors ishall ibe
irouted iwith ithe iungrounded iconductors ito ieach iservice idisconnecting imeans iand
ishall ibe iconnected ito ieach idisconnecting imeans igrounded iconductors iterminal ior ibus
ifor ian iac isystem ioperating iat ihow imany ivolts? i- i✔✔1,000 ivolts ior iless
What iis ithe imaximum ispacing ifor isupports iof i10 iAWG icopper iconductors ilocated iin ia
ivertical iraceway? i- i✔✔100 ifeet
What iis ithe imaximum iovercurrent iprotection ifor ia i10 iAWG icopper iconductor? i- i✔✔30
iamperes
A icircuit ibreaker idoes inot ihave ian iinterrupter irating ishown ion iit. iWhat iis ithe
iinterrupter irating iof ithis icircuit ibreaker? i- i✔✔5,000 iamperes
Dry-type itransformers irated iover iwhich ivoltage ishall ibe iinstalled iin ia ivault? i-
i✔✔35,000 ivolts
A ipanelboard ifor ia imobile ihome ishall ibe irated inot iless ithan iwhich iof ithe ifollowing? i-
i✔✔50 iamperes
An ielectrical iappliance iis irated iat i1,500 iwatts, iand iis iconnected ito i120 ivolts. iWhat iis
ithe iresistance iassociated iwith ithis iappliance? i- i✔✔9.6 iohms
, High-impedance igrounded ineutral isystems iin iwhich ia igrounding iimpedance ilimits ithe
iground ifault icurrent ito ia ilow ivalue ishall ibe ipermitted ifor iwhich itype iof isystem? i-
i✔✔3-phase iac isystems iof i480 ivolts ito i1,000 ivolts
Where ithe ipositive ipolarity iof ia idc isystem idoes inot iserve ias ithe iconnection ifor ithe
igrounded iconductor, iwhich icolor ifinish ican ibe iused ito iidentify ithe ipositive
iungrounded iconductor? i- i✔✔red
Information itechnology iequipment ishall ibe ipermitted ito ibe iconnected ito ia ibranch
icircuit iby ia ipower-supply icord iwith ia imaximum ilength iof ihow imany ifeet? i- i✔✔15 ifeet
What iis ithe imaximum idistance ithat ithe iemergency icontrols ifor ian iattended iself-
service imotor ifuel idispensing ifacility ishall ibe ilocated ifrom ithe idispensers? i- i✔✔100
ifeet
What iis ithe igreatest iroot-mean-square i(effective) idifference iof ipotential ibetween iany
itwo iconductors iof ia icircuit idefined ias? i- i✔✔voltage
A imotor icontroller idisconnecting imeans ishall ibe ipermitted ito ibe iout iof isight iof ithe
icontroller ifor imotor icircuits iover ihow imany ivolts? i- i✔✔1,000 ivolts, inominal
The ifollowing imeasurements iare itaken ion ia i3-phase iload: ipower iused iis i11,250
iwatts, i208 ivolts iapplied, iand icurrent iis i35 iamperes iper iphase ileg. iWhat iis ithe ipower
ifactor iof ithe iload? i- i✔✔89%
Alternating-current isystems iof iless ithan i50 ivolts ishall ibe igrounded iwhere isupplied iby
itransformers, iif ithe itransformer isupply isystem iexceeds iwhich iof ithe ifollowing? i-
i✔✔150 ivolts ito iground
In ia ifire ialarm isystem, isingle iconductors ishall inot ibe ismaller ithan? i- i✔✔18 iAWG
What iis ithe imaximum ivoltage idrop ifor iany ibranch icircuit, iseparately iderived isystem,
ioperating iat i120 ivolts iline-to-line iand i60 ivolts ito iground, iserving isensitive ielectronic
iequipment? i- i✔✔1.5%
In iwhich iapplication iis ithe iinstallation iof iUF icable ipermitted? i- i✔✔in iphotovoltaic
isystems
Equipment igrounding iconductors iof ibare ior iinsulated ialuminum ior icopper-clad
ialuminum ishall inot ibe iterminated iwithin ihow imany iinches iof ithe iearth? i- i✔✔18
iinches
Where ipracticable, iwhat iis ithe iminimum iamount iof iseparation ithat ishall ibe imaintained
ibetween icommunications iwires iand icables ion ibuildings iand ilightning iconductors? i-
i✔✔6 ifeet
The icombined icross-sectional iarea iof iall iconductors ior icables ishall inot iexceed iwhat
ipercentage iof ithe iinterior icross isectional iarea iof ithe iunderfloor iraceway? i- i✔✔40%
What iis ithe iminimum irating ifor ia istandard ilampholder ithat ishall ibe iused ifor icircuits
iand iequipment ioperating iat iless ithan i50 ivolts? i- i✔✔660 iwatts
Lamp itie iwires, imounting iscrews, iclips, iand idecorative ibands ion iglass ishall inot ibe
irequired ito ibe igrounded iif ispaced iat ileast ihow ifar ifrom ithe ilamp iterminals? i- i✔✔1
i1/2 iinches
Disregarding iexceptions, iwhat iis ithe iminimum isize icopper-clad ialuminum
iunderground iservice iconductor ipermitted? i- i✔✔6 iAWG
Where iis iAC icable iNOT ipermitted ito ibe iused? i- i✔✔in idamp ilocations
How ifar ishall ithe iwork ispace iextend ifrom ithe igrade, ifloor, ior iplatform ifor iequipment
ithat iis i60 iinches iin iheight? i- i✔✔78 iinches
TEST QUESTIONS WITH VERIFIED
ANSWERS
A ifitting iis ia ipart iof ia iwiring isystem ithat iis iintended iprimarily ito iperform iwhich itype iof
ifunction? i- i✔✔mechanical
When ithe idisconnecting imeans iof ia itransformer iis ilocated iremotely iit imust ibe? i-
i✔✔lockable
If iinstalled iand irouted ion ithe ioutside iof ia iraceway, ithe ilength iof ithe iequipment
ibonding ijumper ishall inot iexceed ihow imany ifeet? i- i✔✔6 ifeet
What iis ian iaskarel? i- i✔✔a igroup iof inonflammable isynthetic ichlorinated ihydrocarbons
iused ias ielectrical iinsulating imedia
In iwhich ilocations iare ithe iinstallation iof iflexible imetal iconduit ipermitted? i-
i✔✔concealed ilocations
Unlisted inonconductive ioutside iplant ioptical ifiber icables ishall inot ibe ipermitted ito ibe
iinstalled iin iwhich itype iof iraceways? i- i✔✔flexible imetal iconduit.
Where ithe inegative ipolarity iof ia idc isystem idoes inot iserve ias ithe iconnection ipoint ifor
ithe igrounded iconductor, iwhich icolor ifinish ican ibe iused ito iidentify ithe inegative
iungrounded iconductor? i- i✔✔black
Where ia ifeeder isupplies icontinuous iloads ior iany icombination iof icontinuous iand
inoncontinuous iloads, ithe iminimum ifeeder iconductor isize ishall ihave ian iallowable
iampacity inot iless ithan ithe inoncontinuous iload iplus iwhat ipercentage iof ithe
icontinuous iload? i- i✔✔125%
Where ian iac isystem iis igrounded iat iany ipoint, ithe igrounded iconductors ishall ibe
irouted iwith ithe iungrounded iconductors ito ieach iservice idisconnecting imeans iand
ishall ibe iconnected ito ieach idisconnecting imeans igrounded iconductors iterminal ior ibus
ifor ian iac isystem ioperating iat ihow imany ivolts? i- i✔✔1,000 ivolts ior iless
What iis ithe imaximum ispacing ifor isupports iof i10 iAWG icopper iconductors ilocated iin ia
ivertical iraceway? i- i✔✔100 ifeet
What iis ithe imaximum iovercurrent iprotection ifor ia i10 iAWG icopper iconductor? i- i✔✔30
iamperes
A icircuit ibreaker idoes inot ihave ian iinterrupter irating ishown ion iit. iWhat iis ithe
iinterrupter irating iof ithis icircuit ibreaker? i- i✔✔5,000 iamperes
Dry-type itransformers irated iover iwhich ivoltage ishall ibe iinstalled iin ia ivault? i-
i✔✔35,000 ivolts
A ipanelboard ifor ia imobile ihome ishall ibe irated inot iless ithan iwhich iof ithe ifollowing? i-
i✔✔50 iamperes
An ielectrical iappliance iis irated iat i1,500 iwatts, iand iis iconnected ito i120 ivolts. iWhat iis
ithe iresistance iassociated iwith ithis iappliance? i- i✔✔9.6 iohms
, High-impedance igrounded ineutral isystems iin iwhich ia igrounding iimpedance ilimits ithe
iground ifault icurrent ito ia ilow ivalue ishall ibe ipermitted ifor iwhich itype iof isystem? i-
i✔✔3-phase iac isystems iof i480 ivolts ito i1,000 ivolts
Where ithe ipositive ipolarity iof ia idc isystem idoes inot iserve ias ithe iconnection ifor ithe
igrounded iconductor, iwhich icolor ifinish ican ibe iused ito iidentify ithe ipositive
iungrounded iconductor? i- i✔✔red
Information itechnology iequipment ishall ibe ipermitted ito ibe iconnected ito ia ibranch
icircuit iby ia ipower-supply icord iwith ia imaximum ilength iof ihow imany ifeet? i- i✔✔15 ifeet
What iis ithe imaximum idistance ithat ithe iemergency icontrols ifor ian iattended iself-
service imotor ifuel idispensing ifacility ishall ibe ilocated ifrom ithe idispensers? i- i✔✔100
ifeet
What iis ithe igreatest iroot-mean-square i(effective) idifference iof ipotential ibetween iany
itwo iconductors iof ia icircuit idefined ias? i- i✔✔voltage
A imotor icontroller idisconnecting imeans ishall ibe ipermitted ito ibe iout iof isight iof ithe
icontroller ifor imotor icircuits iover ihow imany ivolts? i- i✔✔1,000 ivolts, inominal
The ifollowing imeasurements iare itaken ion ia i3-phase iload: ipower iused iis i11,250
iwatts, i208 ivolts iapplied, iand icurrent iis i35 iamperes iper iphase ileg. iWhat iis ithe ipower
ifactor iof ithe iload? i- i✔✔89%
Alternating-current isystems iof iless ithan i50 ivolts ishall ibe igrounded iwhere isupplied iby
itransformers, iif ithe itransformer isupply isystem iexceeds iwhich iof ithe ifollowing? i-
i✔✔150 ivolts ito iground
In ia ifire ialarm isystem, isingle iconductors ishall inot ibe ismaller ithan? i- i✔✔18 iAWG
What iis ithe imaximum ivoltage idrop ifor iany ibranch icircuit, iseparately iderived isystem,
ioperating iat i120 ivolts iline-to-line iand i60 ivolts ito iground, iserving isensitive ielectronic
iequipment? i- i✔✔1.5%
In iwhich iapplication iis ithe iinstallation iof iUF icable ipermitted? i- i✔✔in iphotovoltaic
isystems
Equipment igrounding iconductors iof ibare ior iinsulated ialuminum ior icopper-clad
ialuminum ishall inot ibe iterminated iwithin ihow imany iinches iof ithe iearth? i- i✔✔18
iinches
Where ipracticable, iwhat iis ithe iminimum iamount iof iseparation ithat ishall ibe imaintained
ibetween icommunications iwires iand icables ion ibuildings iand ilightning iconductors? i-
i✔✔6 ifeet
The icombined icross-sectional iarea iof iall iconductors ior icables ishall inot iexceed iwhat
ipercentage iof ithe iinterior icross isectional iarea iof ithe iunderfloor iraceway? i- i✔✔40%
What iis ithe iminimum irating ifor ia istandard ilampholder ithat ishall ibe iused ifor icircuits
iand iequipment ioperating iat iless ithan i50 ivolts? i- i✔✔660 iwatts
Lamp itie iwires, imounting iscrews, iclips, iand idecorative ibands ion iglass ishall inot ibe
irequired ito ibe igrounded iif ispaced iat ileast ihow ifar ifrom ithe ilamp iterminals? i- i✔✔1
i1/2 iinches
Disregarding iexceptions, iwhat iis ithe iminimum isize icopper-clad ialuminum
iunderground iservice iconductor ipermitted? i- i✔✔6 iAWG
Where iis iAC icable iNOT ipermitted ito ibe iused? i- i✔✔in idamp ilocations
How ifar ishall ithe iwork ispace iextend ifrom ithe igrade, ifloor, ior iplatform ifor iequipment
ithat iis i60 iinches iin iheight? i- i✔✔78 iinches
