ELECTRICAL EXAM STUDY GUIDE WITH ALL NEEDED TO
PASS
1.Relays hare hgenerally hused hto hcontrol hinductive hloads hup hto h amps.-
: h10
2.Resistance his:: hOpposition hto hcurrent hflow.
3.One hhorsepower his hequal hto_______watts: h746
4.When htroubleshooting hthe hA/C hsystem hin hthe hschematic h(during
hoperation), hthe hfollowing hconditions hare hfound. hThe hthermostatclosed. hThe
hcontacts
hare hwer hmotor
compressor hand hcondenser hfan hmotors hare hshort hcycling. hThehis hm hthe
hblo hnot hrunning. hWhen hthe hfan hswitch hat hthe hthermostat his hAUTO
hmoved hfro hposition hto hthe hFAN hON hposition, hthe hblower hruns.haused hby;:
hThis hcould hbe hc hfaulty hthermostat h- hAUTO/FAN hON hswitch.
5.An hohmmeter hshould hnever hbe hconnected hto ha;: hCharged hcapacitor
huntil hit hhas hbeen hdischarged.
6.The hthermal hoverload hcontacts hon ha hline hstarter hare husually h reset.:
hman- hual
7.What hcharges hthe hpressure hsignal hin han helectronic hoil hsafety hswitch
hto han helectrical hsignal?: hTransducer.
8.In hthe hschematic, hwhat hvoltage hwould hbe hfound hfrom to hthe
hterminal hY hside hof hthe hcoil hon hline h#11? h(Assume hthehoutput hosed
1 h/ hposition
h10
, hthermostat his hin hthe hcl hand hthe hfan his hset hto hAUTO.): h24
hvolts.
9.When htroubleshooting hthe hA/C hsystem hin hthe hschematic, llowing
hthe hfo hditions hare hfound. hThe hthermostat hcontacts hare hcon-
hclosed. hThe hcom hcondenser hfan hare hnot hrunning. hThe hpressor hand
hblower hmotor his hrunning. hThi hcaused hby;: hAn hopen hHP, hLP, hs hcould hbe
hoverloads, hor hoil hpressure hswitch hline h(li ne h#11).
10.Which hof hthe hfollowing hmotors his hmost henergy hefficient.: hECM.
11.Circuit hbreakers h& hfuses hare hprimarily hused hto hprovide;: hProtection
hfrom han hoverloads hcurrent.
12.The hvoltage hto hground hof ha hHigh hLeg hor hStinger hLeg hon ha hthree
hphase hopen hDelta hsystem hwill hbe happroximately;: h208 hV
13.In hthe hschematic, hwhat hvoltage hwould hbe hfound hfrom G hto hthe
hterminal hside hof hthe htransformer? h(Assume hthe hthermostat his hload
hin hthe hclosed hthe hfan his hset hto hAUTO.): h0 hvolts. hposition
14.When hchecking hthe hwindings hof ha hthree hphase hmotor;: hall hthree
hterminals hshould hshow hthe hsame hresistance.
15.A hdevice hwith hoverload hprotection hused hto hcontrol ha hmotor his ha;:
hdirect hon hline hstarter.
16.To hchange hdirection hof hrotation hof ha hthree hphase hmotor;: hchange hthe
hposition hof hany htwo hsupply hwires.
am
17.The hsymbol hfor ha hheating hthermostat his hrepresented hby hdiagr
_________
2 h/
h10
PASS
1.Relays hare hgenerally hused hto hcontrol hinductive hloads hup hto h amps.-
: h10
2.Resistance his:: hOpposition hto hcurrent hflow.
3.One hhorsepower his hequal hto_______watts: h746
4.When htroubleshooting hthe hA/C hsystem hin hthe hschematic h(during
hoperation), hthe hfollowing hconditions hare hfound. hThe hthermostatclosed. hThe
hcontacts
hare hwer hmotor
compressor hand hcondenser hfan hmotors hare hshort hcycling. hThehis hm hthe
hblo hnot hrunning. hWhen hthe hfan hswitch hat hthe hthermostat his hAUTO
hmoved hfro hposition hto hthe hFAN hON hposition, hthe hblower hruns.haused hby;:
hThis hcould hbe hc hfaulty hthermostat h- hAUTO/FAN hON hswitch.
5.An hohmmeter hshould hnever hbe hconnected hto ha;: hCharged hcapacitor
huntil hit hhas hbeen hdischarged.
6.The hthermal hoverload hcontacts hon ha hline hstarter hare husually h reset.:
hman- hual
7.What hcharges hthe hpressure hsignal hin han helectronic hoil hsafety hswitch
hto han helectrical hsignal?: hTransducer.
8.In hthe hschematic, hwhat hvoltage hwould hbe hfound hfrom to hthe
hterminal hY hside hof hthe hcoil hon hline h#11? h(Assume hthehoutput hosed
1 h/ hposition
h10
, hthermostat his hin hthe hcl hand hthe hfan his hset hto hAUTO.): h24
hvolts.
9.When htroubleshooting hthe hA/C hsystem hin hthe hschematic, llowing
hthe hfo hditions hare hfound. hThe hthermostat hcontacts hare hcon-
hclosed. hThe hcom hcondenser hfan hare hnot hrunning. hThe hpressor hand
hblower hmotor his hrunning. hThi hcaused hby;: hAn hopen hHP, hLP, hs hcould hbe
hoverloads, hor hoil hpressure hswitch hline h(li ne h#11).
10.Which hof hthe hfollowing hmotors his hmost henergy hefficient.: hECM.
11.Circuit hbreakers h& hfuses hare hprimarily hused hto hprovide;: hProtection
hfrom han hoverloads hcurrent.
12.The hvoltage hto hground hof ha hHigh hLeg hor hStinger hLeg hon ha hthree
hphase hopen hDelta hsystem hwill hbe happroximately;: h208 hV
13.In hthe hschematic, hwhat hvoltage hwould hbe hfound hfrom G hto hthe
hterminal hside hof hthe htransformer? h(Assume hthe hthermostat his hload
hin hthe hclosed hthe hfan his hset hto hAUTO.): h0 hvolts. hposition
14.When hchecking hthe hwindings hof ha hthree hphase hmotor;: hall hthree
hterminals hshould hshow hthe hsame hresistance.
15.A hdevice hwith hoverload hprotection hused hto hcontrol ha hmotor his ha;:
hdirect hon hline hstarter.
16.To hchange hdirection hof hrotation hof ha hthree hphase hmotor;: hchange hthe
hposition hof hany htwo hsupply hwires.
am
17.The hsymbol hfor ha hheating hthermostat his hrepresented hby hdiagr
_________
2 h/
h10
