DIESEL TECH ASE PRACTICE TEST
1 ELECTRICAL/ELECTRONIC
SYSTEMS EXAM WITH VERIFIED
ANSWERS
A mresistance mtest mwas mperformed mon man mopen mtoggle mswitch mand mthe
mresult mis m5.857 mmegohms. mTechnician mA msays mthat mthe mswitch mis mfaulty
mbecause mthe mreading mis mbeyond mthe mspecifications. mTechnician mB msays
mthat mthe mswitch mhas mover m5 mmillion mohms mof mresistance. mWho mis
mcorrect?
A. mA monly
B. mB monly
C. mBoth mA mand mB
D. mNeither mA mnor mB m- mcorrect manswers m-B. mB monly
Which mof mthe mfollowing mconditions mcould mcause mthe mpower mlocks mto mfail
mto moperate?
A. mBroken mconnector mat mthe mpower mlock mswitch
B. mClosed mpower mlock mcircuit mbreaker
, C. mAn moversized mfuse
D. mAn moversized mwire mrepair min mthe mpower mlock mcircuit m- mcorrect manswers
m-A. mBroken mconnector mat mthe mpower mlock mswitch
When musing ma m12 mvolt, munpowered mtest mlamp mto mtest mfor mvoltage, mall mof
mthe mfollowing mare mtrue mEXCEPT:
A. mThe mtest mlamp mmay mbe mconnected mto mthe mbattery mground
B. mThe mbattery mshould mfirst mbe mdisconnected
C. mThe mtest mlamp mmay mbe mconnected mto ma mchassis mground
D. mThe mtest mlamp mwill mnot milluminate mwhen mprobed minto mthe mcircuit mat ma
mpoint mafter mthe mload m- mcorrect manswers m-B. mThe mbattery mshould mbe
mdisconnected
After mremoving ma m30 mamp mcircuit mbreaker mfrom ma mfuse mpanel, ma
mtechnician mchecks mcontinuity macross mits mterminals mwith ma mdigital mmultimeter
m(DMM). mTechnician mA msays mthat mthe mcurrent mfrom mthe mohmmeter mwill
mopen mthe mcircuit mbreaker. mTechnician mB msays mthe mohmmeter mshould mread
minfinity mif mthe mcircuit mbreaker mis mgood. mWho mis mcorrect?
A. mA monly
B. mB monly
C. mBoth mA mand mB
D. mNeither mA mnor mB m- mcorrect manswers m-D. mNeither mA mnor mB
Technician mA muses ma mtest mlamp mto mdetect mresistance. mTechnician mB muses
ma mjumper mwire mwhen mverifying mthe moperation mof mcircuit mbreakers, mrelays,
mand mswitches. mWho mis mcorrect?
A. mA monly
B. mB monly
C. mBoth mA mand mB
D. mNeither mA mnor mB m- mcorrect manswers m-B. mB monly
Technician mA msays mthat ma mcharge mindicator mlight mshould mcome mon mwith
mthe mkey mon, mengine moff. mTechnician mB mstates mthat mif mthe mindicator mis
mnot mwith mthe mengine mrunning, mit mcan mbe massumed mthat mthe mcharging
msystem mis mfunctioning mproperly. mWho mis mcorrect?
A. mA monly
B. mB monly
C. mBoth mA mand mB
D. mNeither mA mnor mB m- mcorrect manswers m-A. mA monly
Technician mA msays mthat man mamp mclamp mis ma museful mtool mto muse mwhen
mchecking mfor mkey-off mdrain. mTechnician mB msays mthat ma mfaulty mrectifier
mbridge min mthe malternator mcould mcause mexcessive mkey-off mdrain. mWho mis
mcorrect?
A. mA monly
B. mB monly
C. mBoth mA mand mB
D. mNeither mA mnor mB m- mcorrect manswers m-C. mBoth mA mand mB
1 ELECTRICAL/ELECTRONIC
SYSTEMS EXAM WITH VERIFIED
ANSWERS
A mresistance mtest mwas mperformed mon man mopen mtoggle mswitch mand mthe
mresult mis m5.857 mmegohms. mTechnician mA msays mthat mthe mswitch mis mfaulty
mbecause mthe mreading mis mbeyond mthe mspecifications. mTechnician mB msays
mthat mthe mswitch mhas mover m5 mmillion mohms mof mresistance. mWho mis
mcorrect?
A. mA monly
B. mB monly
C. mBoth mA mand mB
D. mNeither mA mnor mB m- mcorrect manswers m-B. mB monly
Which mof mthe mfollowing mconditions mcould mcause mthe mpower mlocks mto mfail
mto moperate?
A. mBroken mconnector mat mthe mpower mlock mswitch
B. mClosed mpower mlock mcircuit mbreaker
, C. mAn moversized mfuse
D. mAn moversized mwire mrepair min mthe mpower mlock mcircuit m- mcorrect manswers
m-A. mBroken mconnector mat mthe mpower mlock mswitch
When musing ma m12 mvolt, munpowered mtest mlamp mto mtest mfor mvoltage, mall mof
mthe mfollowing mare mtrue mEXCEPT:
A. mThe mtest mlamp mmay mbe mconnected mto mthe mbattery mground
B. mThe mbattery mshould mfirst mbe mdisconnected
C. mThe mtest mlamp mmay mbe mconnected mto ma mchassis mground
D. mThe mtest mlamp mwill mnot milluminate mwhen mprobed minto mthe mcircuit mat ma
mpoint mafter mthe mload m- mcorrect manswers m-B. mThe mbattery mshould mbe
mdisconnected
After mremoving ma m30 mamp mcircuit mbreaker mfrom ma mfuse mpanel, ma
mtechnician mchecks mcontinuity macross mits mterminals mwith ma mdigital mmultimeter
m(DMM). mTechnician mA msays mthat mthe mcurrent mfrom mthe mohmmeter mwill
mopen mthe mcircuit mbreaker. mTechnician mB msays mthe mohmmeter mshould mread
minfinity mif mthe mcircuit mbreaker mis mgood. mWho mis mcorrect?
A. mA monly
B. mB monly
C. mBoth mA mand mB
D. mNeither mA mnor mB m- mcorrect manswers m-D. mNeither mA mnor mB
Technician mA muses ma mtest mlamp mto mdetect mresistance. mTechnician mB muses
ma mjumper mwire mwhen mverifying mthe moperation mof mcircuit mbreakers, mrelays,
mand mswitches. mWho mis mcorrect?
A. mA monly
B. mB monly
C. mBoth mA mand mB
D. mNeither mA mnor mB m- mcorrect manswers m-B. mB monly
Technician mA msays mthat ma mcharge mindicator mlight mshould mcome mon mwith
mthe mkey mon, mengine moff. mTechnician mB mstates mthat mif mthe mindicator mis
mnot mwith mthe mengine mrunning, mit mcan mbe massumed mthat mthe mcharging
msystem mis mfunctioning mproperly. mWho mis mcorrect?
A. mA monly
B. mB monly
C. mBoth mA mand mB
D. mNeither mA mnor mB m- mcorrect manswers m-A. mA monly
Technician mA msays mthat man mamp mclamp mis ma museful mtool mto muse mwhen
mchecking mfor mkey-off mdrain. mTechnician mB msays mthat ma mfaulty mrectifier
mbridge min mthe malternator mcould mcause mexcessive mkey-off mdrain. mWho mis
mcorrect?
A. mA monly
B. mB monly
C. mBoth mA mand mB
D. mNeither mA mnor mB m- mcorrect manswers m-C. mBoth mA mand mB
