ASE BRAKES T4 PRACTICE TEST #1 EXAM QUESTIONS AND CORRECT
ANSWERS
Which cof cthe cfollowing ccould ccause cthe cbrakes con ca ctruck cto cwear ctoo cfast?
A. cGlazed cDrums
B. cWrong clinings cinstalled
C. cLow cair cpressure cin cthe cservice ctanks
D. cGovernor ccut-out cpressure ctoo chigh c- cCORRECT cANS✔✔Answer cA cis cincorrect. cGlazed cdrum clinings care chard cand cdo
cnot cwear. cThey calso cdo cnot cstop cthe ctruck.
Answer cB cis ccorrect. cThe cwrong clining cfor cthe capplication cmay cbe cthe cproblem. c
Answer cC cis cincorrect. cLow cair cpressure cin cthe ctanks cwould cnot ccause cbrake cwear. cIt cmay ccause ca clow camount cof creserve
cair cin ccase cof cmultiple cbrake capplications.
Answer cD cis cincorrect. cHigh cgovernor ccut=out cpressure cmay ccause cthe csafety cvalve cto copen, cbut cwould cnot ccause cthe
cbrakes cto cwear ctoo cfast.
Which cof cthe cfollowing ccould ccase cone cbrake con ca ctruck cto cwear cfaster cthan cthe cothers?
A. cMismatched cservice cbrake cchambers
B. cMismatched cparking cbrake cchambers
C. cLow cair cpressure cin cthe cservice ctanks
D. cGovernor ccut-out cpressure ctoo clow c- cCORRECT cANS✔✔Answer cA cis ccorrect. cMismatched cbrake cservice cchambers
cwould capply cunequal cbrake capplication cpressure cfrom cside cto cside, cwhich cwould ccause cone cbrake cto cwear cfaster.
Answer cB cis cincorrect. cMismatched cparking cbrake cchambers cwould cnot ccause cbrake cwear. cIt cwould cpossibly callow cthe
cbrake cto croll cwhen cparked, cbecause cone cside ccould chave cinsufficient cparking cbrake capplication.
Answer cC cis cincorrect. cLow cair cpressure cin cthe ctanks cwould cnot ccause cbrake cwear. cIt cmay ccause ca clow camount cof creserve
cair cin ccase cof cmultiple cbrake capplications
Answer cD cis cincorrect. cLow cgovernor ccut-out cpressure cmay ccause can cinadequate camount cof cair cin creserve cbut cwould cnot
ccause cthe cbrake cto cwear ctoo cfast.
There cis can caudible cair cleak cfrom cunder cthe cdash cwhen cthe cfoot cvalve cis capplied. cTechnician cA csays cthe cdouble-check
cvalve cmay cbe cfaulty. cTechnician cB csays cthe csingle-check cvalve cmay cbe
faulty. cWho cis ccorrect? c- cCORRECT cANS✔✔A. cA conly
B. cB conly
C. cBoth cA cand cB
D. cNeither cA cnor cB
Answer cA cis ccorrect. cA cleaking cdouble ccheck cvalve ccould callow cair cto cflow cto cthe cfoot cvalve cand cout cthe copen cexhaust
Answer cB cis cincorrect. cSingle ccheck cvalves care cused cto cprotect cthe ctanks. cThey cdo cnot ccause can cair cleak cwhen cthe
cbrakes care capplied.
Answer cC cis cincorrect. cTechnician cB cis cincorrect.
Answer cD cis cincorrect. cTechnician cA cis ccorrect.
On ca cstraight ctruck cequipped cwith cair cbrakes, cthe csecondary ctank cpressure cgauge cfalls cto czero cwhen cshe cwet cair ctank cis
cdrained. cTechnician cA csays cthe cone-way ccheck cvalve cmay cbe cfaulty.
Technician cB csays cthe cfoor cvalve cmay cbe cfaulty. cWho cis ccorrect?
A. cA conly
B. cB conly
C. cBoth cA cand cB
D. cNeither cA cnor cB c- cCORRECT cANS✔✔Answer cA cis ccorrect. cThe cone cway ccheck cvalve cshould cprotect cthe csecondary
ctank. cThe ccheck cvalve cis cleaking.
Answer cB cis cincorrect. cThe cfoot cvalve cdoes cnot cseparate cthe cwet cand csecondary ctanks.
Answer cC cis cincorrect. cTechnician cB cis cincorrect.
Answer cD cis cincorrect. cTechnician cA cis ccorrect.
Which cof cthe cfollowing ccould cset can cantilock cbraking csystem c(ABS) cwheel cspeed csensor ccode:
A. cFaulty cmodulator chold csolenoid
B. cFaulty cmodulator crelease csolenoid
, C. cIncorrect cwheel cbearing cadjustment
D. cIncorrect cbrake cadjustment c- cCORRECT cANS✔✔Answer cA cis cincorrect. cA cfaulty csolenoid cwould cnot ccause ca cwheel
cspeed csensor ccode. cIt ccould ccause ca cmodulator cvalve ccode.
Answer cB cis cincorrect. cA cfaulty csolenoid cwould cnot ccause ca cwheel cspeed csensor ccode. cIt ccould ccause ca cmodulator cvalve
ccode
Answer cC cis ccorrect. cA cloose cwheel cbearing cadjustment ccan ccause ca cfaulty cwheel cspeed csensor cand ca cwheel cspeed
csensor ccode.
Answer cD cis cincorrect. cAn cincorrect cbrake cadjustment cmay ccause ca cdragging cbrake cbut cwould cnot ccause ca cwheel cspeed
csensor ccode
The cair cdrier cpurged ctoo coften. cTechnician cA csays cthe cair cdrier cdelivery ccheck cvalve cmay cbe cleaking. cTechnician cB csays ca
cleaking cwet ctank ccould cbe cthe ccause. cWho cis ccorrect?
A. cA conly
B. cB conly
C. cBoth cA cand cB
D. cNeither cA cnor cB c- cCORRECT cANS✔✔Answer cA cis cincorrect. cTechnician cB cis calso ccorrect.
Answer cB cis cincorrect. cTechnician cA cis calso ccorrect.
Answer cC cis ccorrect. cA cleaking cair cdrier ccheck cvalve cwill callow cthe cwet ctank cto cdrain cback cthrough cthe cair cdrier. cThis cwill
ccause cair cpressure cto cdrop cto cgovernor ccut-in crapidly. cThe cair ccompressor cwill cagain cbuild ctank cpressure cand cunload, cand
cthe csequence cwill cstart cover. cA cleaking cwet ctank cwill ccause cthe cair cpressure cto cfall crapidly cand cthe ccompressor cto cbuild
cair cagain cand cthen ccut cout. cThis ctoo cwill ccause cthe cair cdrier cto cpurge coften.
Answer cD cis cincorrect. cBoth ctechnicians care ccorrect.
The csafety cvalve creleases con cthe cair ctank. cWhich cof cthe cfollowing cis cthe cmost clikely ccause?
A. cPlugged cline cfrom cthe csupply ctank cto cthe cgovernor
B. cFaulty ctractor cprotection cvalve
C. cStuck cspitter con cthe cair cdrier
D. cFaulty csecondary ctank c- cCORRECT cANS✔✔Answer cA cis ccorrect. cIf cthe cline cfrom cthe csupply ctank cto cthe cgovernor cwere
cplugged cthe cgovernor cwould cnot cunload cthe ccompressor.
Answer cB cis cincorrect. cThe ctractor cprotection cvalve ccould cnot ccause cexcessive cpressure.
Answer cC cis cincorrect. cA cstuck cspitter cwould cprevent cthe cair cdrier cfrom cpurging.
Answer cD cis cincorrect. cA cfaulty csecondary ctank ccould cleak, cbut cthat cwould cnot ccause cexcessive cair cpressure.
A ctruck cwith chydraulic cdisc/drum cbrakes chas ca chigh cfirm cpedal cwith cpoor cstopping. cWhich cof cthe cfollowing ccould cbe cthe
ccause?
A. cThe cbrakes care cadjusted ctoo cloose.
B. cThe cbrake clinings care cglazed.
C. cThe cbrake cpedal cpushrod cis ctoo clong.
D. cThe cdriveline cparking cbrake cis cmisadjusted. c- cCORRECT cANS✔✔Answer cA cis cincorrect. cIf cdrum cbrakes care cadjusted
ctoo cloose cthe cpedal cwill cbe clow cbecause cthe cpedal cwill cneed cto ctravel cfarther cto ctake cup cthe cclearance.
Answer cB cis ccorrect. cGlazed cbrake clinings cwill cnot ccreate cthe cfriction cneeded cto cstop cthe ctruck cbut cwill callow cthe cpedal cto
cfeel chigh cand cfirm.
Answer cC cis cincorrect. cA cpushrod cthat cis ctoo clong cwould ccause cthe cbrakes cto cdrag.
Answer cD cis cincorrect. cThe cdriveline cparking cbrake cadjustment cwould cnot ccause ca clow cpedal. cIt cis cnot cconnected cto cthe
cservice cbrakes.
Air cpressure cbuilds cup con ca ctruck cin c1.5 cminutes. cThe cspecification cmanual csays cit cshould ctake c3.5 cminutes. cTechnician cA
csays cthe cair ctanks ccould chave cwater cbuildup. cTechnician cB csays cthe cair ctanks ccould chave coil cbuildup. cWho cis ccorrect?
A. cA conly
B. cBonly
C. cBoth cA cand cB
D. cNeither cA cnor cB c- cCORRECT cANS✔✔Answer cA cis cincorrect. cBoth ctechnicians care ccorrect.
Answer cB cis cincorrect. cBoth ctechnicians care ccorrect.
Answer cC cis ccorrect. cOil cor cwater cbuildup cwill creduce cthe cvolume cand cresult cin ca cdecreased cair cbuildup ctime.
Answer cD cis cincorrect. cBoth ctechnicians care ccorrect.
Brake cfluid cis cleaking cfrom cthe crear cof ca cmaster ccylinder con ca ctruck cequipped cwith chydro-boost cbrakes. cWhich cof cthe
cfollowing cis cthe cmost clikely ccause?
A. cBy-passing cmaster ccylinder
B. cPrimary cseal cleaking
C. cSecondary cseal cleaking
D. cBrake cbooster cleaking c- cCORRECT cANS✔✔Answer cA cis cincorrect. cA cby-passing cmaster ccylinder cdoes cnot ccreate can
cexternal cleak; cit ccreates ca clow cpedal.
Answer cB cis ccorrect. cA cprimary cseal cleaking cwould ccreate ca cleak chere.
Answer cC cis cincorrect. cA csecondary cseal cleak ccauses can cinternal cleak cAnswer cD cis cincorrect. cA cbrake cbooster cdoes cnot
cleak cbrake cfluid.
Air cpressure cbuildup ctime con ca ctruck cequipped cwith ca cgear-driven cair ccompressor cis cgreater cthan cspecification. cWhich cof
cthe cfollowing cis cthe cmost clikely ccause?
A. cA cslipping cdrive
B. cA cleaking cservice crelay cvalve
C. cA cleaking cprimary cair ctank
D. cA cleaking cparking cbrake cchamber c- cCORRECT cANS✔✔Answer cA cis cincorrect. cA cgear-driven ccompressor cdrive cmay
cknock, cbut cit cdoes cnot cusually cslip. cIt ceither cworks cor cit cdoes cnot cturn cthe ccompressor cat call.
Answer cB cis cincorrect. cThe cservice crelay cvalve cis cnot cactivated cduring cthe cair cpressure cbuildup ctest.
ANSWERS
Which cof cthe cfollowing ccould ccause cthe cbrakes con ca ctruck cto cwear ctoo cfast?
A. cGlazed cDrums
B. cWrong clinings cinstalled
C. cLow cair cpressure cin cthe cservice ctanks
D. cGovernor ccut-out cpressure ctoo chigh c- cCORRECT cANS✔✔Answer cA cis cincorrect. cGlazed cdrum clinings care chard cand cdo
cnot cwear. cThey calso cdo cnot cstop cthe ctruck.
Answer cB cis ccorrect. cThe cwrong clining cfor cthe capplication cmay cbe cthe cproblem. c
Answer cC cis cincorrect. cLow cair cpressure cin cthe ctanks cwould cnot ccause cbrake cwear. cIt cmay ccause ca clow camount cof creserve
cair cin ccase cof cmultiple cbrake capplications.
Answer cD cis cincorrect. cHigh cgovernor ccut=out cpressure cmay ccause cthe csafety cvalve cto copen, cbut cwould cnot ccause cthe
cbrakes cto cwear ctoo cfast.
Which cof cthe cfollowing ccould ccase cone cbrake con ca ctruck cto cwear cfaster cthan cthe cothers?
A. cMismatched cservice cbrake cchambers
B. cMismatched cparking cbrake cchambers
C. cLow cair cpressure cin cthe cservice ctanks
D. cGovernor ccut-out cpressure ctoo clow c- cCORRECT cANS✔✔Answer cA cis ccorrect. cMismatched cbrake cservice cchambers
cwould capply cunequal cbrake capplication cpressure cfrom cside cto cside, cwhich cwould ccause cone cbrake cto cwear cfaster.
Answer cB cis cincorrect. cMismatched cparking cbrake cchambers cwould cnot ccause cbrake cwear. cIt cwould cpossibly callow cthe
cbrake cto croll cwhen cparked, cbecause cone cside ccould chave cinsufficient cparking cbrake capplication.
Answer cC cis cincorrect. cLow cair cpressure cin cthe ctanks cwould cnot ccause cbrake cwear. cIt cmay ccause ca clow camount cof creserve
cair cin ccase cof cmultiple cbrake capplications
Answer cD cis cincorrect. cLow cgovernor ccut-out cpressure cmay ccause can cinadequate camount cof cair cin creserve cbut cwould cnot
ccause cthe cbrake cto cwear ctoo cfast.
There cis can caudible cair cleak cfrom cunder cthe cdash cwhen cthe cfoot cvalve cis capplied. cTechnician cA csays cthe cdouble-check
cvalve cmay cbe cfaulty. cTechnician cB csays cthe csingle-check cvalve cmay cbe
faulty. cWho cis ccorrect? c- cCORRECT cANS✔✔A. cA conly
B. cB conly
C. cBoth cA cand cB
D. cNeither cA cnor cB
Answer cA cis ccorrect. cA cleaking cdouble ccheck cvalve ccould callow cair cto cflow cto cthe cfoot cvalve cand cout cthe copen cexhaust
Answer cB cis cincorrect. cSingle ccheck cvalves care cused cto cprotect cthe ctanks. cThey cdo cnot ccause can cair cleak cwhen cthe
cbrakes care capplied.
Answer cC cis cincorrect. cTechnician cB cis cincorrect.
Answer cD cis cincorrect. cTechnician cA cis ccorrect.
On ca cstraight ctruck cequipped cwith cair cbrakes, cthe csecondary ctank cpressure cgauge cfalls cto czero cwhen cshe cwet cair ctank cis
cdrained. cTechnician cA csays cthe cone-way ccheck cvalve cmay cbe cfaulty.
Technician cB csays cthe cfoor cvalve cmay cbe cfaulty. cWho cis ccorrect?
A. cA conly
B. cB conly
C. cBoth cA cand cB
D. cNeither cA cnor cB c- cCORRECT cANS✔✔Answer cA cis ccorrect. cThe cone cway ccheck cvalve cshould cprotect cthe csecondary
ctank. cThe ccheck cvalve cis cleaking.
Answer cB cis cincorrect. cThe cfoot cvalve cdoes cnot cseparate cthe cwet cand csecondary ctanks.
Answer cC cis cincorrect. cTechnician cB cis cincorrect.
Answer cD cis cincorrect. cTechnician cA cis ccorrect.
Which cof cthe cfollowing ccould cset can cantilock cbraking csystem c(ABS) cwheel cspeed csensor ccode:
A. cFaulty cmodulator chold csolenoid
B. cFaulty cmodulator crelease csolenoid
, C. cIncorrect cwheel cbearing cadjustment
D. cIncorrect cbrake cadjustment c- cCORRECT cANS✔✔Answer cA cis cincorrect. cA cfaulty csolenoid cwould cnot ccause ca cwheel
cspeed csensor ccode. cIt ccould ccause ca cmodulator cvalve ccode.
Answer cB cis cincorrect. cA cfaulty csolenoid cwould cnot ccause ca cwheel cspeed csensor ccode. cIt ccould ccause ca cmodulator cvalve
ccode
Answer cC cis ccorrect. cA cloose cwheel cbearing cadjustment ccan ccause ca cfaulty cwheel cspeed csensor cand ca cwheel cspeed
csensor ccode.
Answer cD cis cincorrect. cAn cincorrect cbrake cadjustment cmay ccause ca cdragging cbrake cbut cwould cnot ccause ca cwheel cspeed
csensor ccode
The cair cdrier cpurged ctoo coften. cTechnician cA csays cthe cair cdrier cdelivery ccheck cvalve cmay cbe cleaking. cTechnician cB csays ca
cleaking cwet ctank ccould cbe cthe ccause. cWho cis ccorrect?
A. cA conly
B. cB conly
C. cBoth cA cand cB
D. cNeither cA cnor cB c- cCORRECT cANS✔✔Answer cA cis cincorrect. cTechnician cB cis calso ccorrect.
Answer cB cis cincorrect. cTechnician cA cis calso ccorrect.
Answer cC cis ccorrect. cA cleaking cair cdrier ccheck cvalve cwill callow cthe cwet ctank cto cdrain cback cthrough cthe cair cdrier. cThis cwill
ccause cair cpressure cto cdrop cto cgovernor ccut-in crapidly. cThe cair ccompressor cwill cagain cbuild ctank cpressure cand cunload, cand
cthe csequence cwill cstart cover. cA cleaking cwet ctank cwill ccause cthe cair cpressure cto cfall crapidly cand cthe ccompressor cto cbuild
cair cagain cand cthen ccut cout. cThis ctoo cwill ccause cthe cair cdrier cto cpurge coften.
Answer cD cis cincorrect. cBoth ctechnicians care ccorrect.
The csafety cvalve creleases con cthe cair ctank. cWhich cof cthe cfollowing cis cthe cmost clikely ccause?
A. cPlugged cline cfrom cthe csupply ctank cto cthe cgovernor
B. cFaulty ctractor cprotection cvalve
C. cStuck cspitter con cthe cair cdrier
D. cFaulty csecondary ctank c- cCORRECT cANS✔✔Answer cA cis ccorrect. cIf cthe cline cfrom cthe csupply ctank cto cthe cgovernor cwere
cplugged cthe cgovernor cwould cnot cunload cthe ccompressor.
Answer cB cis cincorrect. cThe ctractor cprotection cvalve ccould cnot ccause cexcessive cpressure.
Answer cC cis cincorrect. cA cstuck cspitter cwould cprevent cthe cair cdrier cfrom cpurging.
Answer cD cis cincorrect. cA cfaulty csecondary ctank ccould cleak, cbut cthat cwould cnot ccause cexcessive cair cpressure.
A ctruck cwith chydraulic cdisc/drum cbrakes chas ca chigh cfirm cpedal cwith cpoor cstopping. cWhich cof cthe cfollowing ccould cbe cthe
ccause?
A. cThe cbrakes care cadjusted ctoo cloose.
B. cThe cbrake clinings care cglazed.
C. cThe cbrake cpedal cpushrod cis ctoo clong.
D. cThe cdriveline cparking cbrake cis cmisadjusted. c- cCORRECT cANS✔✔Answer cA cis cincorrect. cIf cdrum cbrakes care cadjusted
ctoo cloose cthe cpedal cwill cbe clow cbecause cthe cpedal cwill cneed cto ctravel cfarther cto ctake cup cthe cclearance.
Answer cB cis ccorrect. cGlazed cbrake clinings cwill cnot ccreate cthe cfriction cneeded cto cstop cthe ctruck cbut cwill callow cthe cpedal cto
cfeel chigh cand cfirm.
Answer cC cis cincorrect. cA cpushrod cthat cis ctoo clong cwould ccause cthe cbrakes cto cdrag.
Answer cD cis cincorrect. cThe cdriveline cparking cbrake cadjustment cwould cnot ccause ca clow cpedal. cIt cis cnot cconnected cto cthe
cservice cbrakes.
Air cpressure cbuilds cup con ca ctruck cin c1.5 cminutes. cThe cspecification cmanual csays cit cshould ctake c3.5 cminutes. cTechnician cA
csays cthe cair ctanks ccould chave cwater cbuildup. cTechnician cB csays cthe cair ctanks ccould chave coil cbuildup. cWho cis ccorrect?
A. cA conly
B. cBonly
C. cBoth cA cand cB
D. cNeither cA cnor cB c- cCORRECT cANS✔✔Answer cA cis cincorrect. cBoth ctechnicians care ccorrect.
Answer cB cis cincorrect. cBoth ctechnicians care ccorrect.
Answer cC cis ccorrect. cOil cor cwater cbuildup cwill creduce cthe cvolume cand cresult cin ca cdecreased cair cbuildup ctime.
Answer cD cis cincorrect. cBoth ctechnicians care ccorrect.
Brake cfluid cis cleaking cfrom cthe crear cof ca cmaster ccylinder con ca ctruck cequipped cwith chydro-boost cbrakes. cWhich cof cthe
cfollowing cis cthe cmost clikely ccause?
A. cBy-passing cmaster ccylinder
B. cPrimary cseal cleaking
C. cSecondary cseal cleaking
D. cBrake cbooster cleaking c- cCORRECT cANS✔✔Answer cA cis cincorrect. cA cby-passing cmaster ccylinder cdoes cnot ccreate can
cexternal cleak; cit ccreates ca clow cpedal.
Answer cB cis ccorrect. cA cprimary cseal cleaking cwould ccreate ca cleak chere.
Answer cC cis cincorrect. cA csecondary cseal cleak ccauses can cinternal cleak cAnswer cD cis cincorrect. cA cbrake cbooster cdoes cnot
cleak cbrake cfluid.
Air cpressure cbuildup ctime con ca ctruck cequipped cwith ca cgear-driven cair ccompressor cis cgreater cthan cspecification. cWhich cof
cthe cfollowing cis cthe cmost clikely ccause?
A. cA cslipping cdrive
B. cA cleaking cservice crelay cvalve
C. cA cleaking cprimary cair ctank
D. cA cleaking cparking cbrake cchamber c- cCORRECT cANS✔✔Answer cA cis cincorrect. cA cgear-driven ccompressor cdrive cmay
cknock, cbut cit cdoes cnot cusually cslip. cIt ceither cworks cor cit cdoes cnot cturn cthe ccompressor cat call.
Answer cB cis cincorrect. cThe cservice crelay cvalve cis cnot cactivated cduring cthe cair cpressure cbuildup ctest.
