Brake Test Practice well illustrated study guide

Brake Test Practice
d d




Whatdshoulddbrakedhosesdbedinspecteddfor?d-dCracks/splits,dchaffing.danddbulging

Vacuumdboostersdrequired______dtodoperatedproperly.d-d17d-d21dHg

Whendalldbrakesdareddragging,dwhatdisdmostdlikelydthedcause?d-
dIncorrectlydadjusteddbrakedpedaldfreedplay




TruedordFalse?dIfdadvehicledhasdadseizeddcaliperditdwilldpulldtodthedsidedofdthedseizeddcaliperd(
ex:dSeizeddleftdcaliper--thedvehicledwilldpulldleft)d-dFalse

Advehicledhasdadhydrodboostdpowerdbrakedsystem.dPoordbrakedperformancedcandbedcaused
dbydwhat?

A)dLowdpowerdsteeringdfluid
B)dLowdenginedvacuum
C)dAdloosedpowerdsteeringdbelt
D)dBothdAdanddCd-dD

Adcustomerdstatesdtheydaredexperiencingdadproblemdwhendthedvehicledisdstopped.dThedbrak
edpedaldslowlydsinksdalldthedwaydtodthedfloor.dWhatdisdthedmostdlikelydcause?d-
dFailingdmasterdcylinderdcupdseals




TruedordFalse.dOverdheateddbrakedfluiddcandboildanddvaporizedwhichdwilldleavedvapordpocke
tsdindthedhydraulicdsystem.dThisdcandresultdindadspongydbrakedpedal.d-dTrue

Combinationdvalvesdcontaindalldofdthedfollowingdexcept:d
A)dBrakedlampdswitch
B)dBrakeddifferentialdswitch
C)dProportioningdvalve
D)dMeteringdvalve.d-dA

Adcustomerdcomplainsdaboutdadbrakedpulsationdafterdthedfrontdrotorsdaredreplaced.dThisdisd
mostdlikelydcauseddbydwhichdofdthedfollowing?d
A)dLowdBrakedFluid,
B)dLowdEnginedVacuum,d
C)dStickingdSlidedPins,d
D)dRustdbetweendthedhubdanddrotord-dD

Advehicledwithdfrontddisc,drearddrumdbrakesdisdhavingdadproblemdwhendbraking.dThedfrontdofd
thedvehicleddipsdwhendbrakingd(noseddives)dWhatdcomponentdisdthedmostdlikelydthedcause?
d

A)dProportioningdValve,
B)dMeteringdValve,
C)dBrakedBooster