MICHIGAN STATE BRAKES
CERTIFICATION QUESTIONS AND
CORRECT ANSWERS
MostA21995A2&A2newerA2vehiclesA2useA2whichA2ofA2theA2followingA2typesA2ofA2wheelsA2bea
ringsA2onA2non-driveA2wheel?A2-A2Ans--SealedA2non-serviceable
toA2testA2aA2vacuumA2powerA2brakeA2boosterA2inA2theA2vehicle,A2youA2shouldA2pumpA2theA
2brakeA2pedalA2atA2leastA24A2times,A2holdA2theA2brakeA2pedalA2depressed,A2andA2startA2the
A2engine.A2theA2brakeA2pedalA2should:A2-A2Ans--dropA2slightlyA2andA2remainA2firm
YouA2areA2installingA2aA2setA2ofA2brakeA2shoeA2liningsA2thatA2areA2notA2theA2sameA2length.
A2Traditionally,A2theA2primaryA2shoeA2liningA2is:A2-A2Ans--
SmallerA2andA2goesA2towardsA2theA2frontA2ofA2theA2car.
AA2crackedA2orA2tornA2vacuumA2diaphragmA2inA2aA2brakeA2powerA2boosterA2wouldA2mostA2
likelyA2cause:A2-A2Ans--aA2hardA2pedalA2feelA2requiringA2veryA2highA2pedalA2effortA2toA2stop
AA2mechanicA2findsA2gearA2lubeA2insideA2bothA2rearA2brakeA2drumsA2onA2aA2rearA2wheelA2
driveA2vehicle.A2WhatA2isA2theA2mostA2likelyA2causeA2ofA2thisA2problem?A2-A2Ans--
AA2pluggedA2axle
WhichA2ofA2theA2followingA2incorrectA2serviceA2proceduresA2willA2causeA2brakeA2lock-up?
A2-A2Ans--masterA2cylinderA2pushA2rodA2adjustedA2tooA2long
WhichA2ofA2theA2followingA2describesA2theA2properA2wayA2toA2depressurizedA2anA2ABSA2s
ystem?A2-A2Ans--
PumpA2theA2brakeA2pedalA2atA2leastA225A2timesA2(orA2more,A2dependingA2onA2theA2manufa
cturer'sA2recommendation)A2withA2theA2ignitionA2off.
TheA2rearA2brakesA2areA2draggingA2afterA2havingA2newA2liningsA2installedA2andA2theA2dru
msA2machined.A2theA2mostA2likelyA2causeA2isA2the:A2-A2Ans--
technicianA2useA2theA2parkingA2brakeA2toA2adjustA2shoesA2andA2theA2cableA2isA2stuck
WhenA2turningA2brakeA2drums:A2-A2Ans--useA2aA2dampeningA2strapA2toA2reduceA2chatter
WhichA2ofA2theA2followingA2isA2NOTA2aA2necessaryA2drumA2brakeA2measurement?A2-
A2Ans--run-out
OnA2aA23-channelA2system,A2whichA2wheelsA2areA2onA2theA2sameA2circuit?A2-A2Ans--
bothA2rearA2wheels
, OneA2wayA2toA2testA2anA2ABSA2wheelA2speedA2signalA2isA2toA2useA2_____A2onA2yourA2digit
alA2multimeter.A2-A2Ans--ACA2volts
TheA2keyA2inputA2forA2theA2ABSA2controlA2moduleA2comesA2fromA2the:A2-A2Ans--
wheelA2speedA2sensors
ABSA2speedA2sensorA2andA2sensorA2rings:A2-A2Ans--
shouldA2notA2beA2hammeredA2orA2tappedA2onA2andA2shouldA2alwaysA2beA2replacedA2asA2a
A2matchedA2set
FlexibleA2brakeA2hosesA2shouldA2beA2replaced:A2-A2Ans--
whenA2dampnessA2isA2evidentA2onA2theA2hose
WhichA2ofA2theA2followingA2shouldA2beA2usedA2toA2checkA2forA2rotorA2thicknessA2variation:A
2-A2Ans--Micrometer
AfterA2rebuildingA2aA2masterA2cylinder,A2theA2rodA2betweenA2theA2masterA2cylinderA2andA2
boosterA2shouldA2be:A2-A2Ans--adjustedA2properly
UponA2inspectingA2brakeA2fluidA2condition,A2theA2technicianA2observesA2theA2diaphragmA2i
nA2theA2masterA2cylinderA2cupA2isA2swollen.A2WhichA2ofA2theA2followingA2isA2theA2mostA2lik
elyA2cause?A2-A2Ans--siliconeA2fluidA2addedA2toA2theA2system
WhenA2inspectingA2brakeA2fluidA2levels,A2aA2technicianA2observesA2lowA2fluidA2levels.A2whi
chA2ofA2theA2followingA2shouldA2beA2doneA2first?A2-A2Ans--
InspectA2discA2brakeA2padsA2forA2excessiveA2wear
WhichA2ofA2theA2followingA2isA2trueA2aboutA2mostA2properlyA2functioningA2anti-
lockA2brakeA2systems?A2-A2Ans--
TheA2brakesA2mayA2lockA2upA2atA2speedsA2lessA2thanA210A2milesA2perA2hour
WhichA2ofA2theA2followingA2isA2trueA2aboutA2bleedingA2brakeA2linesA2onA2mostA2ABSA2equi
ppedA2vehicles?A2-A2Ans--
MostA2ABSA2brakeA2linesA2canA2beA2bledA2likeA2aA2conventionalA2(non-
ABS)A2system.A2However,A2cautionA2mustA2beA2takenA2becauseA2ofA2theA2extremeA2press
ure.
MostA2anti-
lockA2brakeA2systemsA2requireA2theA2removalA2ofA2theA2pressureA2modulatorA2fuseA2when:
A2-A2Ans--aA2"spaced-
saver"A2spareA2tireA2isA2beingA2usedA2andA2mismatchedA2tiresA2areA2beingA2installed
WhatA2doesA2aA2loadA2sensingA2proportioningA2valveA2do?A2-A2Ans--
ItA2increasesA2theA2hydraulicA2pressureA2duringA2brakingA2atA2theA2rearA2wheelA2cylindersA
2whenA2theA2vehicleA2isA2loaded
CERTIFICATION QUESTIONS AND
CORRECT ANSWERS
MostA21995A2&A2newerA2vehiclesA2useA2whichA2ofA2theA2followingA2typesA2ofA2wheelsA2bea
ringsA2onA2non-driveA2wheel?A2-A2Ans--SealedA2non-serviceable
toA2testA2aA2vacuumA2powerA2brakeA2boosterA2inA2theA2vehicle,A2youA2shouldA2pumpA2theA
2brakeA2pedalA2atA2leastA24A2times,A2holdA2theA2brakeA2pedalA2depressed,A2andA2startA2the
A2engine.A2theA2brakeA2pedalA2should:A2-A2Ans--dropA2slightlyA2andA2remainA2firm
YouA2areA2installingA2aA2setA2ofA2brakeA2shoeA2liningsA2thatA2areA2notA2theA2sameA2length.
A2Traditionally,A2theA2primaryA2shoeA2liningA2is:A2-A2Ans--
SmallerA2andA2goesA2towardsA2theA2frontA2ofA2theA2car.
AA2crackedA2orA2tornA2vacuumA2diaphragmA2inA2aA2brakeA2powerA2boosterA2wouldA2mostA2
likelyA2cause:A2-A2Ans--aA2hardA2pedalA2feelA2requiringA2veryA2highA2pedalA2effortA2toA2stop
AA2mechanicA2findsA2gearA2lubeA2insideA2bothA2rearA2brakeA2drumsA2onA2aA2rearA2wheelA2
driveA2vehicle.A2WhatA2isA2theA2mostA2likelyA2causeA2ofA2thisA2problem?A2-A2Ans--
AA2pluggedA2axle
WhichA2ofA2theA2followingA2incorrectA2serviceA2proceduresA2willA2causeA2brakeA2lock-up?
A2-A2Ans--masterA2cylinderA2pushA2rodA2adjustedA2tooA2long
WhichA2ofA2theA2followingA2describesA2theA2properA2wayA2toA2depressurizedA2anA2ABSA2s
ystem?A2-A2Ans--
PumpA2theA2brakeA2pedalA2atA2leastA225A2timesA2(orA2more,A2dependingA2onA2theA2manufa
cturer'sA2recommendation)A2withA2theA2ignitionA2off.
TheA2rearA2brakesA2areA2draggingA2afterA2havingA2newA2liningsA2installedA2andA2theA2dru
msA2machined.A2theA2mostA2likelyA2causeA2isA2the:A2-A2Ans--
technicianA2useA2theA2parkingA2brakeA2toA2adjustA2shoesA2andA2theA2cableA2isA2stuck
WhenA2turningA2brakeA2drums:A2-A2Ans--useA2aA2dampeningA2strapA2toA2reduceA2chatter
WhichA2ofA2theA2followingA2isA2NOTA2aA2necessaryA2drumA2brakeA2measurement?A2-
A2Ans--run-out
OnA2aA23-channelA2system,A2whichA2wheelsA2areA2onA2theA2sameA2circuit?A2-A2Ans--
bothA2rearA2wheels
, OneA2wayA2toA2testA2anA2ABSA2wheelA2speedA2signalA2isA2toA2useA2_____A2onA2yourA2digit
alA2multimeter.A2-A2Ans--ACA2volts
TheA2keyA2inputA2forA2theA2ABSA2controlA2moduleA2comesA2fromA2the:A2-A2Ans--
wheelA2speedA2sensors
ABSA2speedA2sensorA2andA2sensorA2rings:A2-A2Ans--
shouldA2notA2beA2hammeredA2orA2tappedA2onA2andA2shouldA2alwaysA2beA2replacedA2asA2a
A2matchedA2set
FlexibleA2brakeA2hosesA2shouldA2beA2replaced:A2-A2Ans--
whenA2dampnessA2isA2evidentA2onA2theA2hose
WhichA2ofA2theA2followingA2shouldA2beA2usedA2toA2checkA2forA2rotorA2thicknessA2variation:A
2-A2Ans--Micrometer
AfterA2rebuildingA2aA2masterA2cylinder,A2theA2rodA2betweenA2theA2masterA2cylinderA2andA2
boosterA2shouldA2be:A2-A2Ans--adjustedA2properly
UponA2inspectingA2brakeA2fluidA2condition,A2theA2technicianA2observesA2theA2diaphragmA2i
nA2theA2masterA2cylinderA2cupA2isA2swollen.A2WhichA2ofA2theA2followingA2isA2theA2mostA2lik
elyA2cause?A2-A2Ans--siliconeA2fluidA2addedA2toA2theA2system
WhenA2inspectingA2brakeA2fluidA2levels,A2aA2technicianA2observesA2lowA2fluidA2levels.A2whi
chA2ofA2theA2followingA2shouldA2beA2doneA2first?A2-A2Ans--
InspectA2discA2brakeA2padsA2forA2excessiveA2wear
WhichA2ofA2theA2followingA2isA2trueA2aboutA2mostA2properlyA2functioningA2anti-
lockA2brakeA2systems?A2-A2Ans--
TheA2brakesA2mayA2lockA2upA2atA2speedsA2lessA2thanA210A2milesA2perA2hour
WhichA2ofA2theA2followingA2isA2trueA2aboutA2bleedingA2brakeA2linesA2onA2mostA2ABSA2equi
ppedA2vehicles?A2-A2Ans--
MostA2ABSA2brakeA2linesA2canA2beA2bledA2likeA2aA2conventionalA2(non-
ABS)A2system.A2However,A2cautionA2mustA2beA2takenA2becauseA2ofA2theA2extremeA2press
ure.
MostA2anti-
lockA2brakeA2systemsA2requireA2theA2removalA2ofA2theA2pressureA2modulatorA2fuseA2when:
A2-A2Ans--aA2"spaced-
saver"A2spareA2tireA2isA2beingA2usedA2andA2mismatchedA2tiresA2areA2beingA2installed
WhatA2doesA2aA2loadA2sensingA2proportioningA2valveA2do?A2-A2Ans--
ItA2increasesA2theA2hydraulicA2pressureA2duringA2brakingA2atA2theA2rearA2wheelA2cylindersA
2whenA2theA2vehicleA2isA2loaded