T4 ASE BRAKE QUIZ QUESTION 2017 WITH CORRECT
RATIONALES
The cthree cports con ca cair cgovernor care c- cCORRECT cANS✔✔Reservoir cunloader cexhaust
Air ctank cpressure cvalve con cthe cthe ctanks cwill copen cat c- cCORRECT cANS✔✔150 cpsi
Air cis cleaking cfrom cthe cquick crelease cvalve cmounted con cthe cfront caxle cduring ca cservice cbrake capplication c- cCORRECT
cANS✔✔Quick crelease
A ctruck cwith cabs cneeds cthe cabs cwheel cspeed csensor creluctor creplaced chow cmany cteeth cshould cthe cnew cabs cwheel cspeed
csensor chave c- cCORRECT cANS✔✔100 cteeth
What cis cthe cthe cminimum cbrake cshoe cline cthickness con ca cs-cam cdrum cbrakes c- cCORRECT cANS✔✔.250 cinches
Tech ca csays cthat ca cwheel cspeed csensor csends ca cD.C. cVoltage csignals cto cthe cecu ctech cb cb csays cthat cthe cfrequency cof cac
cvoltage ccycles cis cdirectly cproportional cto cwheel cspeed cwho cis ccorrect c- cCORRECT cANS✔✔Tech cb
The cmaximum cacceptable cair cleak con ca cstraight ctruck c(parking cbrakes capplied) cis c- cCORRECT cANS✔✔2 cpsi cin cone cminute
The cspring cbrakes con ca ctruck cshould cautomatically capply cwhen cair cpressure cto cthe cpush-pull cvalve con cthe cdash cdrops cto
cbelow c- cCORRECT cANS✔✔Between c20 cand c40 cso c30
A cbroken cair ccompressor cunloaded cvalve cspring cwill cmost clikely ccause c- cCORRECT cANS✔✔Slow cair cbuildup ctime
A ccompressor chas ca cbroken cconnecting crod cthe cair ccompressor ccrankshaft cis cblue cwhich cof cthe cfollowing ccould chave
ccaused cthe cair ccompressor cto cfail c- cCORRECT cANS✔✔Restricted coil csupply
Which cof cthe cfollowing cwould cbe cthe cmost cnormal cend cplay cspec cfor ca cset cof ctapered croller cfront cwheel cbearing c-
cCORRECT cANS✔✔.001 cto c.005 cinches
When cconstant cpressure cis cheld con cthe cservice cbrake cpedal con ca ctruck cwith chydraulic cbrakes cit cslowly cfalls cto cthe cfloor
cthere care cno cextrnal cbrake cfluid cleaks cwhich cof cthe cfollowing ccould cbe cthe ccause c- cCORRECT cANS✔✔The cfluid cis cby-
passing cinside cthe cmaster ccylinder
An cair cdisc cbrake cis cbeing cmeasured cfor cthickness cvariation ctech ca csay ctwo cdial cindicators ccan cbe cused ctech cb csays can
coutside cmicrometer ccan cbe cused cwho cis ccorrect c- cCORRECT cANS✔✔Both
Which cof cthe cfollowing cis cthe ccorrect cway cto ctest cthe cinversion cvalve c- cCORRECT cANS✔✔Drain cthe cprimary ctank cand
cwatch cthe caction cof cthe cparking cbrakes
What cshould cbe cused cto cclean cabs celectric cconnectors c- cCORRECT cANS✔✔Alcohol
The cfitting con ca ctruck cequipped cwith cair cbrakes cmust cbe cstamped cwith c- cCORRECT cANS✔✔Dot
The cair clines cused con ca ctruck cequipped cwith cair cbrakes cmust cbe cstamped cwith c- cCORRECT cANS✔✔Dot
What cis ca cduplex cgauge c- cCORRECT cANS✔✔An cexample cof ca cduplex cgauge cis cthe cdual cair cpressure cgauge cfound con
cmany ctrucks. cIt cis cone cgauge cwith ctwo cneedles
Tech ca csay cthe csame celectronic ccontrol cunit c(Ecu) coperates cThe cantilock cbraking csystems c(abs) con cthe ctractor cand ctrailer
ctech cb csays cthat cif creplacement ctires care cof cdifferent csize cfrom cthe coriginal ctires cthe cwheel cspeed csensor care caffected
cwhat cis ccorrect c- cCORRECT cANS✔✔Tech cb
Truck cwith cdisc cbrakes chas cdragging cbrakes csays cthe ccalipers cmay cbe csticking ctech cb csays cthe cmaster ccylinder cmay cbe
cpassing cfluid cwho cis ccorrect c- cCORRECT cANS✔✔Tech ca
What cis cthe cleast clikely ccause cof ctrailer cabs cfailure c- cCORRECT cANS✔✔A cfailed cabs celectronic ccontrol cunit
The cfunction cof cthe cinversion cvalve cis cto c- cCORRECT cANS✔✔Modulate cthe ctractor cparking cbrakes cin ccase cof ca cprimary cair
ctank cfailure
The cair ccompressor cwill cnot cunload c- cCORRECT cANS✔✔Mostly clikely cair cleak
, An cabs chydraulic ccontrol cunit cmakes ca cclicking cnoise cfor capproximately cfive cseconds cafter cstarting cthe cvehicle ctechnician ca
csays cthat cthis cindicates ca clow cbrake cfluid clevel ctech cb csays cthat cthis cis cthe cinitial cself ccheck cof cthe chcu cand cis cnormal
cwho cis ccorrect c- cCORRECT cANS✔✔Tech cb
A cbroken cair ccompressor cunloader cvalve cspring cwill cmost clikely ccause c- cCORRECT cANS✔✔Slow cair cbuildup ctime
When cdraining cthe ctanks cthe ctech cshould c- cCORRECT cANS✔✔Drain cthe ctank cclosest cto cthe ccompressor
A cvehicle cequipped cwith ca chydro cbooster cbrake csystem cis cbeing cdiagnosed cfor chigh chard cpedal cwhich cof cthe cfollowing
ctools cshould cbe cUsed's c- cCORRECT cANS✔✔A cpower csteering cpressure ctester
The cdriver cof ca ctruck cequipped chydraulic cbrakes cfeels ca crapid cpedal cpulsation cunder cnormal cbraking cconditions cthis ccould
cbe ccaused cby call cof cthe cfollowing cexcept c- cCORRECT cANS✔✔A copen ccircuit cto cthe cspeed csensor
A cdriver ccomplains cabout cpoor cstopping con ca ctractor cair cbrakes csystem ctech ca csays cthere cmay cbe cexcessive cair cleakage
cat cthe cexhaust cvalve cin cthe cservice cin cthe cservice cbrake crelay cvalve ctech cb csay cdifferent ctypes cof cbrake clinings cmay chave
cbeen cinstalled con csome cof cthe ctandem caxle cwheels cwho cis ccorrect c- cCORRECT cANS✔✔Both
A cfaulty cmaster ccylinder ccan ccause ca chydraulic cimbalance cand ccause cthe c- cCORRECT cANS✔✔Red clight cto cilluminate
The cdriver cof ca ctruck creports con chis cdaily ctrip cinspection cform cthat cthe ctruck chas cexcessive cair cpressure cdrops cduring
croutine cstops ctech ca csays cthe cslack cadjusters cmay cbe cout cof cadjustment ctech cb csays cthat cit ccould cbe ccause cby ca cbuildup
cof cmoisture cin cthe creservoir c- cCORRECT cANS✔✔Both
There's cis can caudible cair cleak cfrom cunder cthe cdash cwhen cthe cfoot cvalve cis capplied ctech ca csays cthe cdouble-check cvalve
cmay cbe cfaulty ctech cb csays cthe csingle ccheck cvalve cmay cbe cfaulty cwho's ccorrect c- cCORRECT cANS✔✔Tech ca
Which cof cthe cfollowing ccould cset can cantilock cbraking csystem cabs cwheel cspeed csensor ccode c- cCORRECT cANS✔✔Incorrect
cwheel cbearing cadjustments
A ctruck cwith chydraulic cdisc c/ cdrum chas chigh cfirm cpedal cwith cpoor cstopping cwhich cof cthe cfollowing ccould cbe cthe ccause c-
cCORRECT cANS✔✔The cbrake clinings care cglazed
Brake cfluid cis cleaking cfrom cthe crear cof cmaster ccylinder con ca ctruck cequipped cwith chydro cboost cbrakes cwhich cof cthe cfollowing
cis cthe cmost clikely ccause c- cCORRECT cANS✔✔A cprimary cseal cwould cbe cleaking
An cair ccompressor chas cbroken cconnecting crod cthe ccompressor ccrankshaft cis cnot cdiscolored cthis cis cthe csecond cair
ccompressor cto chave cthis cfailure con cthis ctruck cwhich cof cthe cfollowing ccould cbe cthe ccause c- cCORRECT cANS✔✔Restricted
cair cdischarge cline
Hydraulic cpressure cis cbeing cmeasured cat cthe cbrake ccalipers cwith ca cpressure cgauge cwith cthe cservice cbrake capplied cwhich
cof cthe cfollowing cchanges cin cthe cgauge cpressure creadings cshould coccur cwhen cthe cengine cis cstarted c- cCORRECT
cANS✔✔Raise cappropriately c100 cto c200
During ca cbrake coverhaul cthe ctechnician cfinds call cthe cbrake cchambers cmounting cbrackets care ccracked ctech ca csays cthis
ccould cbe cdue cto cthe ctruck cusing csuper csingles ctires cand cwheels ctechnician cb csays cthis ccould cbe cdue cto clow cair csystems
cpressure cwho's ccorrect c- cCORRECT cANS✔✔Tech ca
Tech ca csays cthat cautomatic ctraction ccontrol carc cfunctions cby capplying cbrakes cpressure cto ca cdrive caxle cwheel cwhen cit's
cspeed cexceeds cthat cof cthe cother cdrive cwheels ctech cb csays cthat cfull cauthority cact cfunctions con csix cwheels cends cof ca
chighway ctractor cwho's ccorrect c- cCORRECT cANS✔✔Tech ca
An cautomatic cslack cadjuster cwill cnot ckeep cthe cbrake cin cadjustment ctech ca csays cthe cproblem cmay cbe can cincorrectly
cinstalled cslack cadjuster ctech cb csays cthe cproblem cmay cbe cthat cmismatched cbrake cchambers care cinstalled con cthe caxle c-
cCORRECT cANS✔✔Tech ca
Metal cbrakes clines cmust cbe creplaced cwith c- cCORRECT cANS✔✔Steel
An cair cdisc cservice cwill cnot capply cair cis cgoing cto cthe cbrake cchamber ctechnician ca csays cthe ccaliper cslides cmay cbe cfrozen
ctechnician cb csays cthe cadjuster cmechanism cmay cbe cfrozen c- cCORRECT cANS✔✔Tech ca
Technician ca csays csome cair cbrake cclevises care cchecked cfor cwear cwith ca cfeeler cgauge ctechnician cb csays csome cair cbrakes
cclevises care cweld cto cthe cbrake cchamber cpush crod cwho's ccorrect c- cCORRECT cANS✔✔Both
A ctruck chas caxles cequipped cwith ctaper clocks cwhich cof cthe cfollowing cis cthe ccorrect cremoval cprocedure c- cCORRECT
cANS✔✔Using capplying ca csledgehammers con cthe cend cof cthe caxle
A ctruck chas cpulsating cbrake cpedal ctech ca csays cexcessive cbrake crotor cthickness cvariation ccould cthe ccause cand cshould cbe
cchecked cwith cmicrometer ctech cb csays cthat cexcessive cbrake crotor crunout ccould cbe cthe ccause cand cshould cbe cchecked cusing
ca cdial cindicator cwho's ccorrect c- cCORRECT cANS✔✔Both
The cparking cbrakes con ca ctruck cequipped cwith cair cbrakes care cslow cto capply cwhich cof cthe cfollowing cis cthe cmost clikely
cproblem c- cCORRECT cANS✔✔Plugged cexhaust cport
RATIONALES
The cthree cports con ca cair cgovernor care c- cCORRECT cANS✔✔Reservoir cunloader cexhaust
Air ctank cpressure cvalve con cthe cthe ctanks cwill copen cat c- cCORRECT cANS✔✔150 cpsi
Air cis cleaking cfrom cthe cquick crelease cvalve cmounted con cthe cfront caxle cduring ca cservice cbrake capplication c- cCORRECT
cANS✔✔Quick crelease
A ctruck cwith cabs cneeds cthe cabs cwheel cspeed csensor creluctor creplaced chow cmany cteeth cshould cthe cnew cabs cwheel cspeed
csensor chave c- cCORRECT cANS✔✔100 cteeth
What cis cthe cthe cminimum cbrake cshoe cline cthickness con ca cs-cam cdrum cbrakes c- cCORRECT cANS✔✔.250 cinches
Tech ca csays cthat ca cwheel cspeed csensor csends ca cD.C. cVoltage csignals cto cthe cecu ctech cb cb csays cthat cthe cfrequency cof cac
cvoltage ccycles cis cdirectly cproportional cto cwheel cspeed cwho cis ccorrect c- cCORRECT cANS✔✔Tech cb
The cmaximum cacceptable cair cleak con ca cstraight ctruck c(parking cbrakes capplied) cis c- cCORRECT cANS✔✔2 cpsi cin cone cminute
The cspring cbrakes con ca ctruck cshould cautomatically capply cwhen cair cpressure cto cthe cpush-pull cvalve con cthe cdash cdrops cto
cbelow c- cCORRECT cANS✔✔Between c20 cand c40 cso c30
A cbroken cair ccompressor cunloaded cvalve cspring cwill cmost clikely ccause c- cCORRECT cANS✔✔Slow cair cbuildup ctime
A ccompressor chas ca cbroken cconnecting crod cthe cair ccompressor ccrankshaft cis cblue cwhich cof cthe cfollowing ccould chave
ccaused cthe cair ccompressor cto cfail c- cCORRECT cANS✔✔Restricted coil csupply
Which cof cthe cfollowing cwould cbe cthe cmost cnormal cend cplay cspec cfor ca cset cof ctapered croller cfront cwheel cbearing c-
cCORRECT cANS✔✔.001 cto c.005 cinches
When cconstant cpressure cis cheld con cthe cservice cbrake cpedal con ca ctruck cwith chydraulic cbrakes cit cslowly cfalls cto cthe cfloor
cthere care cno cextrnal cbrake cfluid cleaks cwhich cof cthe cfollowing ccould cbe cthe ccause c- cCORRECT cANS✔✔The cfluid cis cby-
passing cinside cthe cmaster ccylinder
An cair cdisc cbrake cis cbeing cmeasured cfor cthickness cvariation ctech ca csay ctwo cdial cindicators ccan cbe cused ctech cb csays can
coutside cmicrometer ccan cbe cused cwho cis ccorrect c- cCORRECT cANS✔✔Both
Which cof cthe cfollowing cis cthe ccorrect cway cto ctest cthe cinversion cvalve c- cCORRECT cANS✔✔Drain cthe cprimary ctank cand
cwatch cthe caction cof cthe cparking cbrakes
What cshould cbe cused cto cclean cabs celectric cconnectors c- cCORRECT cANS✔✔Alcohol
The cfitting con ca ctruck cequipped cwith cair cbrakes cmust cbe cstamped cwith c- cCORRECT cANS✔✔Dot
The cair clines cused con ca ctruck cequipped cwith cair cbrakes cmust cbe cstamped cwith c- cCORRECT cANS✔✔Dot
What cis ca cduplex cgauge c- cCORRECT cANS✔✔An cexample cof ca cduplex cgauge cis cthe cdual cair cpressure cgauge cfound con
cmany ctrucks. cIt cis cone cgauge cwith ctwo cneedles
Tech ca csay cthe csame celectronic ccontrol cunit c(Ecu) coperates cThe cantilock cbraking csystems c(abs) con cthe ctractor cand ctrailer
ctech cb csays cthat cif creplacement ctires care cof cdifferent csize cfrom cthe coriginal ctires cthe cwheel cspeed csensor care caffected
cwhat cis ccorrect c- cCORRECT cANS✔✔Tech cb
Truck cwith cdisc cbrakes chas cdragging cbrakes csays cthe ccalipers cmay cbe csticking ctech cb csays cthe cmaster ccylinder cmay cbe
cpassing cfluid cwho cis ccorrect c- cCORRECT cANS✔✔Tech ca
What cis cthe cleast clikely ccause cof ctrailer cabs cfailure c- cCORRECT cANS✔✔A cfailed cabs celectronic ccontrol cunit
The cfunction cof cthe cinversion cvalve cis cto c- cCORRECT cANS✔✔Modulate cthe ctractor cparking cbrakes cin ccase cof ca cprimary cair
ctank cfailure
The cair ccompressor cwill cnot cunload c- cCORRECT cANS✔✔Mostly clikely cair cleak
, An cabs chydraulic ccontrol cunit cmakes ca cclicking cnoise cfor capproximately cfive cseconds cafter cstarting cthe cvehicle ctechnician ca
csays cthat cthis cindicates ca clow cbrake cfluid clevel ctech cb csays cthat cthis cis cthe cinitial cself ccheck cof cthe chcu cand cis cnormal
cwho cis ccorrect c- cCORRECT cANS✔✔Tech cb
A cbroken cair ccompressor cunloader cvalve cspring cwill cmost clikely ccause c- cCORRECT cANS✔✔Slow cair cbuildup ctime
When cdraining cthe ctanks cthe ctech cshould c- cCORRECT cANS✔✔Drain cthe ctank cclosest cto cthe ccompressor
A cvehicle cequipped cwith ca chydro cbooster cbrake csystem cis cbeing cdiagnosed cfor chigh chard cpedal cwhich cof cthe cfollowing
ctools cshould cbe cUsed's c- cCORRECT cANS✔✔A cpower csteering cpressure ctester
The cdriver cof ca ctruck cequipped chydraulic cbrakes cfeels ca crapid cpedal cpulsation cunder cnormal cbraking cconditions cthis ccould
cbe ccaused cby call cof cthe cfollowing cexcept c- cCORRECT cANS✔✔A copen ccircuit cto cthe cspeed csensor
A cdriver ccomplains cabout cpoor cstopping con ca ctractor cair cbrakes csystem ctech ca csays cthere cmay cbe cexcessive cair cleakage
cat cthe cexhaust cvalve cin cthe cservice cin cthe cservice cbrake crelay cvalve ctech cb csay cdifferent ctypes cof cbrake clinings cmay chave
cbeen cinstalled con csome cof cthe ctandem caxle cwheels cwho cis ccorrect c- cCORRECT cANS✔✔Both
A cfaulty cmaster ccylinder ccan ccause ca chydraulic cimbalance cand ccause cthe c- cCORRECT cANS✔✔Red clight cto cilluminate
The cdriver cof ca ctruck creports con chis cdaily ctrip cinspection cform cthat cthe ctruck chas cexcessive cair cpressure cdrops cduring
croutine cstops ctech ca csays cthe cslack cadjusters cmay cbe cout cof cadjustment ctech cb csays cthat cit ccould cbe ccause cby ca cbuildup
cof cmoisture cin cthe creservoir c- cCORRECT cANS✔✔Both
There's cis can caudible cair cleak cfrom cunder cthe cdash cwhen cthe cfoot cvalve cis capplied ctech ca csays cthe cdouble-check cvalve
cmay cbe cfaulty ctech cb csays cthe csingle ccheck cvalve cmay cbe cfaulty cwho's ccorrect c- cCORRECT cANS✔✔Tech ca
Which cof cthe cfollowing ccould cset can cantilock cbraking csystem cabs cwheel cspeed csensor ccode c- cCORRECT cANS✔✔Incorrect
cwheel cbearing cadjustments
A ctruck cwith chydraulic cdisc c/ cdrum chas chigh cfirm cpedal cwith cpoor cstopping cwhich cof cthe cfollowing ccould cbe cthe ccause c-
cCORRECT cANS✔✔The cbrake clinings care cglazed
Brake cfluid cis cleaking cfrom cthe crear cof cmaster ccylinder con ca ctruck cequipped cwith chydro cboost cbrakes cwhich cof cthe cfollowing
cis cthe cmost clikely ccause c- cCORRECT cANS✔✔A cprimary cseal cwould cbe cleaking
An cair ccompressor chas cbroken cconnecting crod cthe ccompressor ccrankshaft cis cnot cdiscolored cthis cis cthe csecond cair
ccompressor cto chave cthis cfailure con cthis ctruck cwhich cof cthe cfollowing ccould cbe cthe ccause c- cCORRECT cANS✔✔Restricted
cair cdischarge cline
Hydraulic cpressure cis cbeing cmeasured cat cthe cbrake ccalipers cwith ca cpressure cgauge cwith cthe cservice cbrake capplied cwhich
cof cthe cfollowing cchanges cin cthe cgauge cpressure creadings cshould coccur cwhen cthe cengine cis cstarted c- cCORRECT
cANS✔✔Raise cappropriately c100 cto c200
During ca cbrake coverhaul cthe ctechnician cfinds call cthe cbrake cchambers cmounting cbrackets care ccracked ctech ca csays cthis
ccould cbe cdue cto cthe ctruck cusing csuper csingles ctires cand cwheels ctechnician cb csays cthis ccould cbe cdue cto clow cair csystems
cpressure cwho's ccorrect c- cCORRECT cANS✔✔Tech ca
Tech ca csays cthat cautomatic ctraction ccontrol carc cfunctions cby capplying cbrakes cpressure cto ca cdrive caxle cwheel cwhen cit's
cspeed cexceeds cthat cof cthe cother cdrive cwheels ctech cb csays cthat cfull cauthority cact cfunctions con csix cwheels cends cof ca
chighway ctractor cwho's ccorrect c- cCORRECT cANS✔✔Tech ca
An cautomatic cslack cadjuster cwill cnot ckeep cthe cbrake cin cadjustment ctech ca csays cthe cproblem cmay cbe can cincorrectly
cinstalled cslack cadjuster ctech cb csays cthe cproblem cmay cbe cthat cmismatched cbrake cchambers care cinstalled con cthe caxle c-
cCORRECT cANS✔✔Tech ca
Metal cbrakes clines cmust cbe creplaced cwith c- cCORRECT cANS✔✔Steel
An cair cdisc cservice cwill cnot capply cair cis cgoing cto cthe cbrake cchamber ctechnician ca csays cthe ccaliper cslides cmay cbe cfrozen
ctechnician cb csays cthe cadjuster cmechanism cmay cbe cfrozen c- cCORRECT cANS✔✔Tech ca
Technician ca csays csome cair cbrake cclevises care cchecked cfor cwear cwith ca cfeeler cgauge ctechnician cb csays csome cair cbrakes
cclevises care cweld cto cthe cbrake cchamber cpush crod cwho's ccorrect c- cCORRECT cANS✔✔Both
A ctruck chas caxles cequipped cwith ctaper clocks cwhich cof cthe cfollowing cis cthe ccorrect cremoval cprocedure c- cCORRECT
cANS✔✔Using capplying ca csledgehammers con cthe cend cof cthe caxle
A ctruck chas cpulsating cbrake cpedal ctech ca csays cexcessive cbrake crotor cthickness cvariation ccould cthe ccause cand cshould cbe
cchecked cwith cmicrometer ctech cb csays cthat cexcessive cbrake crotor crunout ccould cbe cthe ccause cand cshould cbe cchecked cusing
ca cdial cindicator cwho's ccorrect c- cCORRECT cANS✔✔Both
The cparking cbrakes con ca ctruck cequipped cwith cair cbrakes care cslow cto capply cwhich cof cthe cfollowing cis cthe cmost clikely
cproblem c- cCORRECT cANS✔✔Plugged cexhaust cport
