DMVCDLTESTanswered - brakepedaltocontrolyourspeedonadowngrade. Thebr...

DMVCDLTESTanswered

Youshouldknowthatbrakesarefadingwhen:-answer-Youhavetopushharderonthe

brakepedaltocontrolyourspeedonadowngrade.Thebrakesystemthatappliestheuseofthebrakeswhenthedriverusesthebrakeis

the:-answer-Servicebrakesystem.

Theaircompressorgovernorcontrols:-answer-Whenairispumpedintotheairtanks.

Ifyourtruck'saircompressorhasitsownoilsupply.Whenshouldyoufirstcheckitsoil level?-answer-Beforedriving.Forairbrakesystemsingoodconditionstheaircompressorshouldstartpumpingat

about:-answer-100psi

Ifyourvehiclehasanalcoholevaporator,itisthereto:-answer-Reducetheriskofice

inairbrakevalvesincoldweather.Someairbrakesystemshaveanalcoholevaporator.Whatwillhappenifyoudon'tkeep theunitfilledwithalcohol?-answer-Icewillforminthestoragetanksandcausethe brakestofail.

Thesafetyvalveissetautomaticallytoreducepressureat:-answer-150psi

Thebrakepedalinanairbrakesystem:-answer-Controlstheairpressureappliedto

putonthebrakes.

Repeatedlypresssingandreleasing(fanning)thebrakepedalmayresultin:-

answer-Thelossofairpressure.

Themostcommontypeoffoundationbrakefoundonheavyvehicleisthe:-

answer-S-camdrum.

S-cam:-answer-Forcesthebrakesshoesagainsttheinsideofthebrakedrum.

Whenthebrakesareappliedthebrakeshoesorliningsarepressedagainstthe:-

answer-Brakedrumsordisc. 1 / 2

Allairbrakeequippedvehicleshave:-answer-Asupplypressuregauge.

Theapplicationpressuregaugeshowshowmuchairpressureyou:-answer-Are

applyingtothebrakes.

Stoplightswitch:-answer-Turnsonthebrakelightstowarndriversbehindyou.

Undernormalconditionsinordertoengagetheparkingbrakesthedrivermustfirst:-

answer-Makesuretheairbrakesystemisfullypressurized.

Thebrakingpowerofthespringbrakes:-answer-Dependsontheservicebrakesbeing

inadjustment.

Theparkingoremergencybrakeontrucksandbusescanonlybeheldby:-

answer-Springpressure

Ifthespringbrakesareonyoushouldpushthebrakepedal:-answer-Never

Ifyourtruckorbushasdualparkingcontrolvalves,youcanusepressurefroma

separatetankto:-answer-Releasethespringemergency/parkingbrakestomovea

shortdistance.Thedrivermustbeabletoseeawarningbeforeairpressureintheserviceairtanks

fallsbelow:-answer-60P.S.I.

Themostimportantthingtodowhenthelowairwarningcomeson:-answer-Stopand

safelyparkassoonaspossible.Yourvehiclehasadualairbrakesystem.Ifalowairpressurewarningcomesonforthe

secondarysystem;youshould:-answer-Bringthevehicletoasafestopandcontinue

onlywhenthesystemisfixed.

Ifyourtruckhasadualairsystemandoneofthesystemislowpressure:-

answer-Eitherthefrontor.rearbrakeswillnotbefullyoperational.

TocheckthefreeplayofmanualslackadjustersonS-cambrakes,youshouldparkon:

-answer-Levelground,chockthewheels,andturnofftheparkingbrakes.

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