MICHIGAN CDL AIR BRAKES QUESTIONS
AND CORRECT ANSWERS
3A2differentA2brakingA2systemsA2thatA2makeA2upA2AirA2BrakesA2-A2Ans--
ServiceA2Brake,A2ParkingA2Brake,A2EmergencyA2Brake
AirA2CompressorA2-A2Ans--
PumpsA2airA2intoA2storageA2tanksA2andA2connectedA2toA2theA2engineA2viaA2gearsA2orA2aA2v
-belt.
AirA2CompressorA2GovernorA2-A2Ans--
ControlsA2whenA2theA2airA2compressorA2willA2pumpA2airA2intoA2theA2airA2storageA2tanks.A2
WhenA2tankA2pressureA2risesA2toA2theA2cut-
outA2level,A2theA2governorA2stopsA2theA2compressorA2fromA2pumping.A2WhenA2theA2tankA2
pressureA2fallsA2toA2theA2cut-
inA2level,A2theA2governorA2allowA2theA2compressorA2toA2pumpA2again.
Cut-OutA2LevelA2-A2Ans--
125A2PSIA2(GovernorA2stopsA2theA2compressorA2fromA2pumpingA2air)
Cut-InA2LevelA2-A2Ans--
100A2PSIA2(GovernorA2allowsA2compressorA2toA2startA2pumpingA2again)
AirA2StorageA2TanksA2-A2Ans--HoldsA2theA2compressedA2air.
AirA2TankA2DrainsA2-A2Ans--ValveA2toA2drainA2oilA2andA2waterA2fromA2theA2tanks.
AlcoholA2EvaporatorA2-A2Ans--
PutsA2alcoholA2intoA2theA2airA2systemA2toA2reduceA2riskA2ofA2iceA2inA2theA2valves.
SafetyA2ValveA2-A2Ans--
InA2theA2firstA2takeA2airA2isA2pumpedA2inA2to...protectsA2theA2tankA2andA2systemA2fromA2too
A2muchA2pressure.A2SetA2toA2openA2atA2150A2PSI.
FoundationA2BrakesA2-A2Ans--UsedA2atA2eachA2wheel...mostA2commonA2typeA2isA2theA2S-
CamA2drumA2brake.
Drums,A2ShoesA2andA2LiningsA2-A2Ans--
DrumsA2locatedA2onA2eachA2endA2ofA2theA2axles.A2WheelsA2areA2boltedA2toA2theA2drums.A2
ToA2stop,A2theA2brakeA2shoesA2andA2liningsA2areA2pushedA2againstA2theA2insideA2ofA2theA2
drum.
AND CORRECT ANSWERS
3A2differentA2brakingA2systemsA2thatA2makeA2upA2AirA2BrakesA2-A2Ans--
ServiceA2Brake,A2ParkingA2Brake,A2EmergencyA2Brake
AirA2CompressorA2-A2Ans--
PumpsA2airA2intoA2storageA2tanksA2andA2connectedA2toA2theA2engineA2viaA2gearsA2orA2aA2v
-belt.
AirA2CompressorA2GovernorA2-A2Ans--
ControlsA2whenA2theA2airA2compressorA2willA2pumpA2airA2intoA2theA2airA2storageA2tanks.A2
WhenA2tankA2pressureA2risesA2toA2theA2cut-
outA2level,A2theA2governorA2stopsA2theA2compressorA2fromA2pumping.A2WhenA2theA2tankA2
pressureA2fallsA2toA2theA2cut-
inA2level,A2theA2governorA2allowA2theA2compressorA2toA2pumpA2again.
Cut-OutA2LevelA2-A2Ans--
125A2PSIA2(GovernorA2stopsA2theA2compressorA2fromA2pumpingA2air)
Cut-InA2LevelA2-A2Ans--
100A2PSIA2(GovernorA2allowsA2compressorA2toA2startA2pumpingA2again)
AirA2StorageA2TanksA2-A2Ans--HoldsA2theA2compressedA2air.
AirA2TankA2DrainsA2-A2Ans--ValveA2toA2drainA2oilA2andA2waterA2fromA2theA2tanks.
AlcoholA2EvaporatorA2-A2Ans--
PutsA2alcoholA2intoA2theA2airA2systemA2toA2reduceA2riskA2ofA2iceA2inA2theA2valves.
SafetyA2ValveA2-A2Ans--
InA2theA2firstA2takeA2airA2isA2pumpedA2inA2to...protectsA2theA2tankA2andA2systemA2fromA2too
A2muchA2pressure.A2SetA2toA2openA2atA2150A2PSI.
FoundationA2BrakesA2-A2Ans--UsedA2atA2eachA2wheel...mostA2commonA2typeA2isA2theA2S-
CamA2drumA2brake.
Drums,A2ShoesA2andA2LiningsA2-A2Ans--
DrumsA2locatedA2onA2eachA2endA2ofA2theA2axles.A2WheelsA2areA2boltedA2toA2theA2drums.A2
ToA2stop,A2theA2brakeA2shoesA2andA2liningsA2areA2pushedA2againstA2theA2insideA2ofA2theA2
drum.