CDL Air Brake Practice Test Exam Questions With 100% Correct Answers

CDL Air Brake Practice Test Exam
Questions With 100% Correct Answers

Theiparkingioriemergencyibrakeioniaiheavyivehicleicanionlyibeiheldiinipo
sitionibyisomethingithaticannotileakiaway,ilike:


a.iFluidipressure
b.iSpringipressure
c.iAiripressure
d.iAnyiofitheiabovei-iCorrectiAnswer-b.iSpringipressure


Aistraightitruckioribusiairibrakeisystemishouldinotileakiatiairateiofimoreit
hani__ipsiiperiminuteiwithitheiengineioffianditheibrakeireleased.


a.i1
b.i2
c.i3
d.i4i-iCorrectiAnswer-c.i3


Yourivehicleihasidualiairibrakeisystem.iIfilowiairipressureiwarningicomesi
oniforitheisecondaryisystemioriforioneisystem,iyouishould:

, a.iBringitheivehicleitoiaisafeistopiandicontinueionlyiwhenitheisystemiisifi
xed.
b.iReduceiyourispeed,ianditestitheiremainingisystemiwhileiunder-way.
c.iReduceiyourispeed,iandidriveitoitheinearestigarageiforirepairs.
d.iContinueiatinormalispeediifionlyitheisecondaryisystemifails.i-
iCorrectiAnswer-

a.iBringitheivehicleitoiaisafeistopiandicontinueionlyiwhenitheisystemiisifi
xed.


Ifiyourivehicleihasianialcoholievaporator,iitiisithereito:


a.iRiditheiwetitankiofialcoholithaticondensesiandisitsiatitheibottom.
b.iEliminateitheineediforidailyitankidraining.
c.iBoostitankipressureitheisameiwayithatisuperchargersiboostiengines.
d.iReduceitheiriskiofiiceiinitheiairibrakeivalvesiinicoldiweather.i-
iCorrectiAnswer-

d.iReduceitheiriskiofiiceiinitheiairibrakeivalvesiinicoldiweather.


Airibrakingitakesimoreitimeithanihydraulicibecauseiair:


a.iBrakesiuseidifferentibrakeidrums.
b.iTakesimoreitimeitoiflowithroughitheilinesithanihydraulicifluid.
c.iBrakesirequireiheavierireturnisprings.