QUESTIONS AND ANSWERS
Modulatingxvalvex-
xControlxhandlexonxthexdashboardxthatxmayxbexusedxtoxapplyxspringxbrakesxgradually
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x4/32inchxinxfrontx
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Steeringxwheelxplayxofxwhatxdegreexcanxmakexitxhardxtoxsteerx-x10xdegreesxorxtwoxinches
Ifxmorexthanxone-forthxorxmorexleafxspringsxarexleakingx-
xItxwillxputxthexvehiclexoutxofxservice
Whatxwarningxdevicesxforxparkedxvehiclesx-
xThreexreflectivexwarningxtriangles,xorx6xfusesxorx3xliquidxburningxflares
WhatxshouldxthexPressurexbuildxinxthreexminutesxandxwhenxdoesxthexgovernorxcutoutx-
xPressurexshouldxbuildxfromx50psixtox90xpsixinx3minutes.xGovernorxcutxoutxatx120-140psi
Safetyxequipmentx-
xSparexelectricalxfusesxunlessxvehiclexhasxcircuitxbreakers,xthreexredxreflectivextrianglesxo
rxthreexredxburningxflares
ProperxidlexandxoperatingxOilxpressurex-x5-20xpsi
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Testingxforxhydraulicxleaksx-
xPumpxthexbreakxpedalxthreextimesxthenxapplyxfirmxpressurexandxholdxforx5xsecondsxthexp
edalxshouldxnotxmovexifxitxdoesxsomethingxisxwrong
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Roadxspeedx-xMph
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FourxbasicxtypesxofxRetardersx-xExhaust,engine,xhydraulic,xandxelectric
Whenxshouldxyouxturnxthexretarderxoff?x-
xWhenxyourxdrivexwheelsxhavexpoorxtractionxyouxshouldxturnxoffxitxinxicyxsnowyxorxwetxcon
ditions.
Howxfarxshouldxyouxlookxaheadx-xAboutx12-
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Whenxshouldxmirrorxadjustmentxtakexplacex-
xBeforexthexstartxofxaxtripxwhenxthextrailersxarexstraight
Whatxarexcurvedxmirrorsxcalledx-xFisheye,xspot,xbugeye
Turnsx-
xSignalxearlyxsignalxcontinuouslyxandxmakexsurexyouxturnxoffxyourxturnxsignalxafterxthextur
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Ifxyouxstopxonxanyxroadxyouxmustxputxoutxyourxwarningxdevicesx-xWithinxtenxminutes
Twoxwayxstreetxwarningxplacementx-x100ftxaheadx10ftxbackx100xftxback
Onexwayxstreexplacementx-x10,x100,x200xftxback
Fromxthextimexyourxeyesxseexaxhazardxuntilxyourxbrainxreactsxtoxitx-
xPerceptionxdistancexaveragextimexisx1x3/4xsecondsxatx55mphxit'sx142feet
Distancexcontinuedxtoxtravelxbeforexyouxphysicallyxhitxbrakesx-xReactionxdistancex3/4-
1second.xAtx55mphxit'sx61xfeetxaverage.
Distancexyourxvehiclexwillxtravelxwhilexbraking.x-
xBrakingxdistancex55mphxcanxtakexaboutx216xfeet
Totalxstoppingxdistancex-xAtx55mphxyourxvehiclexwillxhavextraveledx419xfeet
Whenxyouxdoublexyourxspeedxfromx20xtox40xmphx-
xTheximpactxofxfourxtimesxgreaterxthexbrakingxdistancexisxfourxtimesxlonger
Whenxyouxtriplexyourxspeedxfromx20xtox60xmphx-
xTheximpactxandxbrakingxdistancexisx9xtimesxlonger