DMV CDL Tests

Downgrades

Before starting down a long, steep downgrade, what does the Tennessee CDL manual tell you to do?

AShift to a low gear before starting down the grade.

BWait until your speed builds and then try to downshift.

CCoast in neutral so the engine does less work.

DUse only the parking brake to control speed.

ABS

If the yellow ABS malfunction lamp stays on after the bulb check or comes on while you are driving, what should you assume?

AABS is fully operational on every wheel.

BYou may have lost ABS control at one or more wheels, but you still have regular brakes.

CThe parking brakes are set.

DYou should pump the brakes to reset the light.

Stopping Space

When stopping behind another vehicle, where should you stop?

AClose enough that no one can merge in front of you.

BFar enough back that you can see the rear tires of the vehicle ahead touching the pavement.

CWithin one foot of the vehicle ahead.

DOnly far enough back to turn on your four-way flashers.

Cargo Securement

After beginning a trip with cargo, when must you inspect the cargo and securement devices again?

AWithin the first 50 miles

BAfter the first 200 miles

COnly at the end of the trip

DOnly if the weather changes

Backing

What is the safest procedure when you must back a commercial vehicle?

ABack quickly so traffic is not delayed.

BUse only your mirrors and do not stop once moving.

CSound the horn once and back without checking the area.

DUse a helper when possible and agree on hand signals before backing.

Wet Brakes

According to the Tennessee CDL manual, what can wet brakes do?

ABecome weak, apply unevenly, or grab

BAlways improve traction in rain

CPrevent wheel lockup completely

DMake steering easier on downgrades

Traction

If the drive wheels begin to spin because you used too much power, what should you do first?

ATake your foot off the accelerator.

BPress harder on the accelerator.

CApply the parking brake immediately.

DSteer sharply away from the skid.

Skid Control

What causes most serious skids, according to the Tennessee CDL manual?

ADriving too fast for road conditions

BUsing mirrors too often

CTurning on your headlights too early

DChecking road signs too carefully

Railroad Crossings

How should you handle shifting while crossing railroad tracks?

ACross in a low gear and do not change gears while crossing.

BShift in the middle of the crossing if the engine lugs.

CCoast across in neutral.

DUse a higher gear so you clear the crossing faster.

Fatigue

Which of the following is listed as a warning sign that you should stop and rest?

AYawning repeatedly or rubbing your eyes

BMissing exits or traffic signs

CDrifting from your lane or hitting a shoulder rumble strip

DAll of the above

You must answer every question on this page before continuing.

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Tennessee CDL General Knowledge Practice Test 1

Page 1 — 10 practice questions

Instructions

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