1 . How many daily hours of sleep does an adult need to maintain alertness?

Six to seven
Seven to eight
Eight to nine

2 . When traveling in heavy traffic, the safest driving speed is:

The posted speed limit.
The speed of surrounding traffic.
A speed much slower than the flow of surrounding traffic.

3 . When other vehicles have trouble seeing you at dawn or dusk, you can increase your visibility by:

Turning on your four-way flashers.
Honking your horn.
Turning on your headlights.
Turning on your windshield wipers.

4 . While driving, you should:

Develop plans to get out of any dangerous situation that could arise.
Enjoy the scenery.
Never look at the mirrors.
Focus on your own driving and not worry about other drivers.

5 . When checking tire condition during the vehicle inspection, you should:

Ensure that the insides of the tires are more worn than the outsides of the tires.
Ensure that the outsides of the tires are more worn than the insides of the tires.
Ensure that the middles of the tires are more worn than the outsides of the tires.
Ensure that the tires have even wear.

6 . If a vehicle is found to be over-length during a pre-trip inspection, the driver should:

Trim the length of the load.
Ask someone else to drive.
Ensure flags and lights indicating the oversize load are fastened securely.
Drive without making any changes.

7 . Scan the road ____ ahead of your vehicle.

Two to three seconds
Five to six seconds
12 to 15 seconds

8 . When driving, it is important that you:

Develop plans to get out of potentially dangerous situations.
Enjoy the scenery.
Turn your head all the way around rather than use mirrors.

9 . When traveling down a steep downgrade:

The air brakes should be used.
Shift into a lower gear, then use brakes to supplement the braking effect of the engine.
The vehicle should be continually downshifted in the place of using the brakes.
The vehicle should be driven on the shoulder.

10 . Mirrors should be used:

Only when there may be an emergency.
Regularly.
By a helper to monitor your blind spots.

11 . When backing, it is best to:

Rely only on the passenger’s side mirror.
Try to back up quickly.
Turn toward the passenger’s side whenever possible.
Use a helper, if possible.

12 . During a static leakage test, the maximum leakage rate for a double combination vehicle is:

3 psi in one minute.
6 psi in one minute.
8 psi in one minute.
4 psi in one minute.

13 . A slack adjuster should move no more than ____ from where it is attached to the push rod.

Two inches
Five inches
One inch

14 . Trailers should:

Be overloaded to improve efficiency.
Not be overloaded because it is dangerous.
Not be overloaded because drivers are only paid to transport certain weights.
Be loaded with all the weight directly behind the cab.

15 . What can happen if your vehicle has a high center of gravity?

It may get better mileage.
It may be difficult for you to see the road.
It may tip over.
The tires may not be able to handle the weight.

16 . During a trip, gauges are:

Often misleading.
The only way a driver can learn of potential trouble with the vehicle.
A way to learn of potential trouble with the vehicle.

17 . As part of the vehicle inspection test, a CDL applicant may be asked to:

Check the engine oil level.
Replace a tire.
Remove the alternator belt.
Replace spark plugs.

18 . Air tank drains:

Allow rain water to enter air tanks.
Are used to drain water and oil from air tanks.
Should never be opened.
Must remain open while driving.

19 . If stopped on the side of the road, how should you alert other motorists?

Rely on your taillights.
Sound your horn.
Use your four-way emergency flashers.
Keep the driver's side door open.

20 . When using a mirror, you should:

Look quickly at the mirror.
Stare at the mirror for a long time.
Use only the driver’s side mirror.

21 . Which of the following is not a problem?

Loose or broken exhaust pipes
Loose or broken mounting brackets
Exhaust parts rubbing against fuel system parts
Exhaust system parts that are not leaking

22 . The tire load for a tire is stated:

On the side of the tire.
On the inside of the tire.
On the inside of the driver’s door.

23 . When operating a truck requiring a CDL:

You are never required to wear a seat belt.
You are required to wear a seat belt, but only if transporting more than 500 pounds of cargo.
You must always wear a seat belt.
You are required to wear a seat belt, but only if you are driving a tank vehicle.

24 . Pre-trip inspections should be done:

Differently each time in order to place emphasis on different items.
The same way each time to prevent you from forgetting anything.
Once in a while.

25 . What color are ABS malfunction lamps?

Orange
Yellow
Green
Blue

26 . When loading a trailer, it is important to:

Place as little weight as possible over the axles.
Place an appropriate amount of weight over the axles.
Not be concerned with how the cargo's weight is distributed.
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27 . When entering a curve, you should:

Shift into neutral.
Use the shoulder.
Downshift.

28 . How can a person check for a leak in hydraulic brakes?

Pump the brake pedal three times and hold the pedal for five seconds. If the pedal moves, there may be a problem.
Push the brake pedal down as far as possible and let go. If the brake pedal returns to its normal position, there may be a problem.
Push the brake pedal down as far as possible and let go. If the brake makes a squeak, there may be a problem.
Remove the rear wheel and listen for a noise when the brake pedal is depressed.

29 . Drivers talking to passengers in their vehicle should be viewed as:

Responsible drivers.
Distracted drivers.
Knowledgeable drivers.

30 . When backing a truck, you should:

Only use the side mirrors on the driver’s side.
Use both side mirrors.
Only use the side mirrors on the passenger's side.

31 . Blocking cargo:

Should never be done.
Should be done to prevent shifting of cargo.
Should only be done with welded material.

32 . What must be done if a load is over-length?

A warning flag must be placed on the end of the load.
The load may only be transported between 6 p.m. and 3 a.m.
The load must be shortened.
The emergency flashers must be activated.

33 . When traveling down a steep grade, you switch into a lower gear:

Before beginning the grade.
When you have already started the grade.
As far down the grade as possible.

34 . If a truck is equipped, a trailer brake hand valve can be used to:

Add fuel to the vehicle.
Prevent the vehicle from rolling back when being started from a stop.
Check the oil level.
Load cargo.

35 . Regardless the size of the cargo, it should be secured by at least ____ tie-down(s).

One
Two
Three
Four

36 . To make a stop in a vehicle using air brakes, the driver should:

Press down the brake pedal.
Lift the brake pedal toward them.
Push in the brake knob.
Pull out the brake knob.

37 . When traveling down a downgrade, the speed of a vehicle will likely:

Decrease.
Stay the same.
Increase.

38 . Truck tractors with air brakes built on or after March 1, 1997 must have:

An Anti-Lock Braking System (ABS).
Bluetooth.
GPS.
A rear back-up camera.

39 . Once stopped as a part of the stop/start maneuver, you should:

Use the four-way flashers.
Not use the four-way flashers because it is just a test, not an emergency.
Leave the vehicle in first gear.
Park in front of a fire hydrant.

40 . Steering wheel play should be no more than:

10 degrees.
25 degrees.
50 degrees.
75 degrees.

41 . When taking a driving test:

You must supply the same type of vehicle for which you will require a CDL.
You may supply any type of vehicle, even if it is not the type of vehicle for which you will be using with the CDL.
The testing station will supply the vehicle.

42 . A thin layer of ice that forms on road surfaces is called:

White ice.
Black ice.
Green ice.
Blue ice.

43 . A driver should stop after a short distance after changing a tire to:

Ensure that the wheel nuts are tight on the newly-changed tire.
Ensure that there is still enough air pressure in the tire.
Ensure that the correct tire was changed.
Ensure that changing one tire did not damage another tire.

44 . When taking the on-road driving skills test, you will be evaluated on your gear usage. You should not:

Avoid grinding or clashing gears.
Select a gear that does not rev the engine.
Forget to shift through an intersection.
Shift while taking a turn.

45 . The brake pedal is part of which braking system?

The service brake system
The parking brake system
The emergency brake system
The auxiliary brake system

46 . When it is difficult to see and you are traveling near other drivers, you should:

Use high beam lights.
Use low beam lights.
Use only the clearance lights.

47 . A low air pressure warning signal should activate:

When tank pressure falls below 120 psi.
When tank pressure falls below 55 psi.
When tank pressure falls below 10 psi.

48 . Which of the following is not a sign of a driver becoming tired?

Frequent blinking
Drifting from their lane
Feeling hungry

49 . During a vehicle inspection, ensure that lug nuts are all of the following, except:

Free of cracks.
Free of distortions.
Loose.
Free of rust.

50 . When traveling on a downgrade, a vehicle will:

Slow down.
Travel at the same rate as on level roadway.
Speed up.
Likely swerve to the right.