1 . Failing to drain air tanks could result in:

Water accumulations freezing and causing brake failure.
Squishy brakes.
Too much air collecting in the tanks.
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2 . Escape ramps are ramps that can be used:

Only by automobiles, not trucks.
To leave the highway and enter a two-lane highway.
To stop runaway vehicles on steep downhills.
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3 . You are especially likely to encounter strong winds when:

Coming out of tunnels.
Going into tunnels.
Driving on shoulders.
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4 . An application pressure gauge shows:

How much air pressure is being applied to the brakes.
How much air pressure is available.
How much air pressure is required to stop a vehicle.
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5 . When starting an engine as part of a pre-trip inspection, the driver should:

Listen for unusual noises.
Place the engine in first gear.
Turn on the heater.
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6 . How many daily hours of sleep does an adult need to maintain alertness?

Six to seven
Seven to eight
Eight to nine
Four to five
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7 . If a load is 10 feet long, it must be secured by a minimum of ____ tie-downs.

Two
Three
Four
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8 . If you are turning left at an intersection where there are two available turn lanes:

It is best to use the right lane.
It doesn’t matter which lane you use.
It is best to use the left lane.
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9 . If you are driving and the ABS light comes on, it means that the ABS:

Cannot work due to weather conditions.
Has just been activated.
Is not working properly.
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10 . When starting the engine of a truck with a trailer, you can tell that your vehicle's ABS is not working if:

The yellow light on the left rear of the trailer stays on.
The red light on the right side of the trailer flashes three times.
All the rear lights flash and then turn off.
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11 . If you see taillights ahead while you are driving in fog:

The lights may not indicate where the road is as the vehicle may have pulled off the roadway.
You can assume the vehicle ahead is on the road.
It may be an optical illusion.
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12 . When driving, it is important to:

Avoid using your mirrors while in heavy traffic.
Look only to the front and right side of the vehicle.
Look to the front, sides, and rear of the vehicle.
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13 . When conducting a check of the engine compartment during a vehicle inspection, you should not:

Check the engine oil level.
Check the coolant level.
Drain the brake fluid.
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14 . If you plan to transport hazardous materials, you will:

Need to obtain a hazardous materials endorsement.
Need to drive while using flashing lights.
Need to wear a gas mask.
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15 . When a vehicle is started, the coolant temperature should:

Decrease.
Rise slowly.
Jump quickly.
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16 . Rust around wheel nuts may mean:

It has rained recently.
The nuts could be loose.
The tires should be replaced.
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17 . If planning to back a vehicle where there may be overhanging objects, a driver should:

Cut wires or branches as necessary.
Inspect the area before backing.
Not worry about the obstacles.
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18 . You should ____ if the low pressure warning signal activates while you are driving.

Stop where you are and park
Exit the roadway as soon as safely possible
Continue driving normally
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19 . Roads are especially slippery right after it begins to rain because:

The water mixes with oil and grease on the road.
Tires are not made to drive in wet weather.
The water yet hasn't absorbed the dirt and grease.
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20 . Livestock:

Should never be carried on a trailer.
Should be placed in the front of a trailer.
Can create unstable driving conditions.
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21 . By beginning a left turn before reaching the center of an intersection, you:

Will likely complete the turn satisfactorily.
May hit other vehicles with the left side of your vehicle.
Can expect other drivers to move their vehicles to accommodate your turn.
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22 . When accelerating on a surface with poor traction, such as a wet road, a driver should:

Speed up quickly.
Speed up slowly.
Not be concerned about the pavement.
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23 . On slippery roads, you should:

Accelerate and slow down frequently.
Adjust your driving to match weather conditions.
Tailgate other vehicles.
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24 . Air brakes use ____ to function.

Compressed air
Liquid nitrogen
Carbon dioxide
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25 . You must have an air brake endorsement:

To use a vehicle with air brakes.
To drive any truck with a trailer.
To transport hazardous materials.
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26 . Wheel rims that have been welded should:

Be painted.
Be placed on tires in the rear of the vehicle.
Not be used.
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27 . Items on a flatbed:

Are usually heavy enough to not need to be strapped down.
Should not be strapped down if you are driving more slowly than 35 mph.
Must always be secured.
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28 . Some water and compressor oil is usually found in the compressed air within an air brake system. The water and compressor oil:

Are necessary for the proper function of the system.
Should take up about 10 percent of the tank.
Should be removed regularly.
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29 . Having weight loaded in a way that creates a high center of gravity:

Increases the likelihood of a rollover.
Increases the likelihood that items will fall down.
Increases the difficulty of unloading the cargo.
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30 . Regulations regarding commercial vehicle weight and load securement may vary from state to state. Regarding these regulations:

The laws of the state where the trip originated take precedence.
The laws of the state in which the vehicle is physically located take precedence.
The driver can choose which state’s laws to follow.
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31 . What helps prevent wheel lockup when braking?

An Anti-Lock Braking System (ABS)
Air brakes
An alternator
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32 . To obtain a hazardous materials endorsement, a person must be:

A U.S. citizen or permanent resident.
Perform their own background check.
New to the United States.
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33 . When driving at highway speeds, you should watch the road about ____ ahead of your vehicle.

One block
100 yards
A quarter mile
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34 . Vehicles equipped with Anti-Lock Braking Systems (ABS) have ____ malfunction lamps to indicate when the ABS is not working.

Green
Blue
Yellow
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35 . What color light indicates a vehicle's ABS is not working?

Green
Blue
Yellow
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36 . ____ are the most likely to be affected by strong winds.

Light vehicles
Heavy vehicles
Vehicles with open windows
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37 . Manual air tank drains should be:

Opened to drain the tanks after each day.
Left open while driving.
Sealed with glue.
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38 . Once cargo is secured onto a vehicle:

You do not need to inspect the cargo.
You should not let others inspect the cargo.
You should check the cargo every 150 miles.
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39 . When driving down a steep hill, your primary source of braking should be:

Engine adjustments.
The brakes.
The hand brake.
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40 . 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.
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41 . A low air pressure warning signal should activate:

When tank pressure falls below 120 psi.
When tank pressure falls below 60 psi.
When tank pressure falls below 10 psi.
When tank pressure falls below 5 psi.
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42 . Header boards:

Provide extra storage.
Protect the driver from being hit by cargo.
Have no benefits.
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43 . When traction is poor, a driver should accelerate especially slowly:

Because it is always good to accelerate slowly.
To keep from losing control of the vehicle.
To keep from accelerating faster than the vehicle ahead.
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44 . If there is a fire in your vehicle and you are not sure how to extinguish it, you should:

Use a fire extinguisher.
Try douse the flames with water.
Move away from the flames and wait for the firefighters.
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45 . Skids happen when:

Tires lose their grip on the road.
There is too much weight in the trailer.
ABS kicks in.
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46 . When driving on a long downhill slope, you should brake by:

Only using the brakes.
Mostly using the brakes and occasionally downshifting.
Downshifting and then using the brakes.
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47 . A second conviction of operating a CMV with a minimum blood alcohol concentration (BAC) of 0.04 percent will result in:

The loss of your CDL for life.
The loss of your CDL for five years.
The loss of your CDL for one year.
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48 . When it is difficult to see other vehicles, such as at dawn or dusk, you should:

Keep your lights off.
Turn your lights on.
Drive on the shoulder.
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49 . Emergency equipment in a vehicle is:

Only required for vehicles that are transporting hazardous materials.
Only required during interstate travel.
Required.
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50 . If you are taking the driving test and the route does not include a railroad crossing, you:

Will not have to do anything related to a crossing.
May have to explain how you would cross railroad tracks.
Will have to take a different route.
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