1 . When driving:

You should always drive at the posted speed limit.
You should always drive slightly below the posted speed limit.
You should adjust your speed according to conditions.
You should drive as fast as possible.

2 . A CDL is issued for:

One year.
Two years.
Three years.
Five years.

3 . A distracted driver:

Usually reacts well to hazards.
Usually has slowed perception.
Is usually aware of what is happening around them.
Is a good person to follow.

4 . A driver should ensure that:

The truck is overloaded.
The truck is properly loaded.
The cargo is mostly in the front of the trailer.

5 . Regrooved tires are:

Allowed only on the front of a bus.
Allowed only on the rear of a bus.
Not allowed anywhere on a bus.

6 . What is black ice?

A thick layer of ice on the road
A thin layer of ice on the road
Ice that is black from debris on the road
Ice that is easily seen

7 . Poisonous fumes can enter the cab due to:

A defective exhaust system.
The wrong type of fuel being used.
A lack of oil in the engine.
Under-inflated tires.

8 . A one-way check valve:

Drains the water and compressor oil from the air tanks.
Prevents air from escaping if the air compressor has a leak.
Activates the emergency brakes when there is a leak.
Holds the spring brakes in position until they are used.

9 . As part of the vehicle inspection test, you will be asked to:

Explain what you are inspecting and why you should inspect it.
Change the coolant.
Replace a headlight.
Clean windows.

10 . When driving a vehicle equipped with an Anti-Lock Braking System (ABS), you should:

Stop harder than you would in a vehicle not equipped with ABS.
Use extra braking force to ensure the ABS kicks in.
Brake as you would in a vehicle not equipped with ABS.
Brake with less force than you would in a vehicle not equipped with ABS.

11 . If you are being tailgated, you should:

Drive on the shoulder.
Pull off the roadway.
Drive faster.
Allow the vehicle to pass.

12 . Placards should be used:

Any time a vehicle is carrying hazardous materials.
If there is open space in the truck.
If the amount of hazardous materials in the truck exceeds 200 pounds.
If the hazardous materials create an inhalation hazard.

13 . Pressing and releasing a brake pedal unnecessarily can:

Release air faster than it can be replaced.
Add more air to the braking system.
Make the brake pedal more sensitive.
Create a loud noise.

14 . 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

15 . 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.

16 . An applicant must be at least ____ to obtain a CDL for use in interstate commerce.

18 years old
21 years old
23 years old
25 years old

17 . Driving with a cargo of hanging meat in a trailer:

Is discouraged during the summer months.
Can be problematic because animals are attracted to the smell of the meat.
Is challenging because the load has a high center of gravity.

18 . A person driving with an open window in cold weather may be:

A distracted driver.
A person who is dressed inappropriately.
A person who likes fresh air.

19 . What do anti-lock brakes do?

Help a driver avoid wheel lockup
Lock up the front wheels
Prevent a vehicle from accelerating while traveling uphill
Prevent a vehicle from accelerating while traveling downhill

20 . If feeling tired and frequently yawning, you should:

Press on and continue driving.
Get some coffee.
Drive faster.
Pull over and take a nap.

21 . If you are confronted by an aggressive driver, you should:

Make eye contact with the driver.
Stay in the driver's lane.
Try to race the driver.
Ignore the driver's gestures.

22 . A fatigued driver:

Is extra alert.
Should take over-the-counter remedies to wake them up.
May make critical decisions too slowly.
Is usually more conscientious than a typical driver.

23 . An open automobile window in cold weather may indicate that the driver is:

Driving impaired.
Inappropriately dressed.
Using the heat inside their vehicle.
Enjoying the fresh air.

24 . When completing an offset back/left parking maneuver, a driver should:

Pull straight forward, then back to the left.
Drive straight back, then pull forward to the left.
Pull straight forward, then drive straight back.

25 . 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.

26 . Bridges usually:

Freeze, but only once the temperature drops significantly below 32 degrees Fahrenheit.
Freeze after other road surfaces freeze.
Freeze before other road surfaces.
Have heaters to prevent them from freezing.
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27 . How should you check your hydraulic brakes?

Pump the brakes three times, then apply firm pressure to the brake pedal for five seconds. The brake pedal should not move.
Pump the brakes three times, then apply firm pressure to the brake pedal for five seconds. The brake pedal should slowly move toward the floor.
Pump the brakes three times, then apply firm pressure to the brake pedal for five seconds. The brake pedal should slowly rise.
Pump the brakes three times, then apply firm pressure to the brake pedal for five seconds. The brake pedal should be easy to push to the floor.

28 . When exiting your vehicle, you must maintain ____ with the vehicle at all times.

One point of contact
Four points of contact
Three points of contact
Two points of contact

29 . Areas of the road that are shaded:

Usually do not freeze.
Usually do not contain moisture, so they can’t freeze.
Will remain slick after ice on other areas of the road has melted.
Should always be avoided.

30 . In a dual air brake system:

Each system has separate air tanks, hoses, and lines.
The systems share air tanks, but each has its own separate hoses and lines.
Each system uses the same lines and hoses.
One system is the main braking system and a second system is ready to be used if the first one fails.

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

Add fuel to the truck.
Prevent the truck from rolling back when being started from a stop.
Check the engine oil level.

32 . What should you do if the braking system cannot build up hydraulic pressure?

Upshift.
Downshift.
Hold the brake pedal down as far as it will go.

33 . Broken suspension parts:

Should not concern you.
Should be repaired, but do not need to be repaired immediately.
Cannot be identified.
Are extremely dangerous.

34 . Anti-Lock Braking Systems (ABS):

Reduce normal braking capacity.
Are equipped in addition to other braking systems and do not reduce normal braking power.
Are not effective on larger vehicles.
Are illegal in some states.

35 . 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.

36 . Distracted driving:

Always comes as a result of physical distraction, not mental distraction.
Can be elevated by pre-programming radio stations.
Can be avoided by eating while driving.
Can be avoided by not engaging in complex conversations while driving.

37 . While operating a CMV:

You are not required to wear a safety belt.
You are only required to wear a safety belt if your vehicle does not have airbags.
You are required to wear a safety belt, but only if hauling more than 1,000 pounds of cargo.
You are always required to wear a safety belt.

38 . Do not operate a vehicle if any brake drums have cracks that are larger than ____ of the width of the friction area.

One half
One third
One fifth

39 . When stopping:

The brake pedal should be pressed down gradually.
The brake pedal should be pushed down quickly.
The brake pedal should be pressed down repeatedly, but not held down continuously.
The amount of force required on the brake pedal will be the same each time you slow or stop.

40 . To receive a hazardous materials endorsement, an applicant will be required to supply:

Their fingerprints.
Their shoe size.
A list of countries visited within the last 10 years.
Their employment history for the previous five years.

41 . If approaching a railroad crossing while driving a placarded vehicle, you should always:

Activate your four-way flashers.
Stop within five feet of the tracks.
Change gears while on the tracks.
Change lanes while on the tracks.

42 . Why are multi-speed axles and auxiliary transmissions used?

To make a vehicle operate more smoothly
To provide extra gears
To improve a vehicle's gas mileage

43 . A vehicle stopped at a green light may indicate that the driver:

Is impaired.
Is colorblind.
Does not know the rules of the road.
Is very patient.

44 . When conducting a vehicle inspection, you will need to identify all of the following, except:

The power steering belt.
The water pump belt.
The alternator belt.
The water compressor belt.

45 . Drivers are usually the least alert:

In the morning.
In the early evening.
Late at night.
In the afternoon.

46 . 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.

47 . If you are approaching a law enforcement vehicle that is stopped on the right side of the road with its lights flashing, you should:

Accelerate past the vehicle.
Stay in the right lane to pass the vehicle.
Move into the left lane to pass the vehicle.
Drive on the shoulder to pass the vehicle.

48 . If an aggressive driver is involved in a crash on the road ahead of you, you should:

Block the driver in with your vehicle.
Stop after the crash scene and report the driver’s aggressive behavior to the police.
Continue driving and mind your own business.
Pull over and yell at the driver.

49 . The center of gravity in a trailer should be:

As high as possible.
As low as possible.
At the rear of the trailer.

50 . The penalty for a first-time violation of an out-of-service order is:

A $25 fine.
A warning.
A license suspension for at least 90 days.
A license suspension for 10 years.