alabama
CDL Practice Test

The practice tests below offer CDL practice test questions in all the different topic areas you’ll see on the Alabama CDL test. The CDL tests are free and can be taken as often as you’d like to help you in your preparation for earning an Alabama commercial driver's license. You will be presented with 40 questions and you must answer 34 questions correctly to pass. There is a 50 minute time limit. You may not go back once you answer a question. Click the “Start Test” button below to start your Alabama CDL practice test.

1 / 40

What should you hear when you have the hand valve on and are testing the trailer brakes by opening the service air line at the back of the trailer?

the engine brake to kick on

the emergency line valve to release air

air leaving the open valve

the service brakes more to a fully applied position

2 / 40

Select the true statement in regards to when a bulk tank vehicle stops at an intersection on a slippery surface:

The movement of the liquid may push the truck into the intersection.

The trailer may slide to the side due to the rocking motion.

The trailer may slide into the oncoming traffic.

The liquid may leak out of the tank.

3 / 40

Do not tow or push a disabled bus with riders aboard the vehicle, unless:

You are also a class a tow truck driver.

Bus is on a drawbridge.

Getting off the bus would be unsafe.

Your employer tells you to.

4 / 40

Which of the following should you do when confronted by an aggressive driver?

ignore rude gestures and refuse to react negatively

avoid eye contact

if you can safely do it, call the police from a cell phone

all of these answers are correct

5 / 40

Who is responsible for certifying on the bills of lading that the hazardous materials are prepared properly?

The shipper

The driver

The carrier

The dock workers

6 / 40

Anti-lock brakes:

Keep your wheels from locking during hard brake application.

Lengthen stopping distance.

Are not available in mosst busses.

Work only when you activate in-cab switch.

7 / 40

Which seats not securely fastened to the bus are usually allowed?

The driver's seat only.

None of these answers are correct.

Any of the last row seats.

Window seats.

8 / 40

How do you make sure the trailer height is correct before coupling?

visually check that they are level height wise

visually check that the rear trailer is lower than the fifth wheel so that the trailer raises slightly when the dolly is pushed under it

you do not need to do a visual check

visually check that the lead trailer is higher than the fifth wheel so that the trailer will lower when the dolly is pushed under it

9 / 40

Buses are prohibited from carrying all of the following hazardous materials except:

Properly secured tear gas canisters.

Materials labeled radioactive in the space occupied by people.

Properly labeled poison gas canisters.

Small-arms ammunition.

10 / 40

The act of operating a motor vehicle in a selfish, bold, or pushy manner, without regard for the rights or safety of others is known as.

distracted driving

defensive driving

aggressive driving

road rage

11 / 40

The emergency air line is _____and the service air line is____.

yellow, white

red, blue

red, green

white, blue

12 / 40

How should you know when to shift?

road speed and wind speed

engine speed and road speed

every 3 to 5 seconds or engine speed

engine speed and the shift indicator light

13 / 40

This object should not have any missing parts, be fully raised, the crank handle is secured, and that there is no damage to the frame.

Drop arm

Landing gear

Release arm

Lifts/doors/tires

14 / 40

Before pulling away, make sure the landing gear of the trailer is:

Raised and that the handle is hanging free.

Down and that the handle is secured.

Down and that the handle is hanging free.

Raised and that the handle is secured.

15 / 40

What is the most important reason for doing a vehicle inspection?

to insure that you will achieve the best gas mileage

federal and state laws require you to inspect your vehicle

to save you money by preventing costly repairs

safety for yourself and other road users

16 / 40

Signs of distracted drivers include:

individuals driving at a consistent speed above the speed limit

drivers having conversations with passengers

individuals listening to music too loudly

vehicles exiting the roadway

17 / 40

In Column 1 the symbol "I" means:

Invalid substance.

Iodine.

International restrictions.

International transportation.

18 / 40

Select the statement that is true in regards to what is required of a driver with a double or triple trailers:

all of the answers listed

drive with extra care in mountains and in bad weather

increase your following distance

none of the answers listed

19 / 40

Select the statement that best describes what the service line is for.

all answers listed

it is controlled by the foot brake and carries air

it is controlled by the trailer hand brake and carries air

it is controlled by the foot brake or trailer hand brake and carries air

20 / 40

This object should not be damaged, bent, or rusted through and be evenly centered with the tires and dual wheels evenly separated.

Budd spacing or spacers

Lug bolts

Tire rims

All answers listed

21 / 40

How high should you crank the landing gear?

so that you can clear railroad tracks

until the crank handle is loose

for it to be 6 inches above the ground

as high up as it will go

22 / 40

You should adjust all the outside left and right side convex mirrors to see:

The children's exit path out of the main bus door.

200 feet behind the bus.

The right and left front tires touching the ground.

The entire area to the rear of the mirror along the side of the bus.

23 / 40

Which of the following statements about bus evacuation is true?

If time allows, backup to the stop before evacuating the bus.

If time allows, notify the police.

If time allows, notify the dispatcher about evacuation location, conditions, and type of assistance needed.

If time allows, walk through the bus and close all windows.

24 / 40

Select when you should use the hand valve to park a combination vehicle.

never

when parking at a loading dock

when parking on a downgrade

when parking in a commercial lot

25 / 40

Which of the following statements about the bus interior is false?

The seats must be safe for riders all seats must be securely fastened to the bus.

If you use your outside lights, you don't need to turn on red emergency door light.

If there is a red emergency door light, it must work.

Never drive with an open emergency exit door or window.

26 / 40

One reason hauling liquids in tank vehciles require special care is:

Because of the extreme weight.

Because of strong winds.

Because of the movement of the liquid.

Because of uneven expansion.

27 / 40

An example of a low pressure warning signal for air brakes is:

all of these answers are correct

red light

a buzzer

a wig wag mechanical arm

28 / 40

Select the answer that is controlled by the foot brake.

the shut off valves

the service air line

the emergency brake

the engine brake

29 / 40

Select the inappropriate way to test for the low pressure warning signal.

turn off the engine

ask for a pedestrian to listen for the signal

have the electrical power on

decreased the air pressure by stepping on and off the brake pedal

30 / 40

Make sure____when the front trailer supports are up and the trailer is sitting on the tractor.

neither of the answers listed

both of the answers listed

there is enough space for clearance between the landing gear and the tractor frame

there is enough space for clearance between the nose of the trailer and the tops of the tractor tires

31 / 40

You need to be extra careful when driving smooth bore tanks:

When stopping or starting.

When unloading or loading.

When hauling food or milk products.

All answers listed.

32 / 40

Drivers placard their vehicle to _____ the risk.

communicate

elevate

minimize

take away

33 / 40

Select the portion of the combination vehicle that is most likely to turn over suddenly when pulling a double trailer:

the tractor

all are equally likely

the front trailer

the back trailer

34 / 40

When driving tank vehicles you should:

Come to a stop before entering a curve and then accelerate through it.

Maintain the posted speed limit as you enter the curve.

None of the answers listed.

Decrease your speed before entering a curve and then accelerate through it.

35 / 40

What is the best way to stop all skids?

accelerate and countersteer

restore traction back to the tires

quickly turn the steering wheel side to side

use controlled or stab braking

36 / 40

Which of the following is NOT an acceptable type of marking for hazardous materials?

Descriptive name in roman print

Name in italics

Identification number

Un marks

37 / 40

Some school busses are marked with the LNG placard. What does LNG stand for?

Lifted neutral graftring.

None of these answers are correct.

Low-range pneumatic gearbox.

Liquified natural gas.

38 / 40

Where is compressed air stored?

in the hose lines

in the gasoline tank

in the compartment for the engine

in the storage tank

39 / 40

In what position should the converter dolly air tank drain valves and pintle hook be in?

closed and latched

closed and open

open and latched

open and open

40 / 40

What are you checking when looking at the lubrication level on a dipstick?

The horn fluid level

The oil level

The power steering fluid level

The windshield wiper fluid level

Your score is

The average score is 0%

5/5 - (4 votes)

CDL Category Practice Tests

How To Get an alabama Commercial Drivers License

Applicants must be of the legal age of 18 or older. Those between the ages of 18 and 21 are only permitted to drive a commercial vehicle within the state of Alabama. Those age 21 and older may drive a commercial vehicle across state borders. Only those aged 21 and older may apply for their hazardous materials endorsement. All applicants must possess a DOT Medical Card.

An applicant’s driving record will be considered when applying for a CDL license. There are specific items in which a driver will be disqualified for a commercial driver’s license. These include:

Any suspension/revocation 36 months before submitting an application.

Any six-point violation or conviction of operating a motor vehicle impaired 24 months prior to submitting an application.
Any current denial, cancellation, suspension, or revocation of driver’s license.
Possessing multiple driver’s licenses from various States.
Not meeting certifications on BFS-103 CDL Certification Form.

Alabama requires all CDL applicants to complete both a knowledge test and a skills test. Alabama offers the following CDL license endorsements:

S – School Bus
T – Double Trailer
P – Passenger
N – Tank Vehicles
H – Hazardous Materials

Hit the Open Road

alabama CDL License Test Tips

The knowledge tests are presented in written form for Class A, B, and C applicants. All classes are required to take a 50 question assessment. Those applying for a Class A CDL will need to complete an additional 20 questions about combination vehicles. Applicants seeking to drive vehicles with air brakes must complete a 25 question air brake assessment. Those seeking any endorsement other than hazardous materials must complete a 20 question assessment that is endorsement specific. Those applying for the hazardous materials endorsement must complete a 30 question knowledge test. All applicants must receive a score of 80 percent or higher on each test to pass.

A skills test is required for all CDL applicants regardless of Class. The School Bus and Passenger Endorsements require a skills test as well. All applicants applying for Air Brakes Certification must use a vehicle that is equipped with air brakes for their skills test. The CDL skills test consists of a vehicle inspection test, basic control skills test, and a driving test. All three test sections must be passed for CDL approval. Failure in any skills test area automatically fails the applicant.

Additional Information

CDL Testing by the Alabama Law Enforcement Agency

The Alabama Law Enforcement Agency administers the certifying and testing of commercial drivers in the state. To get more information contact them via: Website: https://www.alea.gov/dps/driver-license
Phone: 334.242.4400
Email: [email protected]

Additional Alabama CDL Helpful Links

Please use the links below to access more valuable Alabama CDL testing resources and to learn more about driving test resources for the state of Alabama.

alabama CDL Practice Test