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

An air system that is fully charged will typically have ___ psi of pressure.

250

125

200

2 / 40

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

When stopping or starting.

All answers listed.

When hauling food or milk products.

When unloading or loading.

3 / 40

The trailer height is correct for connecting a converter dolly to a second trailer when:

the trailer will slightly rise when the converter dolly is backed under it

the trailer will slightly lower when the converter dolly backed under it

the kingpin is resting behind the fifth wheel

the top of the kingpin lines up with the locking jaws

4 / 40

If hazardous material is spilling from your vehicle, do not move your vehicle:

In an upwind direction.

Any more that 450 feet.

Any more than safety required.

Any more than 500 feet.

5 / 40

Select the definition of "off-tracking."

it is when the trailer wheels go in a different direction from the front wheels

it is when the rear wheels of the vehicle follow a different path way than that of the front wheels

none of the answers listed

it is wheen the rear wheel skid and the front wheels maintain a straight path

6 / 40

Students exit the bus and walk:

The distance it takes to clear the danger zone.

At least 8 feet away from the side of the bus.

Across the street.

At least 10 feet away from the side of the bus.

7 / 40

There are 2 reasons as to why hauling liquids take special care. One reason is the ___center of gravity.

high

low

long

narrow

8 / 40

What is the standee line?

A line around each seat to help each passenger have a little personal space.

A 2 inch line on the floor that all passengers must stay behind.

A 2 inch line down the aisle to help keep passenger traffic flowing.

A line at the back of the bus where passengers must stand before exiting.

9 / 40

This object is required to be checked for damage, that it's secure, and strong enough to handle any cargo.

The apron

The fifth wheel

The header board

The platform

10 / 40

You may use DANGEROUS placards instead of separate placards for each Table 2 hazard class when:

Both of these conditions must be met.

The correct answer is not listed.

You have 1,001 pounds or more of two or more table 2 hazard classes, requiring different placards.

You have not loaded 2,205 pounds or more of any table 2 hazard class material at any one place (you must use the specific placard for this material).

11 / 40

When using turn signals, which of the following should be avoided?

signal before you exit

signal when you want to change lanes

signal just before you start to make a turn

signal when you are merging into traffic

12 / 40

This carries hydraulic fluid or air to the wheel brake assemby.

Connector rods

Brake lines/hoses

Slack pieces

Brake drums

13 / 40

The CDL manual indicates the last step on picking up students at the bus stop is as follows:

Make a final check to confirm all traffic stops before opening the bus door and signaling students to approach.

Place transmission in park or neutral and set parking brake.

Activate the amber flashing caution lights to warn vehicles that the bus will stop to load passengers soon.

Open the service door just enough to activate the alternating red light when traffic is in a safe distance from the bus.

14 / 40

You do not have to stop at railroad crossings, but must slow down and carefully check for other vehicles:

If a traffic signal is green.

At crossings marked as "exempt" or "abandoned".

Where a policeman or flagman is directing traffic.

All of these answers are correct.

15 / 40

You should follow behind other vehicles ______when traveling under 40 mph.

at a distance of 1 seconds for every 10 feet of your vehicle length

as close as possible so other drivers won't cut in front of you

at a distance of 1 second for every 5 feet of your vehicle length

at a distance of 1 second for every 15 feet of your vehicle length

16 / 40

All standing riders must stay:

In front of the standee line.

Within two feet of an emergency exit.

Behind the standee line.

Forward of the rear of the driver's seat.

17 / 40

Overhead inside mirror is used to:

see all of the students

see the area where students exit the bus

see the blind spot immediately behind the bus

monitor traffic that approaches and enters the blind spot area

18 / 40

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

open and open

open and latched

closed and latched

closed and open

19 / 40

Select the vehicle that off-tracks the most.

a 5-axle tractor that is towing a 40-foot long trailer

a 5-axle tractor that is towing a 45-foot long trailer

a 5-axle tractor that is towing a 32-foot long trailer

a 5-axle tractor that is towing a 52-foot long trailer

20 / 40

What is the normal operating range for a truck's oil pressure?

40-60 psi

This is engine-specific

30-75 psi

20-30 psi

21 / 40

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

The passenger area inside the bus.

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

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

The rear right and left tires touching the ground as well as 200 feet behind the bus.

22 / 40

What is the most important reason for doing a school bus inspection?

To check for flat tires.

To give the mechanic something to do.

For safety required by federal, state, and local laws.

To assist the school principal with their report.

23 / 40

You should___when driving down a long steep hill.

begin braking once the vehicle is 10 mph above safe speed

use the engine brakes only

release the brake once the vehicle is traveling 5 mph below the safe speed

repeatedly pump the brake pedal

24 / 40

Forward and back surge is powerful in this type of tanker.

Smooth bore

Waffle

Bulktruck

Hard stroke

25 / 40

What do you check when doing a visual inspection of the coupling?

the locking jaw is closed around the kingpin and there is no space beween the lower and upper fifth wheel

that the locking jaw is open around the kingpin and that there is some space between the lower and upper fifth wheel

that the locking jaw is closed around the kingpin and that there is no space between the upper and lower fifth wheel

none of the answers listed

26 / 40

Which of the following statements about downshifting is NOT true?

downshift when you get to the bottom of a hill

downshift before entering a curve

downshift before climbing a hill

downshift before starting down a hill

27 / 40

What does the drain valve for air tanks remove?

oil and water

oil and dirt

air and oil

water and air

28 / 40

How often should you check the tires on a placarded trailer that has dual tires?

Start of each day and every time you stop.

Each time you stop.

Once every three hours.

Once every 100 miles.

29 / 40

Buses may carry small-arms ammunition labeled ORM-D, emergency hospital supplies, and drugs. However, buses must never carry:

More than 750 pounds total of allowed hazardous materials, and no more than 100 pounds of any one class.

More than 1000 pounds total of allowed hazardous materials, and no more than 200 pounds of any one class.

More than 500 pounds total of allowed hazardous materials, and no more than 100 pounds of any one class.

More than 250 pounds total of all allowed hazardous materials.

30 / 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.

aggressive driving

distracted driving

road rage

defensive driving

31 / 40

The direction of liquid movement not prevented by baffles is:

None of the answers listed.

Side to side.

Back to front.

Bottom to top.

32 / 40

Is it mandatory that all vehicles with air brakes have low air pressure warning signals?

yes

for small vehicles only

for large vehicles only

33 / 40

When transporting both hazardous and non hazardous materials, your bills must:

Describe the hazardous materials first.

Have the hazardous materials highlighted.

Any one of the above.

Identify the materials by the letter x or rq in the hm column.

34 / 40

A bus has a GVWR of 22,000 pounds and seats 24 passengers. What CDL class is this vehicle?

Class B

Class A

Class D

Class C

35 / 40

Class A explosives must not be transported in a combination vehicle if the vehicle includes:

None of these answers are correct.

A 200 inch wheelbase trailer.

A placarded cargo tank.

Two or more trailers.

36 / 40

What is always required before loading, driving, or unloading a tanker?

Registration of driving plan

Clean the vehicle

An inspection

Shift into park

37 / 40

A baffled tanker has:

Bulkheads with holes that allow liquid to flow through it.

Balls floating in it to increase the speed of the liquid movement.

No side to side surge.

Separate compartments inside the trailer.

38 / 40

What are spring brakes?

they are brakes that automatically come on for a truck or trailer when the psi drops too low

they do not function when the psi falls below 30 psi

all of these answers are correct

they are powerful springs that hold back air pressure when driving

39 / 40

Select the statement that describes how you could damage the landing gear.

have the tractor and trailer aligned

have the trailer kingpin centered over the fifth wheel

back under the trailer in a straight path

back under the trailer at an angle

40 / 40

Play of the steering wheel should not exceed:

5 degrees

15 degrees

30 degrees

10 degrees

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