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

Before transporting a sealed load, you must check:

a small sample of whatever is inside

a picture of whatever is inside

all of these answers are correct

that you don't exceed gross weight and axle weight limits

2 / 40

What is the safest way to stop unruly behavior on the bus?

Keep checking the rear view mirror so you can see what happened and report to the principal.

Pull off the road in a safe location, secure the bus, stand up, and tell the students what behavior you expect of them.

Yell loudly for the students to sit down and behave themselves.

Have the unruly students move to the front of the bus.

3 / 40

Select the true statement in regards to stopping distance and speed:

Larger / heavier vehicles generally take longer to stop.

You require 4 times as much stopping distance when driving at 40 mph compared to 20 mph.

A wet road will double the stopping distance at any speed.

All answers listed.

4 / 40

The minimum tread depth for tires other than the front tires is ____.

3/32

2/32

1/32

4/32

5 / 40

The container for the mechanism that transforms the steering column action into wheel action is:

Steering linkage

Steering hoses/box

Locking pin

Air brake system

6 / 40

How do you check the coolant level?

Inspect the reservoir sight glass or remove the radiator cap if the engine isn't hot.

None of the answers listed.

While wearing rubber gloves and safety glasses.

Remove the radiator cap once it is at operating temperature.

7 / 40

The Emergency Response Guide, ERG, can best be explained as _____.

a guide explaining what materials can be hauled together in the same vehicle and a guidebook for firefighters, police, and industry workers on how to protect themselves and the public from hazardous materials

none of these answers are correct

a guidebook for firefighters, police, industry workers, truck drivers, dock workers, and shippers on how to protect themselves and the public from hazardous materials

a guide explaining what materials can be hauled together in the same vehicle

8 / 40

Select the statement that tells you how you can check the low pressure warning signal.

Turn the electrical power on and apply pressure on and off the brake pedal to increase air tank pressure. The low air pressure warning signal must come on before the pressure increases to more than 60 psi in the air tank.

Turn the electrical power on and apply pressure on and off the brake pedal to decrease the air tank pressure. The low air pressure warning signal must come on before the pressure drops to less than 60 psi in the air tank.

Turn the electrical power off and apply pressure on and off the brake pedal to decrease air tank pressure. The low air pressure warning signal must come on before the pressure drops to less than 30 psi in the air tank.

The low pressure warning signal is only testable by the factory.

9 / 40

What school bus accidents should be reported?

All accidents.

No accidents.

Only accidents casusing injury.

Only accidents determined to be the fault of the bus driver.

10 / 40

What handling effect should you expect when your tank has baffles?

The surge will be slower than a tank without baffles.

There is no difference in handling when you have baffles.

There will not be as much side to side surge compared to a tank without baffles.

There will not be as much front to back surge compared to a tank without baffles.

11 / 40

What are shippers trying to accomplish when they package the material?

Make it as light as possible.

Make it easy to open and close.

All of these answers are correct.

Make it easy to identify.

12 / 40

Select the true statement in regards to handing triples and doubles

due to off tracking, a triple bottom rig can come to a stop quicker than a 5 axle semi trailer

a sudden movement of the steering wheel may result in the rear trailer tipping over

none of the answers listed

due to the crack the whip effect, the rear trailer of a 100 foot triple is less likely to tip than a single trailer

13 / 40

The compressor is connected to the engine via _____?

lines

r-belt

stag gears

v-belt or gears

14 / 40

A commercial motor vehicle (CMV) is defined as:

all of these answers are correct

a vehicle transporting hazardous materials

a vehicle transporting 16 or more passengers

a vehicle with a gross weight over 26,001 lbs

15 / 40

If you are drowsy, you should _____ before you drive.

drink coffee

get sleep

do a little exercise

take a cold shower

16 / 40

In column 1, the "D" symbol means:

Detonators

Domestic restrictions

Domestic transportation

Devices

17 / 40

Select the correct setup for shut-off valves:

the rear shut-off valves are closed and the front trailer valves are open

the front and back shut-off valves are closed

the front shut-off valves are closed and the rear trailer valves are open

the front and back shut-off valves are open

18 / 40

Which trailer should be the first one after the tractor?

the trailer that weighs the most

the trailer that weighs the least

none of the answers listed

the trailer that is the shortest in length

19 / 40

The purpose for the emergency air line is:

to supply air to the trailer air tanks and, on combination vehicles, controls the emergency brakes

supply air to the trailer air tanks and on combination vehicles, controls the service brakes

none of the answers listed

supply air to the tractor air tanks and on combination vehicles controls the emergency brakes

20 / 40

What does the amount of liquid allowed in the tank depend on?

All answers listed.

The size of the tank.

Whether and how much the liquid will expand during the trip.

The legally allowed weight limits.

21 / 40

Which hazard classes must you NEVER smoke, or perform any activity involving fire, within 25 feet of?

Class 2 only

Class 1 only

Classes 1, 2, 3, and 4

Class 4 only

22 / 40

The transport index of a radioactive material:

Tells the degree of control needed during transportation.

Is something that only the shipper needs to worry about.

Is another way of writing the weight of the package.

None of these answers are correct.

23 / 40

You are inspecting the_____when looking for broken welds, cracks, holes, or other damage to the longitudinal frame member, cross members, box, and floor.

frame

apron

fifth wheel

catwalk

24 / 40

Which of the following is a recommended procedure when unloading the students?

Position yourself outside of the bus in front of crossover mirror to supervise unloading.

Let the students begin moving to the front of the bus before it's fully stopped to maximize efficiency.

Put the transmission in neutral gear and put on the brakes.

Tell students to remain seated until they are told to exit.

25 / 40

Select the true statement about empty trucks:

They have better traction on wet roads than full tanks.

They can take longer to stop than a truck with a full tank.

All answers listed.

They come to a stop faster when you use only the emergency brake.

26 / 40

A "transport index" relates to products that are:

Liquid

Overweight

Meant for human consumption

Radioactive

27 / 40

The designation RQ identifies the material's:

Regulatory quantity

Reference quotient

Regulatory quotient

Reportable quantity

28 / 40

Where can you find a shipper’s certification?

On the original shipping paper.

On all packages.

It is a separate document that all hazmat drivers must keep in their vehicles.

There is no such thing.

29 / 40

Animals and human foodstuffs should not be loaded in the same vehicle with?

Poisons

Flammable gases

Explosives

Flammable liquids

30 / 40

Select the two reasons as to why special care is needed when driving a tank vehicle:

The danger of surge and the high center of gravity.

None of the answers listed.

The chance of rollover and of spontaneous combustion.

The danger of surge and the low center of gravity.

31 / 40

These tires should have a minimum tread depth of 4/32 inches.

Steering axle tires

Drive axle tires

Non-steering axle tires

Donut tires

32 / 40

Select the load of the trailer that will require the shorter distance to stop.

a 1/3 loaded trailer

a half loaded trailer

a fully loaded trailer

an empty trailer

33 / 40

Select the true statement about dual air brake systems:

they have one set of controls for two air brake systems

they have a single set of air tanks and hoses

they require less time to build up air pressure

they are required to have two warning alarms

34 / 40

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

A placarded cargo tank.

Two or more trailers.

A 200 inch wheelbase trailer.

None of these answers are correct.

35 / 40

To avoid rollover when going through a curve, the best thing to do is:

Ride the brakes through the curve.

Drive at a speed below the posted speed limit.

Pump the brakes through the curve.

Drive at a speed higher than the posted speed limit.

36 / 40

For Division 1.1 or 1.2 Explosives A, should the floor liner required be stainless steel?

Never use a floor liner for any explosive class

Yes

Any type of floor liner is sufficient

37 / 40

While completing the 2nd component of the air brake check you are required to turn the electrical power on, begin fanning off the air pressure by rapidly relasing and apply the foot brake and _____.

a low air warning device should sound before the air pressure drops below 60 psi

none of the answers listed

the tractor protection valve and parking brake valve should pop out before air pressure falls below 60 psi for combination vehicles

a low air warning device should sound before the air pressure drops below 40 psi

38 / 40

The average person requires how many hours of sleep per 24 hour period?

5 or 6

6 or 7

8 or 9

7 or 8

39 / 40

Select the true statement in regards to converter dollies:

they typically require a hand converter

they typically do not have spring brakes

they typically have a lot of stopping power because of their size

they typically have small braking power because of their size

40 / 40

Of the following hazardous material classes, which is the most dangerous?

Division 61

Division 64

Division 63

Division 62

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

CDL Category Practice Tests

How To Get an alabama Commercial Drivers License

Hit the Open Road

alabama CDL License Test Tips

Additional Information

CDL Testing by the Alabama Law Enforcement Agency

Additional Alabama CDL Helpful Links

alabama
CDL Practice Test