arizona
CDL Practice Test

This site contains free CDL practice tests for Arizona. You can take these practice tests as many times as you would like as you prepare for the Arizona CDL test. Questions are derived from various CDL topics that are represented in the Arizona CDL manual. You will be presented with 40 questions and you must answer 34 test 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 begin your Arizona CDL practice test.

1 / 40

Select the best description of a baffle tank:

None of the answers listed.

It is one large tank.

They are tanks divided down into multiple smaller tanks.

They are divided and have holes for liquid to flow through controlling surge.

2 / 40

Select the statement that describes smooth bore tanks:

They are divided with holes from liquid to flow through controlling surge.

None of the answers listed.

They are 1 large tank.

They are divided down into smaller tanks.

3 / 40

While completing the 3rd component of the air brake check of a combination vehicle, at what psi should the tracor protection valve and parking brake valve should pop out?

They should never pop out

20 psi

40 psi

70 psi

4 / 40

While completing the 1st component of the air brake check you are required to fully push down on the foot brake and _____.

see if the air pressure drops more than 4 lbs in a minute while holding it down for a full minute in a combination vehicle

both of the answers listed

see if the air pressure drops more than 3 lbs in a minute while holding it down for that full minute in a single vehicle

none of the answers listed

5 / 40

Which trailer is most likely to tip over due to the crack the whip effect?

the last trailer of a triple

the last trailer of a double

the first trailer of a triples

the heaviest trailer

6 / 40

In what location must you keep your shipping papers which describe any hazardous materials?

In a locked glove compartment anytime you are outside of the vehicle.

On the driver's seat anytime you are outside of the vehicle.

In a fire-safe pouch under the passenger seat while you are driving.

In a fire-safe pouch under the driver's seat that you can reach while you are driving.

7 / 40

Which of the following will confirm that you are driving with anti-lock brakes?

Red indicator lamp on the brake cylinder.

The certification on the driver side door.

Yellow abs malfunction lamp on the instrument panel will light when you start the engine.

The bus operators manual.

8 / 40

The most important hand signal you should agree on with a helper is:

“stop”

“turn up the music”

“faster”

“go”

9 / 40

Front wheel brakes are good under what kind of conditions?

icy or wet conditions

ideal weather conditions

any weather conditons

they are not ideal

10 / 40

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

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

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.

11 / 40

The transport index of a radioactive material:

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.

Tells the degree of control needed during transportation.

12 / 40

Bus drivers must have a CDL if they drive a vehicle:

That is designed to carry more than nine passengers.

That has air brakes.

That has a gross weight rating of more than 26,000 pounds.

Designed to seat more than 16 or more persons, including the driver.

13 / 40

A placard is required for a combustible liquid at?

110 gallons

1,001 pounds or more

Any amount

100 gallons

14 / 40

When backing your vehicle, which of the following is NOT recommended

back as slow as possible

back and turn towards the driver's side

back towards the right side

use the lowest reverse gear

15 / 40

The parking brakes should be used____in air brake vehicles.

as rarely as possible

every time the vehicle is parked

only when parked on an incline

only during post trip inspection

16 / 40

How do you determine if slack adjusters need to be adjusted?

pull out the automatic slack adjustment control knob

release the parking brakes and activate the service brakes

activiate the parking brake and service brake

release the parking brakes and service brakes

17 / 40

Urban mass transit coaches may have a brake and accelerator interlock system. Which of the following statements is true?

All of these answers are correct.

Do not use this safety feature in place of the parking brake.

The interlock releases when you close the rear door.

The interlock applies the brakes and holds the throttle in idle position when the rear door is open.

18 / 40

What keeps air in the tanks should the air compressor develop a leak?

the air compressor

the tractor relay valve

the one-way check vavle

the engine protection valve

19 / 40

The object that doesn't get checked at the side of the trailer is the:

The locking pins/tandem release arm

The frame

Electrical/air connections

The landing gear

20 / 40

Select the true statement in regards to as why you should make sure the fifth wheel plate is greased as recommended:

To decease heat and noise.

To make sure the electrical connections are good.

To prevent any steering problems.

To make sure that uncoupling easier.

21 / 40

The walls that separate compartments inside the tanks and having openings at the top and bottom are called:

Baffles

Bulktears

Free walls

Layers

22 / 40

With the engine cut off and the brakes released the air loss in a straight truck or bus should not be more than:

4 psi in a minute

3 psi in a minute

2 psi in a minute

5 psi in a minute

23 / 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 32-foot long trailer

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

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

24 / 40

What should you do if the low air pressure warning comes on for only one system in a truck or bus that has a dual air brake system?

continue on with your trip

stop and safely park your vehicle only continue once the issue has been resolved

decrease your speed and test the other system

decrease your speed and head to the closest mechanic

25 / 40

When driving in very hot temperatures, you should:

insure that you have enough antifreeze in the system

all of these answers are correct

check your tires every 2 hours or every 100 miles

let your tires cool down (remain stopped) if they are too hot to touch

26 / 40

When driving with multiple trailers, which one should be right behind the tractor?

the trailer longest in length

the trailer with the smallest road

the trailer with the heaviest load

the trailers shortest in length

27 / 40

How far before a railroad crossing should you stop your bus?

50 to 75 feet

100 feet exactly

10 to 35 feet

15 to 50 feet

28 / 40

The method used to make sure the spring brakes will come on automatically is to:

Apply pressure on and off the brake pedal to increase the air tank pressure. The parking brake knob should pop out when the air pressure meets to the manufacturer’s specification.

Apply pressure on and off the brake pedal to decrease the air tank pressure while driving at a high a speed. The parking brake knob should pop out when the air pressure meets to the manufacturer’s specification.

Apply pressure on and off the brake pedal to decrease the air tank pressure. The parking brake knob should pop out when the air pressure drops to 120 psi.

Apply pressure on and off the brake pedal to decrease the air tank pressure. The parking brake knob should pop out when the air pressure meets to the manufacturer’s specification.

29 / 40

Select when you should use the parking brake:

when you are leaving your vehicle for more than an hour

with rare exception, every time you leave your vehicle

each time you leave your vehicle for any amount of time

when in residential areas

30 / 40

To inspect the______you should pump the pedal 3 times and hold it down for 5 seconds while making sure the pedal doesn't move during those 5 seconds.

parking brakes

air brakes

engine brakes

hydraulic brakes

31 / 40

In Column 1 the symbol "I" means:

International restrictions.

Iodine.

Invalid substance.

International transportation.

32 / 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

33 / 40

What should you do if you start a trailer skid?

use your trailer hand brake

slowly apply a firm pressure to the brakes

quickly step on the brakes

release the brakes to get traction back

34 / 40

When you have a major leak in the service line and you apply pressure to the brakes, the service air pressure will escape and:

the hand valve will stop functioning

the tractor spring brakes will kick on

the trailer tank pressure will be gone

the trailer emergency brakes will kick on

35 / 40

Why are you required to take an exam about air brakes?

you would have to get a CDL with a restriction otherwise

all trucks have air brakes

you cannot receive a CDL at all otherwise

it is a federal requirement

36 / 40

Select what you should not do when coupling the glad hands.

make sure to match the colors or check the tags before connecting

clean the couplers before connecting them

cross the air supply lines to test for leaks

press the seals together at a 90 degree angle

37 / 40

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

To check for flat tires.

To assist the school principal with their report.

To give the mechanic something to do.

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

38 / 40

The school bus driver may be the only contact person from school system some parents meet. The percentage of such parents is as high as:

0.85

0.72

0.5

0.65

39 / 40

Which of the following is a necessary qualification for non-bulk packaging?

All of these answers are necessary qualifications.

A maximum capacity of 450 l or less if it is used as a receptacle for liquids.

Maximum water capacity of 454 kg or less if used as a receptacle for gases.

Maximum net mass of 400 kg, or less than 450 l if used as a receptacle for a solid.

40 / 40

Select the true statement about empty trucks:

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

They have better traction on wet roads than full tanks.

All answers listed.

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

Your score is

The average score is 0%

5/5 - (1 vote)

CDL Category Practice Tests

CDL Practice Test

How To Get An arizona Commercial Drivers License

All Arizona CDL applicants must possess a valid driver’s license and meet the many eligibility requirements listed here. Arizona residents who are 21 years or older may apply for a commercial driver’s license and any specific endorsements offered. Those residents who are between the ages of 18 and 21 can apply for a restricted commercial driver’s license that only offers intrastate driving and limited endorsement availability. All applicants must possess a medical card from a qualified DOT Medical Examiner.

Any applicants that have the following attributes will be disqualified from receiving a CDL:

Being convicted in the past two years of driving a commercial vehicle under the influence.
Having more than one driver’s license.
Having commercial driving privileges revoked in Arizona or any other U.S. State.
Having a suspended or revoked driver’s license.

Those applying for their Arizona-issued commercial driver’s license will be required to take two assessments. These include the knowledge test and the skills test. Depending on the Class and Endorsements that an applicant is seeking, they may be required to partake in more than one knowledge test.

Endorsements

S – School Bus
P – Passengers
T – Doubles and Triples
N – Tanks
H – Hazardous Materials
X – Tanks with Hazmat

Hit the Open Road

arizona CDL License Test Tips

All knowledge tests require a passing score of 80 percent or higher for the applicant to receive their Arizona Commercial Driving Permit. The general knowledge test is comprised of 50 questions regarding commercial vehicles and driving them. Class A drivers will be required to not only complete the general knowledge test, but also a 20 question assessment about combination vehicles. Those seeking endorsements will be required to take a test for each endorsement sought. Hazmat Endorsement requires a 30 question assessment. School Bus Endorsement and the Air Brake Restriction Removal requires a 25 question assessment.

In order to assess an applicant’s ability to operate a commercial vehicle, Arizona testing facilities will require skills tests. These skills tests are comprised of a pre-trip vehicle inspection, on-road driving test, and evaluation of basic control skills. Any applicant that is seeking an endorsement must take the skills test in the type of vehicle the endorsement is intended for.

Additional Information

Information on the Arizona Department of Motor Vehicles

The Arizona DMV regulates the certifying and testing of commercial drivers in the state. To get more information contact them via:

Website: https://www.azdot.gov/motor-vehicles/driver-services/commercial-driver-license

Phone: 602.255.0072

Additional Arizona CDL Helpful Links

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

arizona CDL Practice Test