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

The method for testing hydraulic brakes for leaks is to _____.

2 / 40

If a rider wants to bring a car battery or a can of gasoline or kerosene aboard your bus, you should:

3 / 40

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

4 / 40

Which of the following statements about bus evacuation is true?

5 / 40

The shipping papers for hazardous materials can be found:

6 / 40

Which of the following three hazard classes should NOT be placed into a temperature-controlled trailer (one with a heater/air conditioner unit)?

7 / 40

If there is no traffic light or attendant, how far from the draw of a drawbridge must you stop?

8 / 40

At what pressure is the safety valve in the air compressor tank set to open?

9 / 40

You must have placards for explosives, poison gas or flammables exceeding:

10 / 40

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

11 / 40

Why is the proper adjustment and use of all mirrors so vital to the safe operation of the school bus?

12 / 40

Signs of distracted drivers include:

13 / 40

When you discharge an unruly passenger, you must choose a place that is:

14 / 40

Select the true statement in regards to managing the space to the sides:

15 / 40

Which of the following statements is FALSE:

16 / 40

Select the correct setup for shut-off valves:

17 / 40

When driving a combination vehicle, the trailer breaks away severing the air lines. The trailer brakes should come on and ____.

18 / 40

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

19 / 40

What is most likely to occur when the front wheels begin to skid?

20 / 40

Select the true statement in regards to the center of gravity for tanks:

21 / 40

Where should the safety catch for the fifth wheel locking lever be located for coupling to be complete?

22 / 40

This gauge has a governor cut-off.

23 / 40

The best way to test the low air pressure warning signal is to:

24 / 40

What is the main difference between a portable tank and a cargo tank?

25 / 40

What is the earliest way to notice a trailer skid?

26 / 40

Check to ensure that____when inspecting the coupling.

27 / 40

Select the true statement in regards to brake drums:

28 / 40

Select the correct description for a bulkhead tank.

29 / 40

How do you hook a combination to a second trailer without spring brakes and without using wheel chocks?

30 / 40

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

31 / 40

To decide which placards you need, if any, what three things do you need to know?

32 / 40

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

33 / 40

The trailer should be lowered so that _____.

34 / 40

Select the true statement about stop valves in a cargo tank:

35 / 40

What are the three types of emergency equipment that you must have with your vehicle?

36 / 40

Vehicle handling can become unsafe if the weight is not properly balanced. Hard steering can be caused by:

37 / 40

A placard is required for a combustible liquid at?

38 / 40

How should the pintle hook be when backing a dolly under the second trailer?

39 / 40

This object should be checked to make sure that the cap(s) are on tight, that it is secure, and there are no leaks.

40 / 40

In Column 1 the symbol "I" means:

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.


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:


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.