Hazmat Test | Arizona 2026 #2

On our website, we provide FREE practice - CDL hazmat test online! The official exam test consists of several obligatory parts, with all of them checking your knowledge of different blocks of road rules. If you need to obtain a AZ CDL hazmat endorsement in 2026, practice as much as possible. Free sample tests published on our website will help you check and improve your knowledge and boost your grades. Please bear in mind that Arizona requirements for issuing a hazmat endorsement for CDL may vary from those established in other states.

Number of Question 30

Passing Score 24

Number of Tests 20

1 . Before loading or unloading flammable liquids, the engine should be:

Turned off.

Revved up.

Left on.

Unless you must run the engine to operate a pump, you should always turn off the engine before loading or unloading flammable liquids.

2 . A driver should ensure that:

The shipping paper matches the markings and labels on packages.

The shipping paper is written in code.

All packages are labeled as poison.

It is always a good idea to compare package markings and labels to accompanying shipping papers. Always make sure the shipper has displayed the correct basic description on the shipping paper and has provided the proper labels on the packages.

3 . If a shipping paper describes both hazardous and non-hazardous materials:

The hazardous materials must be listed first.

The hazardous materials must be written larger.

The hazardous materials must be listed in red ink.

If a shipping paper lists both hazardous and non-hazardous materials, the hazardous materials must be entered first.

4 . Unless excepted, a shipping paper must list:

An emergency response telephone number.

The address of the shipper.

The location of fire departments along the planned route.

Unless excepted, hazardous materials shipping papers must list an emergency response telephone number.

5 . In the event of a fire, what should you do before opening trailer doors?

Check to see if the doors are hot.

Throw water on the doors.

Find someone else to open the doors.

If you are experiencing a truck fire, you should not attempt to open trailer doors without first feeling the doors to see if they are hot. If the doors are hot, there may be a cargo fire. In this case, leave the doors closed because opening the doors could worsen the fire by supplying it with more oxygen.

6 . What does a shipping paper describe?

The materials being transported

How the materials will be transported

Who should accept the materials being transported

Among other information, shipping papers must include a description of the specific hazardous materials being transported.

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2026 Arizona | Frequently Asked Questions

In Arizona, to secure a CDL Doubles/Triples endorsement, you must first have a valid Commercial Driver's License (CDL). Then, you'll need to pass the Doubles/Triples endorsement knowledge test administered by the Arizona Department of Transportation. Studying the CDL manual and taking practice tests can help prepare for this exam.

To obtain a CDL Doubles/Triples license, you first need a valid Commercial Driver's License (CDL). You must then pass the Doubles/Triples endorsement knowledge test. Preparation can include studying the CDL manual, particularly sections on coupling and uncoupling and inspecting doubles and triples. Lastly, pay the required fees to the Arizona Department of Transportation.

While Arizona doesn't mandate specific training for a CDL Doubles/Triples endorsement, it's beneficial to have practical experience or training. Understanding how to handle these larger, more complex vehicles safely is crucial. You'll need to pass the Doubles/Triples Endorsement Test, so studying the CDL manual and possibly taking a preparation course could be helpful.

Yes, to obtain a CDL Doubles/Triples endorsement in Arizona, you must pass the Doubles/Triples endorsement knowledge test. This test assesses your understanding of specific rules and safety standards for operating these vehicles. Studying the CDL manual and taking practice tests can help you prepare for this exam.

The CDL Doubles/Triples endorsement test in Arizona is primarily a knowledge test, focusing on understanding safety rules and procedures rather than specific maneuvers. Key topics include coupling and uncoupling, inspecting doubles and triples, and managing the vehicles' size and weight. However, practical skills like maneuvering and controlling these large vehicles are crucial for safe operation on the road.

No, it is not permissible to operate double/triple trailers without a valid CDL Doubles/Triples endorsement in Arizona. Driving such vehicles without the proper endorsement is illegal and can result in serious penalties, including fines and suspension or revocation of your commercial driver's license.

The CDL Doubles/Triples endorsement can be added to your existing commercial driver's license. You do not need to initiate a new application for a separate license. However, you will need to pass the Doubles/Triples endorsement knowledge test and pay the appropriate fees to have this endorsement added to your CDL.

Yes, drivers with a CDL Doubles/Triples endorsement must adhere to specific limitations. For example, the maximum length for a trailer in a double/triple combination is 28.5 feet. Furthermore, drivers are restricted to hauling doubles/triples on designated highways and during specific hours of the day, as determined by state and federal regulations.

The maximum length for a trailer in a double/triple combination is 28.5 feet. In terms of weight, federal law allows a maximum gross vehicle weight of 80,000 pounds, but this can be influenced by the number and spacing of axles. However, states can set their own restrictions, so it's advisable to check with local authorities.

Yes, drivers with a CDL Doubles/Triples endorsement must follow specific safety regulations. These include maintaining a safe following distance, not exceeding speed limits, ensuring proper coupling and uncoupling of trailers, and conducting pre-trip inspections. Additionally, drivers must understand the high rollover risk associated with these trailers and the effects of "crack-the-whip" scenarios.