Air Brakes #1
Air Brakes Endorsement Test | Arizona 2025 #1 Page 4 of 4
Train for FREE online with our Arizona CDL air brake test. 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 Class A/Class B driver license in 2025, 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 the requirements for CDL may vary from state to state.
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19 . A low air pressure warning signal:
Any vehicle with air brakes must be equipped with a low air pressure warning signal.
20 . Brakes out of adjustment will:
Brakes out of adjustment will fade before those that are properly adjusted. Brake adjustment must be checked frequently to help prevent brake issues.
21 . When traveling down a steep downgrade:
On long and/or steep downgrades, you should primarily use engine braking to control the speed of your vehicle. Use your brakes only as a supplement to this effect.
22 . What do air brakes use to make the brakes work?
Many large CMVs are equipped with air brakes. An air braking system uses compressed air to operate.
23 . Air tank drains should:
Compressed air in an air brake system usually contains a certain amount of water and compressor oil. The water and oil can damage the brakes if left to accumulate in the system. Manually operated air tank drains must be opened daily to remove this build-up.
24 . What should happen before the air pressure in an air brake system tank falls below 55 psi?
The low air pressure warning signal must activate before the air supply pressure drops below 55 psi in the air tank. If the warning signal does not turn on when being tested during an inspection, the vehicle is not safe to drive.
25 . Foundation brakes are used:
Foundation brakes are used on each wheel of a CMV. The most common type of foundation brake is the s-cam drum brake.
2025 Arizona | Frequently Asked Questions
To acquire a CDL Passenger endorsement in Arizona, you must have a valid Arizona CDL. You'll need to pass the passenger transport test, which covers loading/unloading passengers, post-trip vehicle inspection, prohibited practices, and use of brake-door interlocks. You also need to pass a skills test in the type of vehicle you'll be driving. Finally, you must pay the required fee.
To obtain a CDL Passenger license in Arizona, you must be at least 21 years old, possess a valid Arizona CDL, and pass both a written knowledge test and a skills test in the type of vehicle you wish to drive. You also need to complete a physical examination and provide proof of your identity, residency, and social security number. Finally, you must pay the required fee.
Though Arizona doesn't mandate specific training for a CDL Passenger endorsement, it's beneficial to have training or experience. This can help you pass the Passenger Transport Test, which covers special regulations and driving skills. Also, for the skills test, you must demonstrate proficiency in a vehicle of the same class you plan to drive.
Yes, to secure a CDL Passenger endorsement in Arizona, you must pass a written knowledge test specifically for passenger transport. This test covers topics like loading and unloading passengers, post-trip vehicle inspections, prohibited practices, and the use of brake-door interlocks. If you're planning to drive a school bus, you will also need to pass a separate school bus endorsement test.
During the CDL Passenger endorsement assessment in Arizona, you'll be required to demonstrate skills like pre-trip vehicle inspection, proper loading and unloading procedures, safe operation of the vehicle, and emergency procedures. You'll also need to show proficiency in maneuvers such as stopping, backing up, and parallel parking your passenger vehicle.
No, you cannot legally transport passengers in Arizona without a valid CDL Passenger endorsement. This endorsement is required for drivers who wish to drive any commercial vehicle that is designed to carry 16 or more passengers, including the driver. Driving without the appropriate CDL endorsement can result in fines, penalties, and disqualification of your CDL.
Yes, you can add a CDL Passenger endorsement to your existing license. You don't need a new application. However, you must pass the Passenger Transport Test and a skills test in the type of vehicle you wish to operate. Once these are successfully completed, the endorsement will be added to your existing CDL.
Yes, there are specific restrictions for drivers with a CDL Passenger endorsement in Arizona. For instance, you cannot transport hazardous materials in a vehicle designed to carry 16 or more passengers. Also, if you fail the air brakes portion of the CDL test, you'll have an "L" restriction and won't be allowed to operate a vehicle with air brakes.
Yes, in Arizona and across the U.S., to obtain a Commercial Driver's License (CDL) Passenger endorsement, you must be at least 21 years old. This age requirement is set by the Federal Motor Carrier Safety Administration. However, drivers aged 18-20 may obtain a CDL for intrastate driving (within the state) but they cannot drive commercial vehicles across state lines or carry hazardous materials.
With a CDL Passenger endorsement in Arizona, you are eligible to operate a variety of passenger vehicles. These include buses, shuttles, and any other vehicle designed to carry 16 or more passengers, including the driver. However, it's important to note that certain vehicles, like school buses or vehicles carrying hazardous materials, may require additional endorsements.