Air Brakes #1
Air Brakes Endorsement Test | Arizona 2025 #1 Page 3 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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13 . An alcohol evaporator is especially important:
Some air brake systems contain an alcohol evaporator. This evaporator introduces alcohol into the system to help prevent ice from forming in cold weather.
14 . A wig wag is:
Vehicles with air brakes are required to be equipped with a low pressure warning device. A wig wag is a type of low air pressure warning device. This device drops a mechanical arm into the driver's view if the pressure in the tanks drops to a level between 55 and 75 psi.
15 . A slack adjuster should move no more than ____ from where it is attached to the push rod.
Before a trip, you should check each slack adjuster after parking, setting wheel chocks, and disengaging the parking brake. Pull the slack adjusters to make sure that they do not move more than about one inch from where the push rod is attached. If they move more than one inch, they may be out of adjustment and will need to be fixed.
16 . When parking, you should not use the parking brake if:
If your brakes are hot after coming down a steep grade, you should not use your parking brake when parking. Let your brakes cool before applying the parking brake or risk damaging the brakes.
17 . What color malfunction lamps do vehicles equipped with ABS have?
Anti-Lock Braking System (ABS) malfunction lamps are usually yellow. Even if the ABS isn't working properly, a driver will still have access to the vehicle's usual braking functions.
18 . What does an air compressor do in an air brake system?
In an air brake system, the air compressor pumps air into the air storage tanks. The air compressor is controlled by the air compressor governor.
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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.
