Air Brakes #2
Air Brakes Endorsement Test | Arizona 2025 #2
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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1 . On flat surfaces, wheel chocks:
In situations where a driver cannot use a parking brake, wheel chocks can be used to hold a parked vehicle in place on a level surface.
2 . 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.
3 . Which of the following is not part of a vehicle’s air brake system?
Components of an air brake system include an air compressor, an air compressor governor, air storage tanks, air tank drains, an alcohol evaporator, a safety valve, a brake pedal, foundation brakes, supply pressure gauges, an application pressure gauge, a low air pressure warning signal, a stop light switch, a front brake limiting valve (on some older vehicles), spring brakes, and parking brake controls.
4 . During an applied leakage test, what is the maximum leakage rate that is safe for a single vehicle with air brakes?
It is important to know the maximum air loss rate that is safe for your specific vehicle. A single vehicle with air brakes should have a leakage rate no higher than 3 psi in a minute during an applied leakage test.
5 . 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.
6 . 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.
See the exact questions that will be on the 2025 Arizona DMV exam.
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2025 Arizona | Frequently Asked Questions
To secure a CDL Bus endorsement in Arizona, you must first hold a valid Arizona CDL. Then, pass the passenger endorsement written test. Complete a specialized training course and pass a skills test in the type of bus you wish to drive. Lastly, submit all necessary documents and fees to the Arizona Motor Vehicle Division.
To obtain a CDL Bus license in Arizona, you need to have a valid Arizona driver's license and be at least 21 years old. You need to pass vision and medical exams, have a clean driving record, and complete a CDL training course. After that, pass the written knowledge exam and the road skills test for the type of bus you want to drive.
Yes, specific training is necessary for a CDL Bus endorsement in Arizona. You'll need to complete a CDL training course that covers bus-specific topics like inspecting buses, handling passengers, and emergency procedures. After the course, you'll need to pass a written knowledge test and a road skills test in the type of bus you'll be driving.
In Arizona, CDL Bus licenses fall under Class B or Class C. Class B CDL is for a single vehicle with a GVWR of 26,001 or more pounds, or any such vehicle towing a vehicle not in excess of 10,000 pounds. Class C CDL is for any single vehicle, or combination of vehicles, that does not meet the definition of Class A or Class B, but is designed to transport 16 or more passengers.
No, you cannot use your personal vehicle for the CDL Bus driving test. You must take the test in the same type of vehicle for which you are trying to get a license. This means if you're applying for a bus endorsement, you must take the test in a bus that fits the specific class of CDL you're seeking.
During the CDL Bus driving test in Arizona, you will be evaluated on skills like pre-trip inspection, basic vehicle control, and on-road driving. You may need to demonstrate maneuvers such as turns, intersections, railway crossings, stopping, backing up, and expressway operations. You'll also be tested on safety procedures for loading/unloading passengers and emergency situations.
Yes, additional medical and physical prerequisites are required for a CDL Bus endorsement. You must pass a Department of Transportation (DOT) physical examination every two years. This exam assesses your vision, hearing, blood pressure, and checks for conditions like diabetes or epilepsy that could affect your driving ability. You must also be physically capable of performing bus driver duties.
No, it is not permissible to transport passengers without a valid CDL Bus endorsement in Arizona. If you're caught driving a commercial vehicle designed to carry 16 or more passengers (including the driver) without the proper endorsement, you could face serious penalties, including fines, suspension of your license, and even jail time.
Yes, the CDL Bus endorsement can be added to your existing CDL license in Arizona. You don't need a new application for the entire license, but you will have to pass the Passenger Transport Test. You'll also need to provide proof of physical fitness and pass a vision test.
Yes, there are restrictions for drivers with a CDL Bus endorsement in Arizona. Drivers must not have any serious traffic violations within the last three years. They also must pass a physical examination every two years, have good hearing and 20/40 vision, and cannot be colorblind. Additionally, they must maintain a logbook of their driving activities.
