Air Brakes #1
Air Brakes Endorsement Test | Washington 2026 #1 Page 3 of 4
Train for FREE online with our Washington 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 WA Class A/Class B driver license 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 the requirements for CDL may vary from state to state.
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13 . When parked on a flat surface, you should:
When parking on a level surface, you should use wheel chocks. If the vehicle is not equipped with spring brakes, this is essential to prevent the trailer from moving.
14 . Brakes can get out of adjustment quickly, especially:
Brakes are particularly prone to getting out of adjustment if they are hot. Be sure to routinely check the adjustment of your brakes. For a vehicle to be safely controlled, all brakes must be properly functioning and adjusted.
15 . During an applied leakage test, the maximum leakage rate for a double combination vehicle is ____ in a minute.
It is important to know the maximum air loss rate that is safe for your specific vehicle. A double combination vehicle should have a leakage rate no higher than 4 psi in a minute during an applied leakage test.
16 . During an applied leakage test, the maximum leakage rate for a triple combination vehicle is ____ in a minute.
It is important to know the maximum air loss rate that is safe for your specific vehicle. A triple combination should have a leakage rate no higher than 6 psi in a minute during an applied leakage test.
17 . The leakage rate for a triple combination vehicle with air brakes should be no more than ____ in one minute during a static leakage test.
When performing a static leakage test on a triple combination vehicle with air brakes, the leakage rate should be no more than 5 psi in one minute. If the air leaks from the air brake system at a quicker rate, the vehicle should not be driven because something likely needs to be repaired.
18 . ____ make up the emergency brake system.
In an air brake system, there are three different braking systems: a service brake system, a parking brake system, and an emergency brake system. The emergency brake system uses parts of both the parking and service brake systems.
See the exact questions that will be on the 2026 Washington DMV exam.
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2026 Washington | Frequently Asked Questions
To acquire a CDL Passenger endorsement in Washington, you must first have a valid Washington CDL. Complete a Passenger Endorsement Application and pass the Passenger Endorsement Knowledge Test at a Washington Department of Licensing office. After passing, you'll need to complete a skills test in the type of vehicle you'll be driving. Fees apply for each step.
To obtain a CDL Passenger license, you must have a valid Commercial Driver's License (CDL). You must also pass the Passenger Endorsement Knowledge Test and the Skills Test which includes pre-trip vehicle inspection, basic vehicle control, and on-road driving. Furthermore, you need to clear a federal background check. Training courses are also recommended before testing.
Yes, you will need specific training and experience to secure a CDL Passenger endorsement in Washington. You must have a valid Washington CDL and pass a knowledge test specifically for the Passenger endorsement. Additionally, you may need to complete a skills test and provide proof of training or experience in operating passenger vehicles.
Yes, for a CDL Passenger endorsement, you need to pass the Passenger Endorsement Knowledge Test. This is a written test that focuses on the special skills and knowledge necessary for safely transporting passengers. It covers topics like vehicle inspection, loading and trip start, on the road, after-trip vehicle inspection, prohibited practices, and use of brake-door interlocks.
During the CDL Passenger endorsement assessment, you'll need to demonstrate pre-trip vehicle inspection skills, basic vehicle control, and on-road driving. You'll need to show your ability to load and unload passengers safely, respond appropriately to emergency situations, operate special features for passengers, and conduct post-trip vehicle inspections.
No, you cannot legally transport passengers commercially without a valid CDL Passenger endorsement in Washington. This endorsement is required for drivers who wish to drive a vehicle designed to carry 16 or more passengers, including the driver. Driving without the proper endorsement can result in legal penalties.
You can add the CDL Passenger endorsement to your existing license in Washington. You will need to complete a new application and pay the required fees. Additionally, you will need to pass the knowledge test and, if applicable, the skills test for the Passenger endorsement. Once you meet all the requirements, the endorsement will be added to your CDL.
Yes, drivers with a CDL Passenger endorsement must adhere to federal and state regulations. These include compliance with hours-of-service laws, maintaining a logbook, regular vehicle inspections, and alcohol and drug restrictions. Moreover, drivers cannot transport more passengers than the vehicle's designated capacity or leave passengers unattended in a vehicle that isn't secure.
Yes, to acquire a CDL Passenger endorsement in Washington, you must be at least 21 years old. This is due to federal regulations which state that all commercial drivers operating a vehicle across state lines must be at least 21. However, those aged 18-20 may obtain a CDL for intrastate driving (within Washington only).
With a CDL Passenger endorsement in Washington, you will be eligible to operate various types of vehicles. This includes vehicles designed to transport 16 or more passengers, including the driver. Examples of eligible vehicles include buses, vans, and shuttles used for public transportation, schools, and other passenger transportation services. It is important to note that specific requirements and restrictions may apply based on the type and size of the vehicle.
