Air Brakes #1
Air Brakes Endorsement Test | Washington 2025 #1
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 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 . What helps prevent wheel lockup when braking?
The purpose of an Anti-Lock Braking System (ABS) is to prevent wheel lockup while brakes are being applied.
2 . Lights that indicate that anti-lock brakes are not working are:
Vehicles equipped with Anti-Lock Braking Systems (ABS) have yellow malfunction lights to indicate issues in the braking system.
3 . In a vehicle with dual air brakes, a leak in one system ____ the second system.
A dual air brake system is made up of two separate air brake systems. If there is an air leak in one system, it may not affect the other.
4 . In a dual air brake system:
There are two air brake systems in a dual air brake system. The systems share a set of brake controls, but each system has its own tanks, hoses, and lines.
5 . What is brake lag?
Because air takes time to flow through the air lines to the brakes, air brakes cannot begin working instantly. There is often a brake lag of at least one-half of a second between the moment the brake pedal is pressed and the moment the brakes begin to work.
6 . If the safety relief valve in an air brake system is releasing air:
The safety relief valve in an air brake system releases air if necessary to prevent pressure in the system from becoming too high. If the valve starts releasing air, there is something wrong. Have a mechanic fix the problem.
2025 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.