Air Brakes Endorsement Test | Washington 2024 #2

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 2024, 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.

Number of Question 25

Passing Score 20

Number of Tests 20

1 . Air pressure should build up in a single air system within:

15 minutes.

12 minutes.

Three minutes.

In single air systems, air pressure should build from approximately 50 to 90 psi within three minutes.

2 . Lights that indicate that anti-lock brakes are not working are:

Gray.

Blue.

Yellow.

Vehicles equipped with Anti-Lock Braking Systems (ABS) have yellow malfunction lights to indicate issues in the braking system.

3 . Why should you regularly drain the air tanks?

Because the air gets old and needs to be replaced

Because compressed air contains some water and the water collects in the tanks

To allow for a change in pressure

Compressed air usually contains a certain amount of moisture and compressor oil, which can build up in the air storage tanks and damage the brake system. The tanks should be drained to clean out these accumulations. On a tank with a manual drain valve, draining should be performed at the end of each day of driving.

4 . Brakes out of adjustment will:

Work properly.

Cause some of the brakes to overwork and malfunction.

Allow better acceleration.

Brakes out of adjustment will fade before those that are properly adjusted. Brake adjustment must be checked frequently to help prevent brake issues.

5 . A low air pressure warning signal should activate:

When tank pressure falls below 120 psi.

When tank pressure falls below 60 psi.

When tank pressure falls below 10 psi.

In an air brake system, a low air pressure warning signal must come on if air pressure in the tanks falls below 60 psi. This warning signal may come in the form of a light, a buzzer, or a wig wag.

6 . During an applied leakage test, the maximum leakage rate for a triple combination vehicle is ____ in a minute.

2 psi

4 psi

6 psi

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.

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2024 Washington | Frequently Asked Questions

A CDL Class A license in Washington is defined as a commercial driver's license that allows the holder to operate any combination of vehicles with a Gross Vehicle Weight Rating (GVWR) of 26,001 pounds or more, given that the GVWR of the vehicle(s) being towed is in excess of 10,000 pounds.

A Class A Commercial Driver's License (CDL) in Washington allows the holder to operate any combination of vehicles with a Gross Vehicle Weight Rating (GVWR) of 26,001 pounds or more, provided the GVWR of the vehicle(s) being towed exceeds 10,000 pounds. This includes but is not limited to tractor-trailers, truck and trailer combinations, and tank vehicles.

To obtain a Class A CDL license in Washington, you must be at least 18 years old (21 for interstate driving), possess a valid Washington state driver's license, pass a vision test, and pass knowledge and skills tests. You'll also need to provide proof of U.S. citizenship or lawful permanent residency, and meet medical requirements.

In Washington, you must be at least 18 years old to qualify for a Class A Commercial Driver's License (CDL) for intrastate driving (within Washington only). However, federal regulations require drivers to be at least 21 years old to drive a commercial vehicle interstate (across state lines) or to haul hazardous materials.

While not always required, specific endorsements may be necessary for a Class A CDL license depending on the type of vehicle you'll operate or cargo you'll carry. These can include endorsements for double/triple trailers, tanker vehicles, passenger vehicles, or hazardous materials. Each endorsement requires additional knowledge tests and sometimes a skills test.

The Class A CDL skills test in Washington encompasses three parts: the pre-trip inspection, basic vehicle controls, and on-road driving. The pre-trip inspection checks your ability to assess your vehicle's safety. Basic vehicle controls assess your ability to maneuver and control the vehicle. The on-road driving test evaluates your driving skills in various traffic situations.

Yes, Class A CDL license holders in Washington may face limitations based on their specific endorsements and restrictions. For instance, without the proper endorsements, they cannot operate vehicles with air brakes, transport passengers, or haul hazardous materials. Additionally, restrictions may be placed on licenses due to medical conditions or lack of skills.

Yes, it is possible to take the written Class A CDL test in languages other than English in Washington. The Department of Licensing offers the test in several languages. However, federal regulations require anyone applying for a commercial driver license (CDL) to understand and read English to ensure safety on the roads.

Yes, you can request accommodations for the Class A CDL written test if you have a disability. Washington's Department of Licensing is committed to providing equal access to its services. If you have special needs, contact your local driver licensing office to discuss your situation and determine what accommodations can be made.

If you don't pass the Class A CDL written test in Washington, you can retake it. However, you must wait at least one day before retaking the test. Keep in mind that there may be additional fees for each attempt. It's advisable to study thoroughly before retaking the test to increase your chances of passing.