Washington Driver's Examination

Air Brakes #2

FREE Air Brakes Endorsement Test Online | Washington 2024

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 2021, 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

To secure a CDL Doubles/Triples endorsement in Washington, you must first possess a valid CDL. Then, you should study the Doubles and Triples section of the Washington CDL Handbook. After studying, schedule and pass the written knowledge test at a Washington Department of Licensing office. Lastly, pay the required endorsement fee to add it to your license.

To obtain a CDL Doubles/Triples license, you must first have a basic CDL. You will then need to study for and pass the Doubles/Triples endorsement test, which covers specific knowledge related to driving these types of vehicles. This includes understanding the handling and safety procedures. Finally, you'll pay any required fees for the additional endorsement on your license.

While formal experience isn't required for a CDL Doubles/Triples endorsement, you must possess a valid Commercial Driver's License (CDL). It's recommended to study the CDL manual and take practice tests. Understanding coupling/uncoupling, inspecting doubles/triples, and checking air brakes is essential. Passing the Doubles/Triples endorsement knowledge test is the final step.

Yes, to obtain a CDL Doubles/Triples endorsement, you must pass the Doubles/Triples endorsement knowledge test. This test covers topics like coupling and uncoupling, inspecting doubles and triples, and checking air brakes. There is no additional driving skills test required beyond the standard CDL exam.

The CDL Doubles/Triples endorsement test primarily focuses on knowledge rather than specific driving maneuvers. You'll need to understand coupling and uncoupling, inspecting doubles and triples, and managing the high risk of rollover. Additionally, you'll need to know about pulling double/triple trailers, as well as the implications of crashes. The test is written, not practical, so no driving skills are showcased.

No, it is not permissible. In Washington, like in all states, a valid CDL Doubles/Triples endorsement is required to legally operate double or triple trailers. Driving these vehicles without the necessary endorsement can lead to serious penalties including fines and suspension of your commercial driving license.

You can append the Doubles/Triples endorsement to your existing CDL. You don't need to initiate a new application for a CDL. However, you must pass the Doubles/Triples knowledge test. Once you pass, the endorsement is added to your CDL, allowing you to legally operate double and triple trailers.

Yes, there are limitations for drivers with a CDL Doubles/Triples endorsement. They can only operate double or triple trailers. Also, these drivers must comply with all federal and state regulations regarding commercial vehicle operation, including weight limits, logbook rules, and safety inspections. Any violation can lead to penalties or revocation of the endorsement.

In Washington State, double trailers can't exceed a combined length of 61 feet and triple trailers can't exceed 75 feet. As for weight, the maximum gross vehicle weight (including all axles) is 105,500 pounds. However, individual axle weights can't exceed limits set by federal bridge laws. Always check specific state and federal regulations.

Yes, there are specific safety guidelines and regulations for driving double/triple trailers with a CDL Doubles/Triples endorsement in Washington. These include maintaining proper spacing between trailers, using proper turning techniques, and adhering to weight restrictions. It is important to follow these guidelines to ensure the safe operation of double/triple trailers on the road.