Air Brakes #1
Air Brakes Endorsement Test | Washington 2024 #1 Page 4 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 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.
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19 . If air pressure drops to a level between ____, a visual low pressure warning signal should have already activated.
A visual low pressure warning signal should activate before air pressure drops to a level between 55 and 75 psi. This signal could be a light, a buzzer, or a wig wag.
20 . A low air pressure warning signal should activate:
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.
21 . A safety valve is set to open at ____ pounds per square inch (psi).
The safety valve protects air tanks and the rest of an air brake system from accumulating too much air pressure. The safety valve is usually set to open at 150 psi.
22 . 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.
23 . Air pressure should build up in a single air system within:
In single air systems, air pressure should build from approximately 50 to 90 psi within three minutes.
24 . 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.
25 . Once the air tanks are at an air pressure level of 125 psi, the air compressor governor will:
An air compressor governor will stop the compressor from pumping air once the air tanks are at an air pressure level around 125 psi. This air pressure level is referred to as the "cut-out" level.
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2024 Washington | Frequently Asked Questions
To acquire a CDL Hazmat endorsement in Washington, you must have a valid CDL. Next, pass the Hazardous Materials Endorsement Knowledge Test at a Washington State driver licensing office. Then, undergo a federal background check and fingerprinting at an approved location. Finally, after receiving clearance, visit a driver licensing office to add the endorsement to your CDL.
To obtain a CDL Hazmat license, you must first have a valid Commercial Driver's License (CDL). You also need to pass the Hazardous Materials Endorsement Knowledge Test. A federal background check and fingerprinting are also required. Additionally, you must be at least 21 years old and a U.S. citizen or have legal status in the U.S.
When applying for a CDL Hazmat endorsement, you'll need your current Commercial Driver's License (CDL), proof of U.S. citizenship or lawful permanent residency (like a birth certificate or green card), and a completed Medical Examination Report Form. Also, you'll need proof of your Social Security number and a completed Hazardous Materials Endorsement application.
Yes, there is a dedicated written test for the CDL Hazmat endorsement. This is known as the Hazardous Materials Endorsement Knowledge Test. It covers topics like loading and unloading hazardous materials, bulk packaging marking, driving and parking rules, and emergency response procedures. You must pass this test to get the Hazmat endorsement.
The Hazardous Materials Endorsement Knowledge Test for the CDL Hazmat endorsement covers a range of subjects including identification of hazardous materials, proper loading and unloading procedures, safety procedures in transport, emergency response procedures, and understanding of the Hazardous Materials Regulations. It also tests knowledge of placarding and marking requirements.
Yes, there are extra charges associated with obtaining a CDL Hazmat endorsement. These include fees for the written test, fingerprinting, and a background check. The exact costs can vary by state and the specific services used for fingerprinting and background checks. It's best to check with your local DMV for the most accurate information.
Yes, obtaining a CDL Hazmat endorsement does require a background check and security clearance. The Transportation Security Administration (TSA) conducts these checks to ensure that the applicant does not pose a security threat. The process includes fingerprinting, a review of criminal history, and immigration status check for non-U.S. citizens.
Yes, specialized training is mandatory for the CDL Hazmat endorsement. Applicants must pass the Hazardous Materials Endorsement Knowledge Test. Additionally, they must undergo a TSA background check. While not a formal "certification," these steps are necessary to ensure the driver understands how to safely handle hazardous materials.
No, you cannot legally transport hazardous materials without a valid Commercial Driver's License (CDL) with a Hazardous Materials (Hazmat) endorsement. This endorsement ensures that drivers have the necessary training and knowledge to handle hazardous materials safely and in compliance with the law. Violating this can result in hefty fines and penalties.
You can add the CDL Hazmat endorsement to your current CDL license. It doesn't require a new application for a CDL license. However, you will need to fill out a separate application for the endorsement, pass the Hazmat knowledge test, and complete a TSA background check before the endorsement is added to your existing CDL.
