Combination #2
Combination Vehicles Practice Test | Washington 2024 #2
Train for FREE online with our Washington CDL combination vehicle 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 combination 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 DMV requirements for issuing a combination license may vary from state to state.
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1 . When coupling, after you've connected the air lines to the trailer, you should:
Correctly following the steps to couple and uncouple trailers is vital to safely operating a combination vehicle. After connecting the air lines to the trailer while coupling, you should supply air to the trailer.
2 . If the emergency air line loses pressure:
The tractor protection valve keeps air in the trailer's braking system should the trailer break away or develop a leak. A loss of air pressure in the emergency line will cause the tractor protection valve to open and the emergency trailer brakes to activate.
3 . The best way to recognize that your trailer has started to skid is by:
The easiest way to become aware that your trailer has begun to jackknife is to observe it in your mirrors. Checking your trailer in your mirrors will also allow you to spot any skidding at the earliest possible moment.
4 . A driver should test the tractor protection valve by:
You should test the tractor protection valve by allowing the air supply to properly charge, turning off the engine, then releasing air from the system by pressing the brake pedal several times. The tractor protection valve should move into its emergency position when psi drops to an unsafe level.
5 . The trailer hand valve should be used:
The trailer hand valve (also referred to as the "trolley valve" or "Johnson bar") works the trailer brakes and should be used only when testing them. Using the trailer hand valve while driving could result in a skid.
6 . If a trailer begins to jackknife, the driver:
If a trailer begins to jackknife, you should release the brakes and allow the trailer wheels to regain traction with the road. Do not apply the trailer hand brake to attempt to straighten out the rig because the application of brakes is what caused the wheels to lock in the first place.
7 . How much space should be between the upper and lower fifth wheel?
Before a trip, be sure to inspect all couplings. There should be no space between the upper and lower fifth wheel.
See the exact questions that will be on the 2024 Washington DMV exam.
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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.
