Knowledge Test Class A #1
Class A Driving Test | Washington 2026 #1 Page 5 of 7
Train for FREE online with our Washington class A license 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 CDL class A permit in 2026, 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 CDL class A requirements may vary from state to state.
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29 . Pre-trip inspections are:
Federal and state laws require drivers to inspect their vehicles before every trip, regardless of length.
30 . What is the maximum legal weight to be placed on a single axle?
The allowable gross weight of a bus or truck depends on its tire size, the number of axles, and the spacing of axles (or axle groups). In Washington State, the weight of a commercial vehicle is limited to no more than 20,000 pounds on any single axle.
31 . What is the slow vehicle rule?
Washington State's slow vehicle rule states that if you are driving slowly on a two-lane road and there are five or more vehicles backed up behind you, you must pull off of the roadway at the first available safe turnout to let the other drivers pass.
32 . Backing with a trailer is dangerous because:
Backing a truck is always dangerous because the driver may not be able to see everything behind them. CMV operators should avoid backing whenever possible.
33 . No more than ____ may be driven by a commercial driver in an eight-day period.
In Washington State, commercial drivers may be on duty for no more than 70 hours in an eight-day period.
34 . A broken exhaust system:
A broken exhaust system can let poisonous fumes into a vehicle's cab or sleeper berth. Be sure to inspect your exhaust system for any loose, broken, or missing parts.
35 . Scan the road ____ ahead of your vehicle.
Good drivers scan the road at least 12 to 15 seconds ahead of their vehicles. Looking ahead will allow you to identify and react to hazards before meeting them. Be sure to specifically look for vehicles that are coming onto the highway, entering into your lane, or turning.
2026 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.