Knowledge Test Class B #1
Class B Driving Test | Louisiana 2026 #1 Page 7 of 7
Train for FREE online with our Louisiana class B 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 LA CDL class B 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 B requirements may vary from state to state.
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43 . If a vehicle is accompanied by a vehicle inspection report:
As the first step of a vehicle inspection, a driver should review any inspection report left by the previous driver.
44 . If another driver is tailgating you, you should:
If you are being tailgated, you should increase the distance between your vehicle and the vehicle ahead. This will reduce your need to make sudden moves, and will also allow the tailgater more room to pass you. Speeding up when being tailgated is not advised because it may result in the tailgater continuing to follow you closely at the higher speed, only increasing the danger.
45 . When it’s difficult to see, such as at dawn or dusk, a driver can increase their vehicle's visibility by:
When driving at dawn, at dusk, or in inclement weather, you should use your headlights on their low beam setting to increase your visibility.
46 . For a hazardous materials endorsement, an applicant will be required to:
To obtain a hazardous materials endorsement, you must submit your fingerprints and pass a background check.
47 . Brakes can get out of adjustment quickly, especially:
Brakes are particularly prone to getting out of adjustment if they are hot. Be sure to routinely check the adjustment of your brakes. For a vehicle to be safely controlled, all brakes must be properly functioning and adjusted.
48 . Air tank drains should:
Compressed air in an air brake system usually contains a certain amount of water and compressor oil. The water and oil can damage the brakes if left to accumulate in the system. Manually operated air tank drains must be opened daily to remove this build-up.
49 . Your CDL will be revoked if:
If your privilege to operate your personal vehicle is revoked, canceled, or suspended due to moving traffic violations, you will also lose your CDL. This does not apply if your license is revoked due to parking violations.
50 . Traction is important in:
You will not be able to brake or steer your vehicle without adequate traction. Ensure that your tires are in proper working condition before beginning a trip.
See the exact questions that will be on the 2026 Louisiana DMV exam.
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2026 Louisiana | Frequently Asked Questions
To acquire a CDL Hazmat endorsement in Louisiana, you must have a valid Louisiana CDL. Next, pass the Hazardous Materials Endorsement Knowledge Test. Then, submit fingerprints and undergo a TSA background check. Once cleared, you can apply for the endorsement at a Louisiana Office of Motor Vehicles location. Fees for testing and endorsement apply.
To obtain a CDL Hazmat license, you need a valid Commercial Driver's License (CDL). You must be at least 21 years old and a U.S. citizen or have a valid permanent resident card. You're required to pass the Hazardous Materials Endorsement Knowledge Test and undergo a Transportation Security Administration (TSA) background check. Good driving records are also essential.
When applying for a CDL Hazmat endorsement, you must provide a valid Commercial Driver's License (CDL), proof of U.S. citizenship or lawful permanent residency, and proof of identity. You'll also need to complete a Hazardous Materials Endorsement application form and pass the TSA background check. Be prepared to pay the necessary fees.
Yes, there is a dedicated written test for the CDL Hazmat endorsement. This test evaluates your knowledge about transporting hazardous materials. Topics include identifying different types of hazardous materials, loading and unloading procedures, safety protocols, and emergency response techniques. You must pass this test to obtain the Hazmat endorsement.
The written test for the CDL Hazmat endorsement covers a range of subjects including: identification of hazardous materials, understanding shipping papers, placarding rules, safe loading and unloading procedures, hazard classes, emergency response procedures, and security risks associated with transporting hazardous materials. It's designed to ensure drivers are knowledgeable and can handle potential hazards.
Yes, acquiring a CDL Hazmat endorsement does come with additional charges. These include the cost for the knowledge test, fingerprinting fee, and a federal security threat assessment. The exact fees may vary, so it's recommended to check with your local DMV or equivalent agency in Louisiana for the most accurate information.
Yes, obtaining a CDL Hazmat endorsement requires a background check. The Transportation Security Administration (TSA) conducts this check. It includes a review of your criminal, immigration, and terrorist records. The TSA also requires fingerprinting as part of this process. If you pass the background check, you are eligible to take the Hazmat knowledge test.
Yes, specialized training is required for the CDL Hazmat endorsement. This training includes a written knowledge test. Also, the Federal Motor Carrier Safety Administration mandates that Hazmat drivers must be trained and tested on safe driving, recognizing hazardous materials, emergency situations, and prevention of cargo spills. Training certificates are required as proof.
No, you cannot transport hazardous materials without a valid CDL Hazmat endorsement. This is a federal requirement set by the Federal Motor Carrier Safety Administration. Violating this rule can result in significant penalties, including fines, imprisonment, and disqualification from holding a commercial driver's license.
Yes, you can add the CDL Hazmat endorsement to your current CDL license. You don't need a new application. However, you need to pass the Hazardous Materials Endorsement Knowledge Test and a TSA background check. Once these steps are completed, the Hazmat endorsement will be added to your existing CDL.
