Knowledge Test Class B #2
Class B Driving Test | Louisiana 2026 #2 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 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.
44 . When backing with a trailer, turning toward the driver’s side is encouraged because:
When driving in reverse, it is always recommended that a driver backs their vehicle toward its left side. This will allow the driver the best possible view of the rear of their vehicle.
45 . If a vehicle is equipped with power steering, the hoses should be checked:
When inspecting a vehicle that is equipped with power steering, check the hoses, pumps, and fluid level. In particular, you should look for leaks in the hoses.
46 . When accelerating on a surface with poor traction, such as a wet road, a driver should:
You should accelerate very gradually when driving under conditions that create poor traction.
47 . If your brakes fail when traveling downhill, decide what to do as quickly as possible because:
However you choose to deal with a brake failure on a downhill slope, it is important that you make your decision as quickly as possible. The longer you wait to act, the faster your vehicle will be moving, and the harder it will become to stop.
48 . 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.
49 . When starting your vehicle, the coolant temperature should:
Watch the gauges in your vehicle before starting a trip. After starting your vehicle's engine, the coolant temperature should begin a gradual rise to the normal operating range.
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.