Knowledge Test Class A #1
Class A Driving Test | Louisiana 2025 #1 Page 5 of 7
Train for FREE online with our Louisiana 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 LA CDL class A permit in 2025, 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 . Which of the following is not a cause of hydraulic brake failure?
Most cases of hydraulic brake failure come from one of two causes. The brakes may fail due to a loss of hydraulic pressure or due to overuse on long hills, causing the brakes to fade.
30 . The Individual Vehicle Distance Record (IVDR) does not need to include which of the following?
An Individual Vehicle Distance Record (IVDR) must include information about the distance traveled by a vehicle and the amount of fuel purchased. The required distance information includes the origin and destination points of the trip and the Vehicle Identification Number.
31 . To obtain a hazardous materials endorsement, a person must be:
To obtain a hazardous materials endorsement, you must be a U.S. citizen or lawful permanent resident. You will lose your hazardous materials endorsement if you renounce your U.S. citizenship.
32 . How many daily hours of sleep does an adult need to maintain alertness?
Four to five
Being properly rested is essential to the safe operation of a CMV. To maintain alertness, most people need eight to nine hours of sleep per night.
33 . Eating while driving:
Eating while driving can be a dangerous distraction to the driver both because it diverts their attention away from the task at hand and requires them to remove a hand from the steering wheel.
34 . What is brake lag?
Because air takes time to flow through the air lines to the brakes, air brakes cannot begin working instantly. There is often a brake lag of at least one-half of a second between the moment the brake pedal is pressed and the moment the brakes begin to work.
35 . If your vehicle is hydroplaning, you should:
If your vehicle begins to hydroplane, do not apply the brakes. Instead, slow down by releasing the accelerator and pushing in the clutch.
See the exact questions that will be on the 2025 Louisiana DMV exam.
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Lillian MCcranie explains how our CDL study guide was helpful in passing the exam and recommends it to everyone.
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2025 Louisiana | Frequently Asked Questions
To acquire a CDL Tank endorsement in Louisiana, you need to pass the tank vehicle test. This involves studying the CDL manual, especially the section on tank vehicles. Then, you must schedule and take the test at your local DMV. Passing the test will add the Tank endorsement to your CDL. Always check with your local DMV for specific requirements.
To obtain a CDL Tank license, you must first have a Commercial Driver's License (CDL). You then need to pass the Tank Vehicle endorsement test. This would require studying the tank vehicle section in the CDL manual. After studying, schedule your test at the local DMV. Passing this test will add the Tank endorsement to your CDL.
While specific training or experience is not legally mandatory for a CDL Tank endorsement, it can be beneficial. Knowledge of handling and operating tank vehicles safely is crucial, and this can be gained through training or experience. However, the key requirement is passing the tank vehicle test after studying the relevant sections in the CDL manual.
Yes, to obtain a CDL Tank endorsement, you must pass an additional written test. The test covers specific knowledge related to the safe transportation of liquid and gaseous materials in tank vehicles. You can prepare for this test by studying the tank vehicle section in your state's Commercial Driver's License manual.
The written test for the CDL Tank endorsement includes subjects related to operating a tank vehicle. Topics include understanding high center of gravity, handling surge, inspecting tank vehicles, and safety considerations. The test aims to ensure drivers can safely handle the unique characteristics of driving a tank vehicle.
The CDL Tank endorsement assessment doesn't involve a specific skills or maneuvers test. It is a written exam that evaluates your knowledge of safely operating tank vehicles. Topics include understanding the vehicle's structure, handling high center of gravity, inspecting tanks, and dealing with surge effects. Practical skills are assessed under the general CDL driving test.
There aren't specific limitations for drivers with a CDL Tank endorsement. However, drivers must comply with federal and state regulations, including hours of service rules, weight limits, and hazardous materials restrictions. Additionally, some employers may have their own rules regarding experience, age, or physical condition. Also, driving under the influence can result in endorsement revocation.
No, a valid CDL Tank endorsement is required to transport liquid or gas materials in the United States. This endorsement ensures that drivers have the necessary knowledge and skills to safely operate tank vehicles and handle potential hazards associated with these types of materials. Driving without the proper endorsement can result in fines or legal action.
The CDL Tank endorsement can be added to your current commercial driver's license. You don't need to apply for a new license. However, you will need to pass the Tank endorsement written test. Once you pass the test, the Tank endorsement will be added to your existing CDL.
Yes, to handle hazardous materials with a CDL Tank endorsement, you must also have a Hazardous Materials (HazMat) endorsement. This requires passing a written test and a TSA background check. Additionally, you must follow the Federal Motor Carrier Safety Administration's safety regulations when transporting hazardous materials.
