Air Brakes #1
Air Brakes Endorsement Test | Minnesota 2025 #1 Page 4 of 4
Train for FREE online with our Minnesota CDL air brake 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 MN Class A/Class B driver license 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 the requirements for CDL may vary from state to state.
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19 . The ____ between an air compressor and reservoir tank prevents air from escaping if the air compressor has a leak.
A one-way check valve is required to be between an air compressor and the first main reservoir. This valve prevents air from escaping the system if the air compressor develops a leak.
20 . In an empty combination vehicle, the stiff suspension springs and strong brakes will have:
An empty combination vehicle will come to a complete stop more slowly than a fully-loaded vehicle. With less weight in a trailer, the stiff suspension springs and strong brakes will have lower traction than they would if the vehicle carried more weight.
21 . Service brakes should:
Before driving, you should always verify that your service brakes are in good working order. Testing the brakes before a trip allows you to locate any problems before you need to brake while on the road.
22 . To ensure normal stopping power, drivers of vehicles equipped with a front brake limiting valve should:
Keep the control at the halfway mark.
Some pre-1975 vehicles have a front brake limiting valve, which has "normal" and "slippery" settings. The idea behind these valves was to limit the air pressure available to the front brakes when driving on slippery surfaces, and thereby reduce the danger of a front-wheel skid. Studies have found that this is not actually a concern, so if your vehicle has a front brake limiting valve, leave it in the "normal" position.
23 . ABS usually shortens a vehicle's stopping distance.
While an Anti-Lock Braking System (ABS) helps give a driver more control while braking, it does not necessarily shorten the vehicle's stopping distance.
24 . Operating combination vehicles usually requires ____ operating single vehicles.
Combination vehicles are usually heavier and longer than single combination vehicles. Operating a combination vehicle requires a higher level of driving skill than operating a single commercial vehicle.
25 . A driver can rely on front wheel braking to work:
Front wheel braking is effective under all road conditions. It is unlikely that you will experience a front wheel skid, even on ice.
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2025 Minnesota | Frequently Asked Questions
To acquire a CDL Tank endorsement in Minnesota, you must first possess a valid Commercial Driver's License (CDL). Then, study the Minnesota CDL handbook's tank vehicle section. Afterward, schedule and pass a Tank Vehicle written test at your local Department of Motor Vehicles (DMV). Successful completion of the test will add the endorsement to your CDL.
Obtaining a CDL Tank license requires a valid Commercial Driver's License (CDL). You must study the tank vehicle section of the CDL handbook thoroughly. After understanding the material, schedule and pass a Tank Vehicle written test at your local DMV. Once you pass the test, the tank endorsement will be added to your CDL.
While specific training or experience isn't mandatory for a CDL Tank endorsement, it's highly beneficial. Understanding the material in the tank vehicle section of the CDL handbook is crucial. Passing the Tank Vehicle written test at your local DMV is required. Practical experience or training can help you better understand the rules and operations, increasing your chances of passing the test.
Yes, to obtain a CDL Tank endorsement in Minnesota, applicants must pass a specific written knowledge test. This test focuses on the safe transportation of liquid and gaseous materials. It's administered by the Minnesota Department of Public Safety and is in addition to the general CDL requirements.
The written test for a CDL Tank endorsement covers a variety of topics, including the inspection of tank vehicles, correct loading and unloading procedures, driving stability and handling, and the correct response to emergencies or hazardous conditions. It's key to study these areas thoroughly to pass the test and obtain your endorsement.
The CDL Tank endorsement assessment doesn't typically involve a skills or driving test. It focuses on the written exam which tests knowledge on specific topics like inspecting tank vehicles, understanding weight distribution, handling high center of gravity, and dealing with surge. However, general CDL testing will assess your ability to safely operate and maneuver the vehicle.
Yes, there are certain limitations for drivers with a CDL Tank endorsement. For example, they are only allowed to operate vehicles that carry liquid or gaseous materials in a tank or tanks having an individual rated capacity of more than 119 gallons and an aggregate rated capacity of 1,000 gallons or more. They must also adhere to strict safety and operational regulations.
No, liquid or gas materials cannot be transported without a valid CDL Tank endorsement. If a driver is caught transporting these materials without the proper endorsement, they could face serious penalties such as fines, suspension of their CDL, or even jail time. This endorsement is crucial for safety and regulatory compliance.
To add the CDL Tank endorsement to your current license in Minnesota, you will need to complete a fresh application. You must pass the written knowledge test specific to the Tank endorsement and provide the necessary documentation. Additionally, you may need to pass a skills test depending on the type of tank vehicle you will be operating.
Yes, handling hazardous materials with a CDL Tank endorsement requires additional training and certification, known as a Hazmat endorsement. This ensures drivers are knowledgeable about the risks and safety procedures associated with transporting hazardous materials. Additionally, a federal background check is required to obtain a Hazmat endorsement.
