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.
2025 Minnesota | Frequently Asked Questions
To acquire a CDL Hazmat endorsement in Minnesota, you must have a valid Minnesota CDL. You'll need to pass the Hazardous Materials Knowledge Test and undergo a federal security threat assessment (background check). The test consists of 30 questions, of which you must correctly answer at least 24. The endorsement fee is $13.
To obtain a CDL Hazmat license, you must have a valid Commercial Driver's License (CDL). You must also pass a Hazardous Materials Endorsement Knowledge Test and be at least 21 years old. Additionally, you'll need to undergo a federal security threat assessment (background check) and have your fingerprints taken. You should also be in good physical health.
When applying for a CDL Hazmat endorsement, you'll need your current valid CDL, proof of U.S. Citizenship or lawful permanent residency (like a passport or birth certificate), and proof of your Social Security number. You'll also need to complete the Hazardous Materials Endorsement application form and pay the necessary fees. Finally, you'll need to provide fingerprints for the background check.
Yes, there is a dedicated written test for the CDL Hazmat endorsement. This test covers topics like loading and unloading hazardous materials, bulk packaging marking, driving and parking rules, and emergency response procedures. The test is designed to ensure that you understand the rules and regulations associated with transporting hazardous materials.
The written test for the CDL Hazmat endorsement in Minnesota covers a range of topics related to hazardous materials transport. These include identifying hazardous materials, safe loading and unloading procedures, correct use of placards and labels, understanding shipping papers, handling emergencies, and adhering to relevant driving and parking rules.
Yes, there are extra charges associated with acquiring a CDL Hazmat endorsement. These include the application fee, fingerprinting fee, and background check fee. The exact amounts can vary, so it's best to check with the Minnesota Department of Public Safety or the agency issuing the endorsement for the most current fees.
Yes, obtaining a CDL Hazmat endorsement requires a background check and security clearance. The Transportation Security Administration (TSA) conducts this check. It includes a review of criminal, immigration, and FBI records. This process ensures that hazardous materials are transported by individuals who do not pose a security risk.
Yes, obtaining a CDL Hazmat endorsement requires specialized training and certification. The applicant must pass a written test on hazardous material transportation regulations, safety procedures, and emergency response. After passing the test, the driver receives the Hazmat endorsement on their CDL, certifying they have the necessary knowledge and skills.
No, you cannot transport hazardous materials without a valid CDL Hazmat endorsement in Minnesota. This endorsement is a legal requirement set by the Federal Motor Carrier Safety Administration. It ensures that drivers are properly trained and equipped to handle and transport hazardous materials safely. Violating this rule can lead to serious penalties.
Yes, you can add the Hazmat endorsement to your current CDL license. You don't need a new CDL application. However, you must pass the Hazmat knowledge test, undergo a federal background check and fingerprinting by the TSA, and pay the required fees to add the endorsement to your existing CDL.