Air Brakes #1
Air Brakes Endorsement Test | Michigan 2024 #1 Page 4 of 4
Train for FREE online with our Michigan 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 MI Class A/Class B driver license in 2024, 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 . Brake linings should be:
Brake linings should not be loose or soaked with oil or grease. They shouldn't be dangerously thin.
20 . In a dual air brake system:
There are two air brake systems in a dual air brake system. The systems share a set of brake controls, but each system has its own tanks, hoses, and lines.
21 . Vehicles equipped with Anti-Lock Braking Systems (ABS) have ____ malfunction lamps to indicate when the ABS is not working.
Vehicles with ABS have yellow malfunction lamps to alert drivers when the braking systems are not working. Be sure you know where the malfunction lamp on your vehicle is before beginning a trip.
22 . An application pressure gauge shows:
If a vehicle is equipped, an application pressure gauge shows how much air pressure is being applied to the brakes. This gauge can help a driver identify if their brakes are beginning to fade.
23 . Before driving a vehicle with air brakes, you should ensure that the ____ come on automatically when air pressure falls below 45 psi.
Before driving a vehicle with air brakes, you should ensure that the spring brakes come on automatically when air tank pressure falls to a level between 20 and 45 psi. You can do this by chocking the wheels and releasing air from the braking system by stepping on and off the brake pedal. Once the pressure levels drop to an unsafe level, the parking brake valve should pop out and spring brakes should come on.
24 . When leaving a vehicle unattended, a driver should:
Always apply the parking brake when leaving your vehicle unattended.
25 . What do air brakes use to make the brakes work?
Many large CMVs are equipped with air brakes. An air braking system uses compressed air to operate.
2024 Michigan | Frequently Asked Questions
A CDL Class A license in Michigan allows the holder to operate any combination of vehicles with a Gross Combination Weight Rating (GCWR) of 26,001 pounds or more, provided the Gross Vehicle Weight Rating (GVWR) of the vehicle(s) being towed is in excess of 10,000 pounds. This typically includes tractor-trailers, truck and trailer combinations, and flatbeds.
A Class A CDL license in Michigan permits the holder to operate vehicles such as tractor-trailers, truck and trailer combinations, tanker vehicles, livestock carriers, and flatbeds. Essentially, it covers any combination of vehicles with a Gross Combination Weight Rating (GCWR) of 26,001 pounds or more if the towed vehicle exceeds 10,000 pounds.
To obtain a Class A CDL license in Michigan, you must be at least 18 years old (21 for interstate driving), have a valid Michigan driver's license, pass a vision test, and complete a self-certification of medical fitness. You also need to pass written knowledge tests and a skills test, which includes a pre-trip vehicle inspection, a basic controls test, and an on-road driving examination.
In Michigan, you must be at least 18 years old to qualify for a Class A Commercial Driver's License (CDL) for intrastate driving (within Michigan only). However, to drive interstate (across state lines) or to haul hazardous materials, you must be at least 21 years old.
While not always required, specific endorsements can be added to your Class A CDL license to permit the operation of certain vehicles or transport of specific goods. These include T (Double/Triple Trailers), P (Passenger), N (Tank Vehicles), H (Hazardous Materials), and X (Combination of Tank Vehicle and Hazardous Materials). Each endorsement requires passing additional knowledge tests.
The Class A CDL skills test in Michigan encompasses three parts: a pre-trip inspection, a basic vehicle control test, and an on-road driving test. The pre-trip inspection tests your ability to assess the safety of your vehicle. The basic control test evaluates your ability to maneuver and control the vehicle. The on-road test assesses your ability to safely operate the vehicle in various traffic situations.
Yes, certain limitations can be imposed on Class A CDL license holders in Michigan. These are called restrictions and are marked on the license. For example, an "E" restriction prohibits manual transmission use, an "L" restriction prohibits operation of vehicles with full air brakes, and a "Z" restriction prohibits the operation of a commercial motor vehicle equipped with any braking system operating fully on the air brake principle.
In Michigan, the written Class A CDL test is primarily administered in English, as federal regulations require commercial drivers to read and speak English. However, some locations may offer the test in other languages. It's recommended to contact your local testing center for specific information about language accommodations.
Yes, you can request accommodations for the Class A CDL written test if you have a disability. Michigan's Department of State is committed to providing accessible testing. The exact accommodations depend on the nature of your disability. Contact your local testing center in advance to discuss your needs and make appropriate arrangements.
Yes, if you don't pass the Class A CDL written test in Michigan, you can retake it. However, you must wait at least 24 hours before retesting. If you fail the test three times, you must wait 30 days from the last attempt to retake it. There may be additional fees for retesting.