Air Brakes #1
Air Brakes Endorsement Test | North Dakota 2024 #1 Page 4 of 4
Train for FREE online with our North Dakota 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 ND 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 . Which part of the truck is the air compressor connected to?
The door latch
In an air brake system, the air compressor is connected to the engine through gears or a v-belt.
20 . Failing to drain the tanks in an air brake system can result in:
Too much fuel being carried.
In an air brake system, the air storage tanks must be drained to remove accumulated water and compressor oil. Failing to do this can cause damage. For example, water that has built up in the system could freeze in cold weather and cause brake failure.
21 . The ____ tells a driver how much pressure is in the air tanks.
Drum brake
A vehicle that is equipped with air brakes must also be equipped with a supply pressure gauge. This gauge tells the driver how much air pressure is in each of the vehicle's air tanks.
22 . If using the spring brakes while hauling a heavy load, a complete stop will:
Damage the brakes.
Spring brakes will activate in a vehicle with air brakes if the pressure in the air system becomes too low. A heavily loaded vehicle will take a long time to stop when using only the spring brakes because the spring brakes do not work on all axles.
23 . A low air pressure warning signal should activate:
When tank pressure falls below 5 psi.
In an air brake system, a low air pressure warning signal must come on if air pressure in the tanks falls below 60 psi. This warning signal may come in the form of a light, a buzzer, or a wig wag.
24 . Using an Anti-Lock Braking System (ABS):
Provides more control.
An Anti-Lock Braking System (ABS) helps prevent wheel lockup during hard braking. While it provides better control, it does not necessarily shorten a vehicle's stopping distance.
25 . Friction inside a brake drum is caused when the brake shoes and linings:
Create excess heat.
Friction inside a brake drum is caused when the brake shoes and linings push against the inside of the drum. The friction in the drums will slow and stop the vehicle.
2024 North Dakota | Frequently Asked Questions
A CDL Class A license in North Dakota is a commercial driver's license that allows the holder to operate any combination of vehicles with a Gross Vehicle Weight Rating (GVWR) of 26,001 pounds or more, provided the towed vehicle is heavier than 10,000 pounds. It's typically used for driving tractor-trailers, truck and trailer combinations, or tank vehicles.
A Class A CDL license allows the holder to operate a variety of large vehicles. These include tractor-trailers, truck and trailer combinations, livestock carriers, and flatbeds. Additionally, it permits the operation of vehicles towing over 10,000 pounds such as large trailers, mobile homes, and more. Remember that endorsements may be required for specific types of vehicles.
To obtain a Class A CDL license in North Dakota, you must be at least 18 years old (21 for interstate driving), possess a valid North Dakota driver's license, and pass a vision test. You must also pass a written knowledge test and a three-part skills test, which includes pre-trip vehicle inspection, basic vehicle control, and on-road driving. Medical examinations may also be required.
To qualify for a Class A CDL license in North Dakota, you must be at least 18 years old for intrastate driving (within North Dakota only) and at least 21 years old for interstate driving (across state lines). You also need to pass both written and skills tests.
Specific endorsements aren't required for a Class A CDL license, but they can expand your driving privileges. Endorsements include: H for hazardous materials, N for tank vehicles, P for passenger vehicles, S for school buses, and T for double/triple trailers. Each endorsement requires passing additional tests. Having these can increase job opportunities and versatility as a driver.
The Class A CDL skills test in North Dakota encompasses three parts: a pre-trip vehicle inspection to test your ability to assess the condition of your vehicle, a basic vehicle control test to evaluate your control over the vehicle in various situations, and an on-road driving test to assess your practical driving skills under typical road conditions.
Yes, there are limitations for Class A CDL license holders. Some include: you must be 21 years old to drive across state lines or transport hazardous materials. Additionally, specific endorsements may be required for certain types of vehicles. Also, all CDL drivers are subject to stricter blood alcohol content regulations compared to non-commercial drivers.
No, in North Dakota, the written test for a Class A CDL is only offered in English. This is because federal regulations require that all commercial drivers be able to read and understand English to ensure safety on the roads.
Yes, you can request accommodations for the Class A CDL written test if you have a disability. The North Dakota Department of Transportation provides aids and services to people with disabilities to communicate effectively. It's recommended to contact your local testing center ahead of time to discuss your specific needs and arrange suitable accommodations.
Yes, if you don't pass the Class A CDL written test in North Dakota, you can retake it. There's a waiting period of at least one day before you can retake the test. Each retest requires an additional fee. It's advised to study the CDL manual thoroughly before attempting the test again to increase your chances of passing.