Knowledge Test Class A #2
Class A Driving Test | North Dakota 2026 #2 Page 5 of 7
Train for FREE online with our North Dakota 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 ND CDL class A permit in 2026, 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 . The suspension system:
Lightens the load for the tires.
The suspension system holds up a vehicle and its load while keeping the axles in place. Faults in a vehicle's suspension system are extremely dangerous.
30 . What is the maximum legal length for a single unit vehicle with two or more axles?
50 feet
In North Dakota, a single unit vehicle with two or more axles, including its load, may be no more than 50 feet long.
31 . If feeling sleepy while driving, you should:
Take an energy pill.
If you begin to feel sleepy while driving, the only safe response is to stop driving and get some sleep. Attempting to fight off exhaustion is dangerous and a major cause of fatal crashes. Stimulants are not a safe solution because they may help keep you awake but will not make you more alert. Once stimulants wear off, you will be even more tired than you were originally.
32 . The air compressor governor controls:
The speed of the vehicle.
In an air brake system, the air compressor governor controls when the air compressor pumps air into the air storage tanks.
33 . 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.
34 . When preparing to drive in the winter, be sure to check:
All of the above.
Before driving during the winter, make sure to check your defrosting and heating equipment, coolant and antifreeze levels, wipers and washers, tire tread, tire chains, lights, reflectors, and exhaust system. Clear ice and snow from all windows, mirrors, hand holds, steps, deck plates, and radiator shutters. Make sure the winterfront is not closed too tightly.
35 . What is a way to warn drivers behind you that you will be slowing down?
Turn all lights on and off several times.
To alert drivers behind you that you plan to slow down, tap your brake pedal lightly a few times to make the brake lights flash.
2026 North Dakota | Frequently Asked Questions
In North Dakota, a Commercial Driver's License (CDL) Class B permits drivers to operate single vehicles with a Gross Vehicle Weight Rating (GVWR) of 26,001 or more pounds, or any such vehicle towing another not in excess of 10,000 pounds. This includes buses, farm labor vehicles, and any vehicle designed to transport 16 or more passengers including the driver.
A Class B CDL license in North Dakota allows the holder to operate single vehicles with a Gross Vehicle Weight Rating (GVWR) of 26,001 or more pounds, or tow a vehicle not exceeding 10,000 pounds. This includes large passenger buses, segmented buses, straight trucks, and dump trucks with small trailers.
To acquire a Class B 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, pass a vision test, and successfully complete both a written knowledge test and a skills test, which includes a pre-trip vehicle inspection, a basic controls test, and a road test. You also need to pass a medical examination.
In North Dakota, you must be at least 18 years old to qualify for a Class B CDL license. However, if you intend to drive commercially across state lines (interstate driving), federal regulations require that you be at least 21 years old.
While a Class B CDL license in North Dakota allows you to operate a single vehicle weighing over 26,000 pounds, specific endorsements may be required for certain types of vehicles or cargo. For instance, a passenger endorsement is needed for vehicles designed to carry 16 or more passengers, and a hazardous materials endorsement is required for transporting hazardous materials.
The Class B CDL skills assessment in North Dakota consists of three parts: a pre-trip vehicle inspection to test your ability to assess if the vehicle is safe to drive, a basic controls test to evaluate your ability to control the vehicle, and a road test to measure your on-road driving skills, including turning, merging, and navigating intersections.
Yes, Class B CDL license holders in North Dakota are limited to driving single vehicles with a GVWR of 26,001 or more pounds, or towing vehicles not exceeding 10,000 pounds. They cannot drive a tractor-trailer combination. Additionally, without specific endorsements, they cannot drive vehicles carrying hazardous materials or more than 15 passengers.
In North Dakota, the written Class B CDL test is primarily administered in English. However, some testing centers may offer the exam in other languages. It's advisable to contact your local Department of Transportation office to inquire about available language options for the test.
Yes, North Dakota Department of Transportation provides accommodations for individuals with disabilities taking the Class B CDL written exam. You must provide documentation of your disability and specify the type of accommodation needed. It's recommended to make this request well in advance of your scheduled test date to ensure proper arrangements can be made.
Yes, if you do not pass the Class B CDL written test in North Dakota, you can retake it. However, you must wait at least one day before retaking the exam. There's no limit on how many times you can retake the test, but each attempt requires a new test fee. It's recommended to study thoroughly before retesting.