Combination #2
Combination Vehicles Practice Test | North Dakota 2025 #2
Train for FREE online with our North Dakota CDL combination vehicle 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 combination 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 DMV requirements for issuing a combination license may vary from state to state.
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1 . An air supply control in its "emergency" position will:
Accelerate the vehicle.
Tractor protection controls in older vehicles may be operated by levers instead of knobs. If an air supply control is set in its "emergency" position, the air supply will be stopped and the trailer emergency brakes will be applied.
2 . A combination vehicle has:
Four air lines.
Combination vehicles have two air lines: a service line and an emergency line.
3 . Fully-loaded rigs:
Should not be driven.
Because the weight of cargo gives them a higher center of gravity, fully-loaded rigs are 10 times more likely to roll over in a crash than empty rigs.
4 . When driving a trailer with ABS, you should:
Try to not brakes as often as you would when driving a vehicle without ABS.
When driving a tractor-trailer combination equipped with an Anti-Lock Braking System (ABS), you should brake in the same manner that you would if operating a vehicle without ABS.
5 . Using the trailer hand brake while experiencing a trailer jackknife will:
Continue the skid.
If you are experiencing a trailer jackknife, you can help your tires regain traction by releasing the brakes. Using a trailer hand brake while experiencing a skid will only cause the skid to continue.
6 . When coupling a trailer:
Only one set of glad hands should be connected.
When coupling, make sure you couple matching glad hands. They are often color-coded to help drivers avoid mistakes. Typically, blue is used for service lines and red is used for emergency lines.
7 . If unsure if a trailer is equipped with ABS, you can:
Remove a tire and look for the ABS sensor on the axle.
Trailers and converter dollies built on or after March 1, 1998 are required to have Anti-Lock Braking Systems (ABS). This will be indicated by the presence of a yellow malfunction lamp. You can determine if older trailers have ABS by checking under the trailers for ECU and wheel speed sensor wires coming from the back of the brakes.
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2025 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.
