Tank Endorsement Test | North Dakota 2025 #2

Train for FREE with our North Dakota tank endorsement practice test online. 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 tank 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 CDL tank vehicle endorsement may vary from state to state.

Number of Question 20

Passing Score 16

Number of Tests 20

1 . At what psi is the safety valve set to open?

100 psi

150 psi

200 psi

500 psi

In an air brake system, the first tank that receives compressed air has a safety valve that releases air if the pressure gets too high. It is usually set to open at 150 psi. If the valve must open, there is a fault in the system that should be repaired by a mechanic.

2 . Which of the following is not a type of retarder?

Exhaust

Engine

Air

Electric

Retarders are mechanisms in some vehicles that help slow a vehicle and reduce the need for braking. The four basic types of retarders are exhaust, engine, hydraulic, and electric.

3 . When backing in an unfamiliar area, using driver-side backing is:

Encouraged so you can see better.

Discouraged. You should look to both sides equally.

Only recommended if it is raining.

Illegal when transporting hazardous materials.

If you must back up, it is safest to back toward the driver's side of the vehicle. This way, as the driver, you will have the best possible view of your path of travel.

4 . If driving in a foggy area, you should not:

Decrease your speed.

Increase your speed.

Use your low beam headlights.

Turn on your four-way flashers.

It is safest not to drive in foggy areas. However, if you must drive through fog, you should slow down, use your low beam headlights and fog lights, and turn on your four-way flashers.

5 . What do bulkheads do?

Separate one large tank into several smaller tanks

Control the temperature of liquid in a tank

Determine how full a tank is

Provide extra storage in a tank

Bulkheads divide a large tank into multiple smaller tanks. A driver must pay special attention to weight distribution when driving a tank vehicle that has been separated by bulkheads.

6 . Which of the following is not a rule for using turn signals?

Signal early.

Signal continuously.

Cancel your signal once your turn or lane change is complete.

Don’t signal unless another vehicle is close.

Always signal before a turn or lane change. Begin signaling well in advance of the movement and keep the signal on continuously during the turn. If it is not self-canceling, make sure to turn your signal off after your turn or lane change is complete.

7 . The controlled braking method is:

When the driver locks the wheels and steers.

When the driver uses the brakes as hard as possible without locking the wheels.

When the driver only slightly taps the brakes.

When the driver downshifts the gears to brake.

The method of controlled braking involves applying the brakes as hard as you can without locking the wheels. If you need to make large steering adjustments while using controlled braking, you should remove your foot from the brake pedal, steer, then reapply 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.