Knowledge Test Class B #2

Class B Driving Test | North Dakota 2025 #2

Train for FREE online with our North Dakota class B 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 B permit in 2025, practice as much as..

Train for FREE online with our North Dakota class B 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 B permit 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 CDL class B requirements may vary from state to state.

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1 . 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.

2 . To use the controlled braking method, you should:

Pump the brakes. 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.

3 . To make a stop in a vehicle using air brakes, the driver should:

Pull out the brake knob. To make a normal stop in an air-braked vehicle, push the brake pedal down and control the pressure so that the vehicle comes to a smooth, safe stop.

4 . An Anti-Lock Braking System (ABS):

Should only be used if all axles have ABS. Anti-Lock Braking Systems (ABS) are compatible with air braking systems. ABS helps maintain control of a vehicle and prevents the wheels from locking up during hard braking on slippery surfaces. ABS can still provide benefits even if is present on only one axle.

5 . When checking your tires, which of the following is not an issue to correct?

Tread depth of at least 4/32 of an inch on the front tires Problems to check for when inspecting tires include: air pressure that is too low or too high; using radial and bias-ply tires together; tread depth of less than 4/32 of an inch in major grooves on front tires; and tread depth of less than 2/32 of an inch on all other tires.

6 . A commercial motor vehicle should:

Always be equipped with at least one fire extinguisher. Vehicles must be equipped with the appropriate emergency equipment. When inspecting a CMV, you should check for at least one fire extinguisher; spare electrical fuses, unless the vehicle is equipped with circuit breakers; and the appropriate warning devices to be used when the vehicle is parked.

7 . 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.

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