In an air brake system, a low air pressure warning signal must come on if air pressure in the tanks falls below 55 psi. This warning signal may come in the form of a light, a buzzer, or a wig wag.

When tank pressure falls below 55 psi.

When tank pressure falls below 120 psi.

When tank pressure falls below 55 psi.

When tank pressure falls below 10 psi.

A steering wheel should be held firmly with both hands, positioned on opposite sides of the wheel.

With one hand, keeping the other hand free for other tasks.

With one hand at a time, alternating between hands.

You should always make sure that your vehicle will be able to stop within the area of the road that you are able to see. This means that you must slow down whenever conditions reduce visibility.

30 seconds of hitting the brakes.

On many vehicles, multi-speed rear axles and auxiliary transmissions are used to provide extra gears.

To make a vehicle operate more smoothly

To improve a vehicle's gas mileage

It is a driver's responsibility to make sure their vehicle is not overloaded. They must be aware of legal weight limits and the maximum weight that their vehicle is rated to carry, including the weight capacity rating of the suspension system.

The vehicle’s suspension rating.

The tire rating for the front tires only.

The tire rating for the rear tires only.

Class B Driving Test | Nebraska 2025 #2 Page 2 of 7

Train for FREE online with our Nebraska 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 NE 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.

Number of Question 50

Passing Score 40

Number of Tests 20

Class B Driving Test | Nebraska 2025 #2 Page 2 of 7

8 . When conducting a check of the engine compartment during a vehicle inspection, you should not:

9 . A low air pressure warning signal should activate:

10 . A steering wheel should be held:

11 . You should always be able to stop within:

12 . Why are multi-speed axles and auxiliary transmissions used?

13 . To determine if a vehicle can handle a load, you must know:

14 . If air pressure drops to a level between ____, a visual low pressure warning signal should have already activated.

See the exact questions that will be on the 2025 DMV exam.

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