Because you can't see everything behind you, driving in reverse is always dangerous and should be done only when necessary. Before backing into an area, you should exit your vehicle and inspect the path of travel to check for potential hazards, especially overhanging objects that would otherwise be difficult to spot in a mirror.

Inspect the area before backing.

Cut wires or branches as necessary.

Inspect the area before backing.

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.

When tank pressure falls below 5 psi.

In the event of an engine fire, turn off the engine as soon as possible. Do not open the hood if you can avoid doing so.

Turn off the engine as soon as possible.

Shoot foam through the louvers.

On a wet road, it is possible for a vehicle's tires to lose traction with the road surface and begin to glide along on the layer of water. This is referred to as hydroplaning. Hydroplaning can occur at speeds as low as 30 mph.

The tires lose contact with the road.

The trailer disengages from the tractor.

The vehicle becomes easier to control.

Black ice is a layer of ice that is thin and clear enough for the road to be visible through it. The surface will look like a wet road. Always be alert to black ice if the road looks wet when the temperature is below freezing.

A thin layer of ice on the road.

A thick layer of ice on the road.

A thin layer of ice on the road.

Ice that is black from debris on the road.

Class B Driving Test | Alaska 2026 #1 Page 4 of 7

Train for FREE online with our Alaska 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 AK CDL class B 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 B requirements may vary from state to state.

Number of Question 50

Passing Score 40

Number of Tests 20

Class B Driving Test | Alaska 2026 #1 Page 4 of 7

22 . If planning to back a vehicle where there may be overhanging objects, a driver should:

23 . A low air pressure warning signal should activate:

24 . In the case of an engine fire, you should not:

25 . What happens when a vehicle hydroplanes?

26 . Black ice is:

27 . Interstate carriers must have what information affixed to both sides of a CMV?

28 . When checking your tires as part of the pre-trip inspection, you should look at the:

See the exact questions that will be on the 2026 DMV exam.

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