Cargo should be inspected by a driver to ensure that it is properly secured, balanced, and not exceeding weight limits.

Ensure that the breakable items are placed under heavier items.

Ensure that the truck is not overloaded.

Ensure that the cargo is balanced.

Ensure that the cargo is secured properly.

Ensure that the breakable items are placed under heavier items.

Backing is always dangerous because you cannot see everything behind your vehicle. Especially if you are unfamiliar with the area, you should get out of your vehicle and familiarize yourself with your path of travel before beginning to back up.

Get out of your vehicle and walk around the area to become more familiar with it.

Not use both mirrors, as that can cause too much distraction.

Wait for someone else to back up in the area so you see how they do it.

Turn on your high beam headlights.

Over-length, over-width, and/or overweight loads may require special permits from the Department of Transportation.

Roads to be closed to other traffic.

A person to walk alongside the vehicle.

Never apply the brake pedal if your spring breaks are activated. Brakes can be damaged if they are subject to both springs and air pressure.

Release air from the air storage tanks.

When properly adjusted, your mirrors should each display some part of your vehicle. Being able to see your own vehicle in your mirrors will give you a point of reference when judging the positions of other objects.

Part of your vehicle should be visible in the mirrors.

No part of your vehicle should be visible in any mirror.

Part of your vehicle should be visible in the mirrors.

More than half of each mirror should show the vehicle.

If your hydraulic braking system will not build up the pressure needed to slow or stop your vehicle, there are a few possible solutions. Try shifting into a lower gear, pumping the brakes, and/or using the emergency brake.

Hold the brake pedal down as far as it will go.

Class B Driving Test | South Dakota 2025 #1 Page 3 of 7

Train for FREE online with our South 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 SD 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 | South Dakota 2025 #1 Page 3 of 7

15 . When inspecting cargo, the driver should do all of the following, except:

16 . If you’re unfamiliar with the area in which you must back up, you should:

17 . Over-length loads require:

18 . Extremely hot temperatures can cause:

19 . If the spring brakes are activated, you should never:

20 . When adjusting your mirrors before a trip:

21 . What should you do if the braking system cannot build up hydraulic pressure?

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