Knowledge Test Class B #1
Class B Driving Test | South Dakota 2026 #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 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.
50
40
20
15 . When inspecting cargo, the driver should do all of the following, except:
Ensure that the breakable items are placed under heavier items.
Cargo should be inspected by a driver to ensure that it is properly secured, balanced, and not exceeding weight limits.
16 . If you’re unfamiliar with the area in which you must back up, you should:
Turn on your high beam headlights.
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.
17 . Over-length loads require:
Over-length, over-width, and/or overweight loads may require special permits from the Department of Transportation.
18 . Extremely hot temperatures can cause:
Increased gas mileage.
Because air expands when hot, tire pressure increases as temperatures increase. This can sometimes result in tire failure. Consistently check your tire pressure when making a trip in hot weather.
19 . If the spring brakes are activated, you should never:
Open the door to the cab.
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.
20 . When adjusting your mirrors before a trip:
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.
21 . What should you do if the braking system cannot build up hydraulic pressure?
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.
2026 South Dakota | Frequently Asked Questions
To acquire a CDL Passenger endorsement in South Dakota, you need to first have a valid commercial driver's license (CDL). Next, study the Passenger endorsement section in the SD CDL manual. Afterwards, apply at your local DMV and pass the written Passenger endorsement test. Finally, complete the required training hours and pass the skills test.
To obtain a CDL Passenger license in South Dakota, you must be at least 21 years old, possess a valid CDL and pass the Passenger Endorsement Knowledge test. You also need to pass a driving skills test in the type of vehicle you plan to drive. A medical examination is required too, proving that you're physically capable to drive a commercial vehicle.
Yes, to secure a CDL Passenger endorsement, you need specific training. After passing the Passenger Endorsement Knowledge test, you must complete a skills test in the type of vehicle you plan to drive. This includes pre-trip vehicle inspection, basic vehicle control, and on-road driving. Hands-on training or experience driving commercial passenger vehicles is highly recommended before taking these tests.
Yes, to obtain a CDL Passenger endorsement in South Dakota, you must pass the Passenger Endorsement Knowledge test. This written exam covers topics like vehicle inspection, loading and trip start, on the road, after-trip vehicle inspection, prohibited practices, and use of brake-door interlocks. Passing this test is mandatory in addition to the standard CDL written test.
During the CDL Passenger endorsement assessment in South Dakota, you'll be required to demonstrate a pre-trip vehicle inspection, basic vehicle control, and on-road driving. These skills include checking safety equipment, controlling the vehicle under various conditions, and navigating through traffic. You also need to show understanding of passenger safety procedures and appropriate response in emergency situations.
No, you cannot legally transport passengers in South Dakota without a valid CDL Passenger endorsement. This endorsement is required for drivers who wish to drive a vehicle designed to carry 16 or more passengers, including the driver. Driving without the appropriate endorsement can lead to serious penalties, including fines and suspension of your commercial driving privileges.
You can add the CDL Passenger endorsement to your existing commercial driver's license in South Dakota. You don't need a new application. However, you must pass the Passenger Transport written test and the skills test in a passenger vehicle. Once you pass these tests, the endorsement will be added to your CDL.
Yes, there are specific restrictions for drivers with a CDL Passenger endorsement in South Dakota. These include maintaining a clean driving record, passing a background check, and undergoing regular drug and alcohol testing. Additionally, drivers must obey all traffic laws, ensure passenger safety, and comply with federal and state transportation regulations. Failure to adhere to these rules can result in the loss of the endorsement.
Yes, there are age-related prerequisites for acquiring the CDL Passenger endorsement in South Dakota. Applicants must be at least 21 years old to drive commercial vehicles across state lines (interstate) or 18 years old for within the state (intrastate). Additionally, all applicants must possess a full, valid driver's license before applying for a commercial driver's license.
With a CDL Passenger endorsement in South Dakota, you'll be eligible to operate vehicles like buses, shuttles, and any other commercial vehicle designed to carry 16 or more passengers, including the driver. This endorsement is particularly useful for those wishing to drive city buses, tour buses, school buses (additional school bus endorsement required), and certain types of limousines.