Knowledge Test Class B #1
Class B Driving Test | South Dakota 2025 #1 Page 4 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.
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22 . Without oil in its engine:
A vehicle's gas mileage will improve.
An engine can be rapidly destroyed if it is run without oil. If its oil pressure gauge is low or fluctuating, do not operate a vehicle.
23 . The two indicators that determine when you should upshift are:
There are two indicators that determine when you need to shift into a higher gear. One indicator is the engine speed (rpm). You should read your vehicle's manual to learn its rpm range and shift up when you reach the top of that range. The other indicator is road speed (mph). You should learn which speeds each gear can accommodate, then keep an eye on the speedometer and shift up as needed.
24 . When accelerating on a surface with poor traction, such as a wet road, a driver should:
You should accelerate very gradually when driving under conditions that create poor traction.
25 . What should be used to check for proper tire inflation?
A lug nut
During the vehicle inspection test, you must use a tire gauge to check for proper tire inflation. You will not receive passing credit if you simply kick the tires.
26 . When starting a vehicle, the coolant temperature gauge should:
Flash until it reaches the normal operating range.
Keep an eye on the gauges after starting the engine. The coolant temperature gauge should begin a gradual rise to the normal operating range.
27 . A second conviction of operating a CMV with a minimum blood alcohol concentration (BAC) of 0.04 percent will result in:
It is illegal to operate a CMV if your blood alcohol concentration (BAC) is 0.04 percent or higher. A first offense will result in the loss of your CDL for one year. A second offense will result in the loss of your CDL for life.
28 . If you plan to slow down, you can warn drivers behind you by:
Putting your hand out the driver's side window and waving.
Before slowing down, it is a good idea to flash your brake lights by lightly tapping your brake pedal a few times. This will warn drivers behind you of your plans to slow down.
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2025 South Dakota | Frequently Asked Questions
To acquire a CDL Hazmat endorsement in South Dakota, you must first have a valid CDL license. Then, pass the Hazmat Knowledge Test at your local DMV. You will also need to complete a background check through the Transportation Security Administration (TSA), including fingerprinting. Once approved, your endorsement will be added to your CDL.
To obtain a CDL Hazmat license, you must have a valid Commercial Driver's License (CDL). You must also pass the Hazardous Materials Endorsement Knowledge Test. In addition, you must complete a background check and fingerprinting through the Transportation Security Administration (TSA). A clean driving record and good physical health are also typically required.
When applying for a CDL Hazmat endorsement in South Dakota, you'll need to provide proof of U.S. citizenship or legal presence, such as a passport or birth certificate. You'll also need your current CDL, social security card, and proof of South Dakota residency. Lastly, you'll need a completed Medical Examination Report Form and Medical Examiner's Certificate.
Yes, there is a dedicated written test for the CDL Hazmat endorsement. This test, known as the Hazardous Materials Endorsement Knowledge Test, focuses on topics such as loading and unloading hazardous materials, bulk packaging marking, driving and parking rules, and emergency response procedures. Passing this test is a requirement for obtaining the Hazmat endorsement.
The Hazardous Materials Endorsement Knowledge Test covers several subjects related to transporting hazardous materials. Topics include recognizing hazardous materials, understanding shipping papers, placarding rules, loading and unloading procedures, driving and parking rules, responding to emergencies, and understanding bulk tank loading, unloading, and marking. Knowledge of these subjects is crucial for safely transporting hazardous materials.
Yes, there are additional charges linked to acquiring a CDL Hazmat endorsement in South Dakota. These include the cost of the written test, the endorsement fee, and a background check fee. The exact costs can vary, so it's recommended to check with the South Dakota Department of Public Safety for the most current fees.
Yes, obtaining a CDL Hazmat endorsement in South Dakota requires a background check and security clearance. This involves fingerprinting and a review of your criminal history. The Transportation Security Administration (TSA) conducts this check to ensure you don't pose a security threat. It's essential to have a clean record for successful approval.
Yes, specialized training is required for the CDL Hazmat endorsement. Applicants must pass the Hazardous Materials Endorsement Knowledge Test. While not mandatory, many candidates choose to complete a training course before taking the test. Certification is achieved by passing the test and completing a background check.
No, you cannot legally transport hazardous materials without a valid CDL Hazmat endorsement in South Dakota. This endorsement is required by federal law and ensures that drivers have the necessary knowledge and training to safely handle and transport hazardous materials. Failure to comply could result in hefty fines or penalties.
Yes, you can add the CDL Hazmat endorsement to your current CDL license in South Dakota. However, you'll need to pass a written test and undergo a TSA background check. It's not a completely new application, but an addition to your existing CDL. Remember to bring your current CDL when you apply for the endorsement.
