south dakota
CDL Practice Test

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This is a practice test site for the CDL test in South Dakota. Use this site as a resource as you prepare to take your SD CDL test. You can take these practice tests and go through these questions as many times as you like, and the site is free to use. Questions on these practice tests cover areas such as driving weight requirements and passenger restrictions as covered in the South Dakota CDL Manual. You will be presented with 40 questions and you must answer 34 questions correctly to pass. There is a 50-minute time limit. You may not go back once you answer a question. Click the "Start Test" button below to begin.

1 / 40

Why do air brakes take longer to stop than hydraulic brakes?

2 / 40

As the driver of a bus, how can you best avoid hindering other traffic on the highway?

3 / 40

You must have placards for explosives, poison gas or flammables exceeding:

4 / 40

The object that doesn't get checked at the side of the trailer is the:

5 / 40

The school bus driver may be the only contact person from school system some parents meet. The percentage of such parents is as high as:

6 / 40

Select the vehicle that off-tracks the most.

7 / 40

What is the most important reason for doing a vehicle inspection?

8 / 40

The purpose for the emergency air line is:

9 / 40

Air pressure loss in a vehicle with a fully charged air system should be less than_______after the initial drop and brake applied.

10 / 40

Select when you should use the parking brake:

11 / 40

To decide which placards you need, if any, what three things do you need to know?

12 / 40

How do you check the air compressor governor "cut in" and "cut out" pressures?

13 / 40

Anti-lock brakes:

14 / 40

Air pressure should build___with a dual air system.

15 / 40

Select the true statement in regards to a converter dolly:

16 / 40

Which of these statements about speed management and braking is true?

17 / 40

On a bus, you may sometimes haul small-arms ammunition, emergency shipments of drugs, or hospital supplies. The total weight of all such hazardous materials must not be greater than:

18 / 40

Air brake systems should not lose air faster than____when testing for air leakage rates in combination vehicles before applying the brake pedal.

19 / 40

Select the statement of what you should not do if you are required to drive through flowing water or deep puddles.

20 / 40

How many seats may be placed in the aisle if the bus is a charter and is carrying agricultural (farm) workers?

21 / 40

Select the statement that best describes what the service line is for.

22 / 40

What are spring brakes?

23 / 40

The Emergency Response Guide, ERG, can best be explained as _____.

24 / 40

A tank vehicle:

25 / 40

At what pressure is the safety valve in the air compressor tank set to open?

26 / 40

The crack-the-whip effect is more likely to cause the front trailer to tip over.

27 / 40

What school bus accidents should be reported?

28 / 40

When approaching a school bus stop, you should:

29 / 40

Which of the following statements about overhead space is true?

30 / 40

When driving on a clear night with the vehicle lights on, your speed should be such that you can stop within _____.

31 / 40

Which trailer should be the first one after the tractor?

32 / 40

Select the portion of the combination vehicle that is most likely to turn over suddenly when pulling a double trailer:

33 / 40

Select which is not a mandatory emergency equipment:

34 / 40

Wet brakes can cause _____.

35 / 40

Select what you should not do when coupling the glad hands.

36 / 40

Air tanks need to be drained:

37 / 40

Which of the following statements about the bus interior is false?

38 / 40

What will probably happen if the converter dolly is still under the second trailer and the pintle hook is unhooked?

39 / 40

One reason hauling liquids in tank vehciles require special care is:

40 / 40

When you have a major leak in the service line and you apply pressure to the brakes, the service air pressure will escape and:

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CDL Category Practice Tests

CDL Practice Test

How To Get A south dakota Commercial Drivers License

To be eligible for a CDL in South Dakota, applicants must meet the following age eligibility requirements.

  • Be at least 18 years old to operate a commercial vehicle intrastate (within South Dakota only).
  • Be at least 21 years old to operate a commercial vehicle interstate (outside of South Dakota).

South Dakota CDL applicants must be medically certified that they are healthy enough to operate a commercial vehicle and pass a vision test. Applicants are required to submit the following documents.

  • (REV 2015) Medical Self-Certification Statement
  • (Form MCSA-5876) Medical Examiner’s Certificate (This document must be completed by an FMCSA-approved physician.)

Interstate non-excepted (drivers who do not work for the state or federal governments) must meet federal DOT requirements. Intrastate non-excepted drivers must meet the state requirements. Drivers who have had their licenses revoked, suspended, denied or canceled are not eligible for a CDL in South Dakota. Applicants can be disqualified for having multiple licenses.

South Dakota CDL Endorsements

  • H – Hazmat Vehicles
  • N – Tank Vehicles
  • P – Passenger Vehicles
  • S – School Bus
  • T – Double or Triple Trailer
  • X – Combination Tank Vehicles and Hazmat Vehicles

Hit the Open Road

south dakota CDL License Test Tips

All South Dakota CDL applicants must pass the general knowledge test prior to taking the skills test. This test consists of 50 questions. To pass the South Dakota test, applicants must score 80 percent or higher. Applicants who require additional endorsements must pass additional tests and pay the required fees. The South Dakota skills test can be taken 14 days after applicants pass the knowledge test. It includes a pre-trip vehicle inspection, basic control skills and on-road driving. Applicants must pass each section.

Military veterans and current military members can apply to have the skills exam waived if they meet the requirements. To qualify for a waiver, applicants must:

  • Be a South Dakota resident with a valid state driver’s license.
  • Be currently enlisted in the military.
  • Operate a commercial vehicle as part of their military duties for at least 2 years prior to submitting the CDL application. If applicants are in the military reserves or a veteran of the reserves, the vehicle operation requirement is 4 years.
  • Have been honorably discharged from the military within the past 12 months.
  • Submit (Form CDL-SK TST WVR) Application for Military Skills Test Waiver. The commanding officer must sign this document.

Additional Information

Information on the South Dakota Department of Public Safety

The South Dakota Division of Public Safety administers CDL license requirements in South Dakota. To get more information contact them via:

Website: https://dps.sd.gov/driver-licensing/commercial-drivers-license

Phone:  605.773.6883

 

Additional South Dakota CDL Helpful Links

Please use the links below to access South Dakota CDL testing resources and to learn more about practice driving tests for the state of South Dakota.