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

Within 3 minutes, this gauge pressure should build to 90 psi from 50 psi.

2 / 40

Which trailer should be the first one after the tractor?

3 / 40

Which of the following factors is NOT used to determine your safe speed when going down a long steep downgrade?

4 / 40

You should_____when the low pressure warning is activated:

5 / 40

How should you know when to shift?

6 / 40

When should you check your mirrors for a lane change?

7 / 40

What method should be used to test that the air is flowing to all the trailers?

8 / 40

The most stable tanker shape is:

9 / 40

You should decrease to a safe speed before entering a curve and then_____through it.

10 / 40

You should make sure the_____before backing under a trailer.

11 / 40

Tires should should be replaced:

12 / 40

Select the true statement about convex ("spot") mirrors.

13 / 40

When not towing a trailer, why should the tractor glad hands be locked?

14 / 40

The walls that separate compartments inside the tanks and having openings at the top and bottom are called:

15 / 40

How many different hazard classes are there?

16 / 40

A hazard class that uses transport indexes to determine the amount that can be loaded in a single vehicle is _____.

17 / 40

What is the correct number of red reflective triangles that you should carry?

18 / 40

There are 2 reasons as to why hauling liquids take special care. One reason is the ___center of gravity.

19 / 40

This object should not be worn dangerously thin where visible.

20 / 40

The emergency air line is used to:

21 / 40

What will occur as a result of failing to perform all 3 components of the air brake check?

22 / 40

How much space should you see between the lower and upper fifth wheel when checking the coupling of a converter dolly?

23 / 40

Drivers placard their vehicle to _____ the risk.

24 / 40

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

25 / 40

If you are hauling hazardous materials and have ___ tires on your vehicle, you must stop and check them every time you park.

26 / 40

Suspension systems:

27 / 40

This object should not be damaged, bent, or rusted through and be evenly centered with the tires and dual wheels evenly separated.

28 / 40

On a drawbridge, you do not need to stop, but must slow down and make sure it's safe, when:

29 / 40

Cylinders containing compressed gases may only be loaded onto a vehicle without a flat floor or platform if the cylinders are:

30 / 40

Select the best description of a baffle tank:

31 / 40

To maintain alertness during the trip, drivers should:

32 / 40

Which of these statements about signaling is correct?

33 / 40

You downshift automatic transmissions ______.

34 / 40

Which of the following types of emergency equipment must you have on your bus?

35 / 40

It is important to know the outage required for the liquids you carry because:

36 / 40

The floor liner for explosives may not:

37 / 40

How do you release the dolly brakes when coupling twin trailers?

38 / 40

In the event of an accident you should remember to do the following EXCEPT:

39 / 40

How do you check the power steering fluid?

40 / 40

Select the item that is not checked in the engine compartment:

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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.