Free 2026 SD DMV Practice Tests

Based on the official South Dakota Driver's Handbook. Get ready for your SD DPS written exam with our comprehensive practice tests.

SD CDL General Knowledge

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Questions 30
Mistakes 6 Max
Passing 80%

SD CDL Air Brakes

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Questions 25
Mistakes 5 Max
Passing 80%

SD CDL Combination Vehicles

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Questions 20
Mistakes 4 Max
Passing 80%

SD CDL Hazmat (H)

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Questions 30
Mistakes 6 Max
Passing 80%

SD CDL Tanker (N)

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Questions 20
Mistakes 4 Max
Passing 80%

SD CDL Doubles & Triples (T)

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Questions 20
Mistakes 4 Max
Passing 80%

SD CDL Passenger (P)

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Questions 20
Mistakes 4 Max
Passing 80%

SD CDL School Bus (S)

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Questions 20
Mistakes 4 Max
Passing 80%

Practice by Topic

Commercial Driver's License (CDL)

Class A Prep Class B Prep Class C Prep Air Brakes Endorsement

What to Expect on the South Dakota CDL Test

Format

Knowledge test on rules of road and safe driving; passing score 80% or higher.

Time limit

No time limit

Test fee

$28

$28.00 instruction permit fee includes up to 3 test attempts within 6 months.
Booking

Yes.

Retake policy

3 attempts per fee paid within a 6-month period.

1-day wait between attempts.

Languages offered

English, Spanish

Documents to Bring to Your South Dakota Test

Certified birth certificate, Social Security card, two pieces of mail proving residence (in applicant's or parent's name); parental consent if under 18.

South Dakota Rules You'll See on the Test

Rules unique to South Dakota that appear on the SD DPS knowledge test more than others.

  • gavel Instruction permit available at age 14 (one of youngest minimums in U.S.)
  • gavel Must hold instruction permit 275 days (or 180 with driver's ed) before restricted minor's permit
  • gavel 50 hours supervised driving required, including 10 hrs inclement weather and 10 hrs after dark
  • gavel Restricted minor's permit bans driving 10 p.m.-6 a.m. without parent/guardian
  • gavel All wireless device use banned while driving on instruction/restricted permit

South Dakota DMV Test FAQ

How many questions are on the South Dakota CDL permit test?

The SD DPS CDL knowledge test has 25 multiple-choice questions drawn from the official state handbook — covering road signs, traffic laws, right-of-way, and safe-driving procedures.

Where can I verify these South Dakota test details on an official source?

SD DPS publishes the authoritative rules at https://dps.sd.gov/driver-licensing/south-dakota-licensing-information/driving-tests. We refresh our numbers annually against that page — if you spot a discrepancy, the DMV site is the source of truth.

Do I need an appointment for the South Dakota knowledge test?

Yes.

Where can I read the official South Dakota driver handbook?

The SD DPS publishes the official manual on its website. We also mirror it, mobile-formatted, at /handbooks/sd/cdl.

Do I need endorsements beyond the South Dakota CDL general knowledge?

Depending on what you'll haul, yes: Hazmat (H), Tank (N), Doubles/Triples (T), Passenger (P), and School Bus (S) each have their own written test. Air Brakes (L) is also required for most tractor-trailer combos.

If I'm nervous, is it better to reschedule my South Dakota appointment?

If you consistently score at or above passing (80-85%+) on our practice tests, don't reschedule — test-day nerves usually drop 5-10 points and you'll still pass. If your practice scores are still below passing, more prep + a later date is worth it.

How early should I arrive for my South Dakota test appointment?

Arrive 15-20 minutes before your slot. SD DPS offices often move faster than the appointment time suggests, and late arrivals may forfeit the slot entirely.

Do I need a REAL ID version of my South Dakota license?

South Dakota issues REAL ID-compliant licenses identified by a gold star in the upper right corner of the card. REAL ID can be obtained at standard renewal without an additional fee by providing the required identity documents.

How many questions can I get wrong and still pass the South Dakota test?

You can miss at most 5 questions. Any more than that and SD DPS will mark it a fail — you'll need to retake.

On the South Dakota DMV test, should I answer what's literally in the handbook even if it seems overly cautious?

Yes. If the handbook says "come to a complete stop at every stop sign," answer that — even if in the real world people roll through. Test questions grade against the handbook, not real-world driving habits.