South Dakota CDL General Knowledge Practice Exam 2026

This South Dakota CDL general knowledge test simulator mirrors the real CDL exam as closely as practice can. If you have been looking for a true commercial drivers license test experience or a straight cdl knowledge test rehearsal, this 2026 drill delivers the format, the topic spread, and the pressure of the genuine article.

Here is the answer to the question everyone asks: the South Dakota CDL general knowledge test has 50 questions, and you must get 40 right, a score of 80 percent, to pass. That standard comes from the FMCSA and applies to every commercial driver license applicant in the state, whether you are testing in Sioux Falls, Rapid City, or Pierre. Passing this written exam is what earns your Commercial Learner's Permit.

Treat any missed question as a cue to reread the relevant chapter of the South Dakota Commercial Driver License Manual, the source of truth behind every answer. Keep running this South Dakota CDL exam simulation until 80 percent is routine, then book the official test with South Dakota Driver Licensing.

Keep going:

• South Dakota CDL Practice Test
• South Dakota CDL Practice Test 2
• South Dakota CDL Practice Test 3
• South Dakota CDL Practice Test 4
• South Dakota Air Brakes Practice Test
• South Dakota CDL Combination Practice Test
• South Dakota CDL Pre-Trip Inspection Practice Test
• South Dakota Hazmat Practice Test
• South Dakota Class A CDL Practice Test
• South Dakota CDL Practice Test

Every question traces back to the South Dakota CDL Manual - skim the right-of-way and signs chapters before your retake.