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SD CDL Combination Vehicles Practice Test 4 2025

Average pass rate for CDL tests in South Dakota: 66%.
Average pass rate for this test: 73%.
Easy
10 min
Score distribution:
90-100=>0%
80-89=>0%
70-79=>0%
60-69=>0%
<60%=>100%
Avg. first-try score: 56%

Evaluate your understanding of combination vehicles with our South Dakota CDL Combination Vehicles Practice Tests. They are designed by our experts to help aspiring commercial drivers like you understand how to safely operate semi-trucks and tractor-trailers. You will learn jackknife and skid prevention, pre-trip inspections specific to combination vehicles, and commercial driving regulations. The practice test that you’re about to take is based on the official Commercial Driver License Manual (South Dakota CDL Handbook 2025), specifically Section 6 (Combination Vehicles). You must score 80% or higher to pass.

Updated for December 2025, this practice test accurately reflects the latest updates brought by DMV rules or state law. You will always practice with the latest version. However, you should visit the official DMV website for the most up-to-date information. During your training sessions, our helpful AI coach will be ready to assist you. “Officer Frank” can provide hints that nudge you in the right direction without revealing the correct answers. Additionally, he can address any questions you have about combination vehicles.

SD CDL Combination Vehicles Practice Test 4 2025
Commercial Driver's License
Based on the official SD CDL HandbookHandbook‑based (2025) + exam‑taker feedback

Reviewed for legal and handbook accuracy

Steven Litvintchouk

M.S., Chief Educational Researcher (ACES member)

Last verified for accuracy on

Test design and learning experience oversight

Andrei Zakhareuski

Co-founder & CEO, Driving-Tests.org

Questions are created and maintained by the Driving-Tests.org content team following our multi-layer editorial process and updated whenever the South Dakota DMV changes its handbook or website information. Official sources we check: 

About the South Dakota CDL

Some students tend to panic during timed tests. They rush under the pressure of a countdown and make avoidable mistakes that ruin their test performance. This practice test is not timed, so you can finish each training session at your own pace. We provide a safe testing environment to anyone struggling with test anxiety. Train as often as possible, and you’ll naturally become more comfortable with this experience. As long as you’re not in private browsing mode (such as Incognito mode in Google Chrome), your progress will get automatically saved. If you cannot finish an active practice session in one sitting, you can continue it later from the last question you answered.

So what’s it like driving a semi-truck in South Dakota? You will cruise on long, open highways with light traffic as you make deliveries across the state and beyond its borders. Beginner drivers should be cautious of strong crosswinds, severe winter conditions, and frequent encounters with farm equipment on secondary roads. Our Free South Dakota CDL Permit Practice Test will help you master general commercial driving theory and its various aspects. Use it to become a better driver and prepare for real-world driving challenges.

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