The Minnesota CDL general knowledge test is required for commercial-driver applicants, with additional exams based on the vehicle and endorsements. Minnesota Department of Public Safety (DPS), Driver and Vehicle Services (DVS) administers commercial licensing; Federal Motor Carrier Safety Administration (FMCSA) rules require at least 80% correct on each knowledge test.
Last verified: November 8, 2026
Build your Minnesota CDL knowledge foundation. Start general-knowledge practice, then identify the other examinations your intended vehicle requires.
Why does every Minnesota CDL study plan begin with general knowledge?
Minnesota requires the commercial general knowledge test as a foundation for obtaining a CDL. The DVS Commercial Driver’s License Manual identifies general knowledge for all applicants and then separates vehicle-specific tests. A bus applicant and a tractor-trailer applicant share that foundation but do not have identical examination plans.
Begin by identifying the work and vehicle you intend to operate. Note whether it is a combination, has air brakes, carries passengers, or carries a regulated load. Bring that description to the licensing discussion instead of asking only for “a truck permit.” A training package should match the intended class and endorsements, not simply offer the largest number of practice questions.
Which extra examinations belong beside general knowledge?
The Minnesota CDL manual assigns additional knowledge examinations according to equipment and operation. The DVS knowledge-test overview includes combination vehicles, air brakes, passenger transport, school buses, tank vehicles, hazardous materials, and doubles or triples. Passing general knowledge alone does not satisfy those separate subjects.
| Intended operation | Additional study focus |
|---|---|
| Combination-vehicle route, commonly Class A | Coupling, combination operation, and equipment-specific subjects |
| Air-braked vehicle in the relevant class | Air-brake systems and testing |
| Passenger bus | Passenger transport; school-bus subjects if applicable |
| Tank or hazardous-material operation | Load-specific knowledge and endorsement requirements |
| Double or triple trailers | Additional combination handling and inspection subjects |
Air brakes are an equipment and restriction issue rather than a substitute license class. Likewise, choosing Class B does not answer whether passenger or school-bus testing applies. Have the provider explain each item on your examination list. Keep the general-knowledge study session separate from a specialized session so a weakness in one subject remains visible.
How are Minnesota CDL knowledge tests passed?
A Minnesota CDL applicant must meet the passing requirement on each required knowledge examination individually. FMCSA’s 49 CFR 383.135 sets a minimum of 80% correct; a high general-knowledge result does not compensate for a failed air-brake or combination test. Track progress by subject rather than averaging all practice results together.
Our Minnesota CDL practice collection uses 50-question tests with a 40-correct practice target and offers 20 tests covering 178 unique questions. Use those product features to identify topics for review. After a mistake, explain the unsafe condition and the action that corrects it before selecting another set. The commercial manual’s chapter questions can help organize that review.
What should you expect if a Minnesota knowledge attempt is unsuccessful?
Minnesota limits any knowledge examination to 1 attempt per day with at least 1 calendar day between tests, under Rule 7410.4780. Plan a return visit rather than expecting another attempt at a different office later that afternoon. The waiting rule is separate from the availability of the testing service you need.
The Minnesota examination-fee statute charges $10 for a third and subsequent department knowledge examination after 2 consecutive failures on that subject. Ask DVS which examination history and fees apply to your transaction. Identify the actual missing test before arranging travel; a general-knowledge retake and an endorsement appointment may require different preparation.
How does an inspection question test general-knowledge judgment?
Minnesota commercial-driver preparation includes recognizing defects that make a vehicle unsafe, rather than merely naming its components. The DVS CDL manual’s steering-system discussion identifies more than 10 degrees of steering-wheel play as a control concern. Connect the measurement with the loss of precise steering it can indicate.
Steering wheel play should be no more than:
- A. 10 degrees.
- B. 25 degrees.
- C. 50 degrees.
- D. 75 degrees.
Show answer
A. 10 degrees. Excessive free movement can make steering difficult. Inspection should identify the defect before the vehicle is driven into traffic.
Build a review list from the errors: steering, tires, brakes, space management, or cargo. A memorized inspection term is less useful if you cannot explain what failure would mean on the road. Practice questions support that understanding, while actual inspection training develops the physical checking skills required later.
What remains after the required knowledge tests?
Minnesota commercial licensing continues beyond knowledge testing to permit eligibility, applicable training, and skills evaluation. The DVS CDL manual describes 3 skills segments: vehicle inspection, basic control, and on-road driving. Each segment has its own purpose and is taken in the required sequence.
Confirm the remaining application and training requirements before making work commitments that assume a completed CDL. This article concerns commercial licensing; the Minnesota car road-test checklist describes a different examination. Keep the commercial study route organized through the Minnesota CDL hub, and review ordinary Minnesota yielding duties alongside vehicle-specific material.
Key takeaways
- Minnesota CDL knowledge examinations require at least 80% correct individually under FMCSA passing rules.
- Minnesota permits only 1 knowledge attempt daily under Rule 7410.4780.
- Minnesota CDL skills testing includes 3 segments under the DVS CDL manual.
Frequently asked questions
Can a failed combination test still lead to a Class A permit?
Minnesota cannot issue a Group A CLP or CDL when the applicant fails the combination-vehicle knowledge portion, under 49 CFR 383.135.
Does hazardous-material testing include a background check?
Minnesota hazardous-material endorsement applicants also face Transportation Security Administration requirements. The DVS manual identifies the TSA background check as an additional requirement.
Should I memorize school-bus questions for every commercial vehicle?
Minnesota assigns school-bus testing to the school-bus route. Use the manual’s study chart to match specialized material to the intended operation.
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