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Key Facts: Michigan CDL Combination Exam
20
Michigan Group A Combination Vehicle knowledge-test questions
Michigan SOS Applying for a CDL
80%
Minimum Michigan CDL knowledge-test passing score
Michigan SOS Applying for a CDL; 49 CFR 383.135
14 days
Minimum CLP holding period before Michigan CDL skills testing
Michigan SOS Applying for a CDL
1 day
Michigan CDL knowledge-test retake wait after a failed attempt
Michigan SOS Applying for a CDL
26,001 lb
FMCSA Group A GCWR threshold when the towed unit is over 10,000 lb GVWR
49 CFR 383.91
Michigan Group A/Class A applicants must pass the 20-question Combination Vehicle knowledge test in addition to the 70-question General Knowledge test. Michigan SOS requires at least 80 percent on each CDL knowledge test, a one-day wait to retake a failed knowledge-test category, and at least 14 days with a CLP before skills testing. Study the Michigan CDL Manual and FMCSA Section 6 topics: fifth wheel and kingpin coupling, tug and visual checks, air/electric lines, landing gear, trailer brakes, off-tracking, rollover, backing, trailer skids, jackknife recovery, and safe speed and space management.
Sample Michigan CDL Combination Practice Questions
Try these sample questions to test your Michigan CDL Combination exam readiness. Each question includes a detailed explanation. Start the interactive quiz above for the full 200+ question experience with AI tutoring.
1For a Michigan Group A CDL applicant, which knowledge test is listed in addition to General Knowledge?
2How many questions does Michigan SOS list for the Group A Combination Vehicle knowledge test?
3What minimum score must you earn on a Michigan CDL knowledge test?
4If you fail a Michigan CDL knowledge test, when may you retake that category?
5Before a Michigan CDL skills test, how long must the CLP generally be held?
6Under FMCSA Group A rules, the towed unit must exceed what GVWR when GCWR is 26,001 pounds or more?
7Where does Michigan SOS say CDL knowledge tests are administered?
8Which official study source should Michigan combination applicants start with?
9Which failed test result prevents issuance of a Group A CLP or CDL under federal rules?
10What Michigan fee is listed for each standard CDL group designation or endorsement?
About the Michigan CDL Combination Exam
The Michigan CDL Combination Vehicles Test is the written knowledge test for Group A/Class A applicants who need to operate qualifying tractor-trailer and other combination vehicles. Michigan SOS lists Group A knowledge testing as 70 General Knowledge questions plus a 20-question Combination Vehicle test and requires at least 80 percent to pass each CDL knowledge test. The tested knowledge aligns with the Michigan Commercial Driver License Manual, FMCSA CDL Manual Section 6, and Part 383 standards: combination inspection, fifth wheel and kingpin coupling, air and electrical lines, landing gear, trailer brakes, off-tracking, rollover prevention, safe turns, backing, trailer skids, jackknife recovery, speed, and space management.
Assessment
Michigan SOS lists Group A as 70 General Knowledge questions plus a 20-question Combination Vehicle test. Air Brakes and endorsements are separate knowledge tests when applicable.
Time Limit
Computer-based written testing at a Michigan Secretary of State office; no separate public Combination Vehicle time limit found in official Michigan SOS sources
Passing Score
80% minimum on each Michigan CDL knowledge test
Exam Fee
$25 first-time standard CDL; $5 each group designation/endorsement; $9 corrected standard license after skills test; third-party skills-test fees vary (Michigan Department of State, Secretary of State (SOS))
Michigan CDL Combination Exam Content Outline
Driving Combination Vehicles Safely
Rollover risk, high center of gravity, steering response, rearward amplification, off-tracking, wide turns, low-clearance crossings, backing, trailer swing, and space management.
Combination Vehicle Air Brakes
Trailer hand valve, tractor protection valve, trailer air supply control, service and emergency lines, glad hands, crossed-line faults, trailer ABS, leaks, and trailer brake tests.
Coupling and Uncoupling
Fifth wheel plate and jaws, kingpin, trailer height, high coupling, tug test, visual inspection, air/electrical line connection, landing gear, chocks, and safe release sequence.
Inspecting Combination Vehicles
Coupling area, trailer frame, suspension, brakes, tires, lights, reflectors, landing gear, cargo doors, load security, and post-coupling final checks.
Michigan CDL and FMCSA Rules
Michigan Group A question counts, 80% passing score, one-day knowledge retake wait, CLP 14-day holding period, SOS fees, approved skills-test providers, FMCSA Group A vehicle rules, and federal 80% passing standard.
How to Pass the Michigan CDL Combination Exam
What You Need to Know
- Passing score: 80% minimum on each Michigan CDL knowledge test
- Assessment: Michigan SOS lists Group A as 70 General Knowledge questions plus a 20-question Combination Vehicle test. Air Brakes and endorsements are separate knowledge tests when applicable.
- Time limit: Computer-based written testing at a Michigan Secretary of State office; no separate public Combination Vehicle time limit found in official Michigan SOS sources
- Exam fee: $25 first-time standard CDL; $5 each group designation/endorsement; $9 corrected standard license after skills test; third-party skills-test fees vary
Keys to Passing
- Complete 500+ practice questions
- Score 80%+ consistently before scheduling
- Focus on highest-weighted sections
- Use our AI tutor for tough concepts
Michigan CDL Combination Study Tips from Top Performers
Frequently Asked Questions
Who needs the Michigan CDL Combination Vehicles test?
Michigan SOS lists Group A applicants as taking General Knowledge plus the 20-question Combination Vehicle knowledge test. This applies to drivers seeking qualifying Class A combination-vehicle privileges unless an official transfer or waiver rule applies.
What score do I need to pass?
Michigan SOS requires a minimum score of 80 percent on each CDL knowledge test. FMCSA also requires at least 80 percent correct under 49 CFR 383.135.
How many questions are on the Michigan combination test?
Michigan SOS lists Group A as 70 General Knowledge questions plus a 20-question Combination Vehicle test. This practice bank includes 100 study questions to cover the tested concepts broadly.
What topics are on the Michigan combination test?
Study combination inspection, fifth wheel and kingpin coupling, trailer height, tug and visual checks, air and electrical lines, landing gear, trailer brake controls, off-tracking, rollover, safe turns, backing, trailer skids, jackknife recovery, and speed/space management.
Can I retake a failed Michigan CDL knowledge test right away?
No. Michigan SOS says an applicant who fails a CDL knowledge test must wait one day before retaking that testing category, including later retests.
How much does the Michigan CDL combination test cost?
Michigan publishes CDL and group/endorsement fees rather than a separate Combination Vehicle-only fee. The SOS fee page lists a $25 first-time standard CDL fee and $5 for each standard CDL group designation or endorsement; skills-test fees vary by approved Driver Testing Business.