Free Michigan DMV CDL — General Knowledge Practice Test 2026
The Michigan CDL — General Knowledge knowledge test has 50 questions, and you need 40 correct (80%) to pass. Practice free with questions written from the official Michigan driver handbook — every one has a clear explanation, and you can retake as often as you like with no sign-up.
Content reviewed against official driver handbooks · August 12, 2026
What's on the Michigan written test
The Michigan CDL — General Knowledge knowledge test has 50 questions; you need 40 correct (80%) to pass.
Based on the official Michigan exam format — always confirm current details with your state DMV.
Practice by topic
Focus on one area at a time — each topic has its own set of Michigan practice questions.
Learn the shapes, colors, and meanings of regulatory, warning, and guide signs — from stop and yield to construction and school-zone signs.
Speed limits, turning and signaling rules, headlight and seat-belt requirements, and the everyday laws every driver must follow.
How to read traffic signals, lane lines, and pavement markings — including yellow and white lines, arrows, and flashing lights.
Who goes first at intersections, four-way stops, roundabouts, and crosswalks, and how to yield to pedestrians and emergency vehicles.
Following distance, scanning, blind spots, using your lights, and the habits that prevent crashes and keep you in control.
Driving safely around motorcycles, bicycles, large trucks, pedestrians, and school buses — and knowing who has the right of way.
Blood alcohol limits, zero-tolerance and implied-consent laws, and how alcohol and drugs — legal or not — affect your driving.
Legal and illegal parking, colored curbs, distances from hydrants and crossings, and how to park safely on hills.
Choosing a safe speed, keeping a space cushion, adjusting for weather and traffic, and understanding stopping distance.
What to do when things go wrong — brake failure, tire blowouts, skids, and stalling on railroad tracks.
The point system, license suspension, provisional-license rules, insurance requirements, and other licensing basics.
How to pass the first time
- Read the official Michigan driver handbook at least once before test day.
- Practice by topic to find your weak spots, then fix them.
- Take full-length practice tests until you pass comfortably every time.
- Read every explanation — understanding beats memorizing.
Michigan CDL — General Knowledge test — frequently asked questions
How many questions are on the Michigan CDL — General Knowledge test?
The Michigan CDL — General Knowledge knowledge test has 50 questions, and you need 40 correct (80%) to pass. Our practice tests mirror that format.
How many questions can I miss on the Michigan CDL — General Knowledge test?
You can miss up to 10 of the 50 questions and still pass — you need 40 correct, which is 80%.
Can I retake the practice test?
Yes — practice as often as you like, completely free. The questions and answer choices are shuffled each time.
Can I take the Michigan practice test in Spanish?
Yes. Every question here is available in English and Spanish — switch languages anytime. Many states also offer the real knowledge test in languages other than English; confirm what Michigan offers with your DMV.
Can I practice on my phone?
Yes. The practice tests work in any mobile or desktop browser — no app or sign-up needed — so you can study anywhere.
Are these the real DMV test questions?
No. Our questions are original, written from the current official Michigan driver handbook to match the real test's topics and style. We are not affiliated with any DMV or government agency.
What's the best way to study?
Read the Michigan driver handbook, practice by topic to target weak areas, and finish with full-length tests until you consistently pass.
Other Michigan practice tests
Take the CDL — General Knowledge test in another state
Every Michigan question is written from the official Michigan driver handbook and checked against its current edition. DMV Test Free is a free, independent study resource — not affiliated with any DMV or government agency. About DMV Test Free
Michigan CDL — General Knowledge questions with answers
20 sample questions from the Michigan CDL — General Knowledge question bank — each with the correct answer, a short explanation, and the section of the official handbook it comes from.
Show all 20 questions with answers
1. In Michigan, a person may drive a CMV within the state (intrastate) beginning at what age?
Correct answer: 18
Intrastate CMV driving in Michigan is permitted starting at 18, except when hauling placardable hazardous materials, which requires age 21.
Source: Michigan CDL Manual, Section 1 (How old must I be)
2. How is the stab braking method performed?
Correct answer: Apply the brakes fully, release when the wheels lock, then reapply once they roll again
Apply the brakes fully, release them when the wheels lock, and reapply fully once the wheels begin to roll again.
Source: Michigan CDL Manual, Section 2.17.2 (Stab braking)
3. Doubling your speed from 20 mph up to 40 mph increases braking distance by roughly what factor?
Correct answer: Four times as long
Doubling speed from 20 to 40 mph makes both the impact and the braking distance about four times greater.
Source: Michigan CDL Manual, Section 2.6.1 (Effect of speed on stopping distance)
4. In very hot weather, how often should you inspect your tires?
Correct answer: Every two hours, or after each 100 miles
In very hot weather, inspect the tires at each stop about every 100 miles, or at least every two hours.
Source: Michigan CDL Manual, Section 2.14.1 (Tires)
5. Being employed mainly to operate a vehicle or combination rated at what weight requires a Michigan chauffeur's license?
Correct answer: 10,000 pounds
Being employed principally to drive a vehicle or combination with a weight rating of 10,000 pounds or more requires a chauffeur's license.
Source: Michigan CDL Manual, Section 1 (Do I need a chauffeur's license)
6. Operating a CMV with an alcohol concentration of how much counts as a major violation?
Correct answer: 0.04 or greater
Operating a CMV at a 0.04 alcohol concentration or higher is classified as a major traffic violation.
Source: Michigan CDL Manual, Section 1 (Major traffic violations)
7. If a hill or curve keeps drivers from seeing your stopped vehicle within 500 feet, what should you do with the rear warning device?
Correct answer: Move it farther back down the road so approaching drivers get a warning
Move the rearmost triangle farther back beyond the obstruction so approaching drivers receive a warning in time.
Source: Michigan CDL Manual, Section 2.5.2 (When parked at the side of the road)
8. What does the crossbuck sign at a railroad crossing require of you?
Correct answer: Yield the right-of-way to any train
The crossbuck marks the grade crossing; at it you must give any train the right-of-way.
Source: Michigan CDL Manual, Section 2.15.2 (Cross-buck signs)
9. At a crossing with gates and flashing lights, when may you proceed?
Correct answer: Once the gates rise fully and the flashing lights go dark
Wait until the gates have fully raised and the lights have stopped flashing, then cross when it is safe.
Source: Michigan CDL Manual, Section 2.15.2 (Gates)
10. How do you test that the parking brake holds?
Correct answer: In a low gear, gently pull forward against the set parking brake
With the parking brake set and the vehicle in a low gear, gently pull forward; the brake should hold the vehicle.
Source: Michigan CDL Manual, Section 2.1.5 (Test parking brakes)
11. At dawn, dusk, or in rain or snow, how do you make your vehicle easier for others to see?
Correct answer: Turn on your headlights, using low beams
Turn on your headlights using the low beams; identification or clearance lights alone are not enough.
Source: Michigan CDL Manual, Section 2.5.2 (When it's hard to see)
12. What is the minimum age to drive a commercial motor vehicle across state lines?
Correct answer: 21
You must be 21 to operate a CMV in interstate commerce. Within Michigan, intrastate driving is allowed at 18.
Source: Michigan CDL Manual, Section 1 (How old must I be)
13. How do you correct a drive-wheel braking skid?
Correct answer: Stop braking to let the rear wheels roll, then counter-steer
Stop braking so the rear wheels can roll again, then counter-steer to keep the vehicle from spinning the other way.
Source: Michigan CDL Manual, Section 2.19.2 (Correcting a drive-wheel braking skid)
14. How does the following-distance rule change at speeds above 40 mph?
Correct answer: You add one second for safety
Above 40 mph you add one more second to the following distance figured from vehicle length.
Source: Michigan CDL Manual, Section 2.7.1 (Space ahead)
15. What is the only reliable cure when you notice signs of fatigue while driving?
Correct answer: Stopping to sleep or take a short nap
Only sleep truly cures fatigue; stop driving and rest or take a short nap. Coffee or fresh air only helps briefly.
Source: Michigan CDL Manual, Section 2.11.2 (Driver factors)
16. Farmers may operate certain vehicles without a CDL within what distance of their farm?
Correct answer: Within a 150-mile radius
The farmer exemption applies within a 150-mile radius of the farm, though endorsements or a CDL may still be needed for heavier combinations or hazmat.
Source: Michigan CDL Manual, Section 1 (CDL exemptions)
17. Refusing a chemical test under implied consent results in what for a first offense?
Correct answer: A one-year CDL suspension, or three years if transporting hazmat
A first refusal suspends the CDL for one year, or three years if hazardous materials were being transported.
Source: Michigan CDL Manual, Section 1 (Refusal to submit to a chemical test)
18. When stopped on a one-way or divided highway, where should the three warning triangles be placed?
Correct answer: At 10 feet, then 100 feet, then 200 feet in the direction of oncoming traffic
On a one-way or divided highway, set the triangles toward approaching traffic at roughly 10, 100, and 200 feet.
Source: Michigan CDL Manual, Section 2.5.2 (When parked at the side of the road)
19. When a downgrade posts a 'Maximum Safe Speed' sign, what should you do?
Correct answer: Never exceed the speed shown
You must never exceed the posted maximum safe speed, regardless of how light your load is.
Source: Michigan CDL Manual, Section 2.16.1 (Select a safe speed)
20. At a railroad grade crossing, who has the right-of-way?
Correct answer: The train, always
A train always has the right-of-way at a crossing; you must yield to it.
Source: Michigan CDL Manual, Section 2.15 (Railroad-highway crossings)