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The CDL general knowledge test is required to be taken by all CDL applicants. The Michigan CDL test consists of 50 questions. To pass, you must correctly answer at least 40 questions (80%). The general knowledge test covers the contents of the Michigan CDL Manual. All CDL applicants (Class A, B and C) must study the following sections: Driving Safely, Transporting Cargo Safely, Air Brakes (if you plan to operate vehicles equipped with air brakes), Vehicle Inspection Test, Basic Control Skills Test, Road Test. In addition, the Class A CDL test will include questions based on the Combination Vehicles section. Take this CDL practice test now to prepare for the actual MI general knowledge test! To get your CDL, you must pass both the knowledge and skills tests. CDL knowledge tests include: General Knowledge, Passenger Transport, Air Brakes, Combination Vehicles, Hazardous Materials, Tanker Vehicles, Doubles/Triples, School Bus, Firefighter. Depending on what class of license (A, B or C) and endorsements you need, you must take one or more knowledge tests. A special endorsement is also required to drive certain types of vehicles. The following endorsements may be used with a Class A, B or C CDL: HazMat (H), Tank Vehicles (N), Tank Vehicles Transporting Hazardous Materials (X) and Passenger Transport (P). The School Bus endorsement (S) is only available for Class A or B CDL, and the Doubles/Triples endorsement (T) is only available for Class A driver's licenses.
1. Which of the following is NOT a hazard?
A cardboard box on the road
Work zones
An escape ramp
2. When driving at night you should:
use your high beams when it is safe and legal to do so.
always use low beams.
All of the above.
3. When feeling fatigued you should:
stop and rest.
drink a cup of coffee.
continue driving.
4. Hazardous materials placards are:
Signs put on the outside of a vehicle that identify the hazard class and weight of the vehicle.
Signs put on the outside of a vehicle to warn others of hazardous materials.
Signs put on top of a vehicle that identify the hazard class of the cargo.
5. What is Gross Vehicle Weight Rating?
The value specified by the manufacturer as the loaded weight of a single vehicle
The total weight of a single vehicle, including its load
The total weight of a combination of vehicles including the load
6. When inspecting your vehicle for suspension system defects, look for:
cracked or broken spring hangers.
leaking shock absorbers.
All of the above.
7. When starting your vehicle, the warning lights and buzzers:
should stay on for 15-20 seconds.
should stay on until you manually turn them off.
should go out right away.
8. Combination vehicles _________ than single CMVs.
are much easier to drive
require more driving skill
are safer in bad weather
9. Retarders:
help to increase brake pressure.
improve traction.
can be noisy and may not be permitted everywhere.
10. When going down long, steep downgrades:
your speed will decrease.
your speed will increase.
your speed will stay about the same.
 
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MI CDL Knowledge Test

Number of questions: 50
Correct answers to pass:40
Passing score:80%
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