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The CDL general knowledge test is required to be taken by all CDL applicants. The Montana 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 Montana 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 MT 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. The parking brake should be tested while the vehicle is:
moving back slowly.
moving forward slowly.
moving at highway speeds.
None of the above.
2. Drivers should check and adjust their mirrors:
before starting a trip.
while driving.
after a trip.
All of the above.
3. Placards must be:
turned upright on a point.
in a diamond shape.
readable from all 4 directions.
All of the above.
4. The definition of Gross Vehicle Weight is:
Total weight of a single vehicle minus fuel
Total weight of a single vehicle + cargo
Axle weight + cargo weight
Total weight of cargo
5. The 2 special conditions where you should downshift are:
While going down hill and after finishing a curve.
Before starting up a hill and after finishing a curve.
Before starting up a hill and before finishing a curve.
Before starting down a hill and before entering a curve.
6. You must have at least ________ tread depth on tires other than front tires.
2/32 inch
4/32 inch
4/16 inch
8/32 inch
7. Letting air out of hot tires:
will have no effect on the tires.
will cool the tires down.
should not be done, because the pressure will be too low when the tires cool off.
will help relieve the extra pressure.
8. To stay alert and safe while driving, you should:
drive at night, if possible.
always drive alone, if possible.
avoid any drug that hides fatigue.
drink coffee if you get drowsy.
9. Axle weight is:
the value specified by the manufacturer as the loaded weight of one axle.
the maximum safe weight your tires can carry at a specified pressure.
the weight transmitted to the ground by one axle or one set of axles.
the weight of all the axles added together.
10. Which of these is FALSE? The spare tire must:
be properly inflated.
be the proper size.
be approved by the truck manufacturer.
not be damaged.
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MT CDL Practice Test

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