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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. Blocking _______________ to keep it from sliding.
goes from the upper part of the cargo to the floor
is used in the front, back, and/or sides of a piece of cargo
is used only in the back of a piece of cargo
None of the above.
2. When the road is slippery, you should:
reduce your speed.
slightly increase your speed to reach the next stop.
release the accelerator and push in the clutch.
apply the brakes, then let the wheels turn freely.
3. Emergency lines are often coded with the color ___ to keep from getting them mixed up with the service line.
4. On front tires, tread should be at least:
4/16 inch
4/32 inch
2/32 inch
1/16 inch
5. A high center of gravity means:
you'll have better traction.
a rollover is less likely.
you are more likely to tip over.
the spring brakes will come fully on.
6. When preparing to make a right turn, you should NOT turn wide to the left as you start the turn. Why?
Turning wide to the left can cause your vehicle to tilt.
It makes the turn harder.
A following driver may try to pass you on the right.
A following driver may try to pass you on the right.
7. Dry bulk tanks require special care. Why?
All of the above.
They have a high center of gravity.
The load can shift.
None of the above.
8. Which of the following can cause vehicle fires?
Improperly sealed cargo
Improper fueling
Short circuits and loose connections
All of the above.
9. An item that is 15 feet long placed on a flatbed trailer should have at least:
3 tie-downs.
15 tie-downs.
1 tie-down.
2 tie-downs.
10. An advantage of going right instead of left around an obstacle is that:
There is no real advantage.
No one is likely to be driving on the shoulder, but someone may be passing you on the left.
By turning right, you will force other drivers into an opposing traffic lane.
Turning right comes more natural in emergency situations.
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MT CDL Practice Test

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