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The CDL general knowledge test is required to be taken by all CDL applicants. The Vermont 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 Vermont 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 VT 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. You should hold your steering wheel:
with both hands on the same side of the wheel.
firmly with both hands.
firmly with one hand.
2. Two of the most common causes of tire fires are:
Loose lug nuts and duals that touch.
Duals that touch and under-inflated tires.
Driver smoking and bleeding tar.
3. Emergency equipment is:
only required when transporting hazardous materials.
4. Confused drivers may:
stop without warning.
change direction suddenly.
All of the above.
5. The service line is also called:
control line.
cable line.
brake line.
6. Which of the following are key steering system parts?
Lug nuts, rims, tire
Tie rod, drag link, spindle
Leaf spring, torque rod, front axle hanger
7. No matter how small the cargo is, it should have at least:
4 tie-downs.
1 tie-down.
2 tie-downs.
8. Checking your vehicle's suspension system includes checking:
the tires.
the mounting brackets.
the air suspension systems.
9. When preparing to make a right turn, you should NOT turn wide to the left as you start the turn. Why?
It makes the turn harder.
Turning wide to the left can cause your vehicle to tilt.
A following driver may try to pass you on the right.
10. When driving trucks with trailers, drivers should:
make quick lane changes.
push the brake pedal to the floor when braking.
avoid making sudden movements with the steering wheel.
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VT CDL Knowledge Test

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