Knowledge Test Class A

This license is required for driving any legal combination of vehicles, with a gross combination weight rating of 26,001 pounds or more, provided the GVWR of a trailer exceeds 10,000 pounds To receive this license, applicants must pass a 50-question.. Read More

This license is required for driving any legal combination of vehicles, with a gross combination weight rating of 26,001 pounds or more, provided the GVWR of a trailer exceeds 10,000 pounds To receive this license, applicants must pass a 50-question test. To pass, applicants must answer 40 questions correctly. Each question has four possible answer choices. Test questions come from the West Virginia Commercial Driver’s License Manual. Questions come from chapters covering: Introduction, Driving Safely, Transporting Cargo Safely, Air Brakes (if applicable), Combination, Doubles and Hazardous Materials. Endorsements that may be used with a Class A CDL are: Hazardous materials, Tank, Passenger, HazMat and Tank, Air Brakes and School bus.

Number of Question
Passing Score

1. After an accident, flares should be used with caution because:

Explanation
After an accident, spilled fuel and improper use of flares can result in a fire.

2. Which of the following statements is correct?

Explanation
Missing clamps, spacers, studs, or lugs can be a dangerous defect. Mismatched, bent, or cracked lock rings are not safe to be used. Wheels or rims with welded repairs are not safe.

3. To receive a hazardous materials endorsement, an applicant will be required to supply:

Explanation
To obtain a hazardous materials endorsement, you will be required to submit your fingerprints and undergo a TSA background check.

4. When inspecting engine compartment belts during the vehicle inspection test:

Explanation
When checking the engine compartment during the vehicle inspection test, you must check the power steering, water pump, alternator, and air compressor belts. In addition to cracks and frays, you should check the belts for snugness, allowing up to three-quarters of an inch of play at the center of each belt. If any of these items are not belt-driven, you must identify them and ensure that their components are operating properly, are not damaged or leaking, and are mounted securely.

5. What is Gross Vehicle Weight (GVW)?

Explanation
Gross Vehicle Weight (GVW) is the total weight of a single vehicle and its load of cargo.

6. On newer vehicles, how do you put on the parking brake?

Explanation
On newer vehicles with air brakes, the parking brake is controlled by a yellow, diamond-shaped knob. The knob is pulled out to set the brakes, and pushed in to release them.

7. When entering fog, you should:

Explanation
If at all possible, it is best to avoid driving in fog. However, if you must drive through fog, slow down before reaching it.
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