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.. 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. Test questions come from the Indiana Commercial Driver License Manual. To pass, applicants must answer 40 questions correctly. Each question has four possible answer choices. Questions come from chapters covering: Introduction, Driving Safely, Transporting Cargo Safely, Air Brakes (if applicable), Combination Vehicles, Pre-Trip Vehicle Inspection Test, Basic Vehicle Control Skills Test and On-Road Driving. Endorsements that may be used with a Class A CDL are: Hazardous materials, Tank, Passenger, Doubles/Triples, HazMat, Tank, Air Brakes and School bus.

Number of Question
Passing Score

8. During the vehicle inspection portion of the skills test, an applicant will be required to:

Explanation
During the vehicle inspection skills test, you will need to explain to the examiner what you are inspecting and why.

9. 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.

10. Once cargo is secured:

Explanation
The securement of cargo must be checked before beginning a trip, within the first 50 miles of a trip, and then again every three hours or 150 miles.

11. What is the number one cause of death and injury in work zones?

Explanation
Speeding traffic is the main cause of death and injury in work zones. Drive with special caution when traveling near road workers.

12. If driving a vehicle with a manual transmission, you can prevent your vehicle from rolling backward when starting from a stop by:

Explanation
To prevent rolling backward when starting from a stop, you should partly engage the clutch before removing your foot from the brake. Apply the parking brake whenever necessary to prevent your vehicle from rolling back.

13. Which of the following determines your blood alcohol concentration (BAC)?

Explanation
The three main factors that determine a person's blood alcohol concentration (BAC) are how much alcohol was consumed; how fast it was consumed; and the person's body weight. The only thing that can lower a person's BAC is waiting for the alcohol to leave their system naturally.

14. When inspecting cargo, the driver should do all of the following, except:

Explanation
Cargo should be inspected by a driver to ensure that it is properly secured, balanced, and not exceeding weight limits.
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