Question 1
____ identical placards must be placed on a vehicle transporting hazardous materials.
Correct Answer:
Four
Question 2
When refueling a vehicle transporting hazardous materials:
Correct Answer:
The engine should be turned off.
Question 3
If a shipping paper describes both hazardous and non-hazardous materials, the hazardous materials may need to be:
Correct Answer:
Highlighted in a contrasting color.
Question 4
If a shipping paper has both hazardous and non-hazardous materials, the hazardous materials should be:
Correct Answer:
Highlighted in a contrasting color.
Question 5
In addition to reading the manual, the best way to learn about transporting hazardous materials is to:
Correct Answer:
Attend hazardous materials training courses.
Question 1 of 30
Exam overview

About this Exam

The Tennessee Commercial Driver's License (CDL) exam is a comprehensive evaluation designed for individuals aspiring to operate large, heavy, or specialized vehicles within the state. This certification validates that a driver possesses the necessary knowledge and skills to navigate commercial motor vehicles safely and adhere to state and federal regulations. It is essential for careers in trucking, transportation, and logistics, opening doors to a wide range of job opportunities.

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Additional Information

What the Course Entails and Exam Details

The core CDL "course" (which most candidates prepare for through self-study of the CDL Manual and practice tests) covers a broad spectrum of vital subjects. These include:

  • General Knowledge: Covering fundamental safe driving practices, vehicle systems, basic control skills, and inspections.

  • Air Brakes: If the vehicle is equipped, this section tests understanding of the air brake system and its safe operation.

  • Combination Vehicles: Essential for drivers of tractor-trailers, covering coupling, uncoupling, and specific handling techniques.

  • Endorsements: Candidates can pursue additional knowledge sections like Hazardous Materials (Hazmat), Passenger Transport, Tanker Vehicles, and Double/Triple Trailers, which expand their driving privileges.

Preparation for these sections focuses heavily on understanding the current Tennessee Commercial Driver License Manual.


What to Expect in the Final Exam

The final CDL written knowledge exams are administered as computer-based, multiple-choice tests at an authorized testing center. Each sub-test has its own number of questions and time considerations, though limits are generally reasonable. A passing score of 80% or higher is typically required on each knowledge test. Upon passing the written exams, a Commercial Driver License Permit (CLP) is issued, allowing for practical skills training and testing behind the wheel. The real-world nature of these tests means they assess a true understanding of safe commercial vehicle operations.


How to Study and Exam Centers

The most effective approach to studying for the Tennessee CDL Knowledge Tests involves a combination of diligent study of the official Tennessee Commercial Driver License Manual and extensive use of reliable online practice exams.

  • Official Manual: This is the primary resource. Study it thoroughly, paying attention to diagrams, rules, and procedures.

  • Practice Tests: Utilize reputable Tennessee-specific CDL practice test websites and apps. Repeatedly taking these tests under exam conditions will reinforce knowledge, identify weak areas, and build confidence. Many candidates aim to pass practice tests with a score well above the requirement.

  • Tennessee Exam Centers: The actual knowledge tests are administered at authorized Tennessee Department of Safety and Homeland Security Driver Testing Centers throughout the state. It is advisable to verify specific testing hours and locations in advance on the official TDOSHS website. Practice exams can be taken anywhere with an internet connection, allowing for flexible study.


Job Opportunities from the Course

Successfully passing the Tennessee CDL exams unlocks numerous career paths in a high-demand industry. Graduates are qualified for positions such as:

  • Commercial Truck Driver (Over-the-Road, Regional, and Local routes)

  • Owner-Operator Truck Driver

  • Professional Bus Driver (School districts, transit authorities, and private charters)

  • Delivery Driver for large transportation companies

  • Specialized Drivers (e.g., Hazmat haulers, fuel delivery)

  • Construction Equipment Transport Driver

  • Fleet Management and Logistics positions

A CDL is more than a license; it's a key to a stable and essential career.


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