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Free District of Columbia CDL General Knowledge Test (DC)

  • Perfect for first-time and renewal CDL/CLP applicants, and those adding endorsements
  • Based on 2024 DC commercial driver's license manual
  • Updated for July 2024
Verified by Steven Litvintchouk, M.S., Chief Educational Researcher, Member of ACES. See our detailed commitment to accuracy and quality in our practice tests.
Commercial Driver's License

About this test

Available in EN and ES

Washington, D.C., with an area of just 68 square miles, has a gross domestic product (GDP) of $99 billion per year. That’s more than states 2,100 times its size. Such a large GDP would be completely impossible without commercial drivers to move goods and products in and out of the district -- which is where you come in. You will soon receive or renew your commercial driver license (CDL), and this practice quiz will help make that possible by giving you realistic practice for the CDL written exam. These 50 multiple-choice questions cover crucial information from the Washington, D.C. Commercial Driver License Manual, as well as federal and local laws. You’ll be tested on right-of-way rules, braking and shifting techniques, driving in special weather and road conditions, handling emergency situations, and more. Use the hint provided with each question, and read the explanations carefully to ensure that you’ll be able to answer future questions correctly. Come back and keep practicing until you feel comfortable with the information. Good luck on your CDL exams!

[faq]

District of Columbia CDL License FAQs in 2024

How can you obtain a CDL license?

To obtain a CDL license in the District of Columbia, first acquire a commercial learner’s permit (CLP) by passing the required knowledge tests. Hold the CLP for at least 14 days before taking the skills test. Then, complete CDL training (recommended) and pass the skills test. Ensure you meet all age and medical requirements.

What is the cost of a CDL?

The cost for a CDL in the District of Columbia includes a $78 fee for the CDL, a $10 fee for the knowledge test, and a $10 fee for the CLP. Additional fees may apply for skills testing and medical examinations.

How many questions are on the CDL permit test?

The CDL permit test in the District of Columbia typically consists of 30 to 50 questions, depending on the class of CDL and endorsements. You need to score at least 80% to pass.

What is the minimum age for a CDL?

You must be at least 21 years old to obtain a CDL in the District of Columbia for interstate transportation or to transport hazardous materials. For intrastate transportation, the minimum age is 18.

[/faq]

Enhance your preparation with our comprehensive General Knowledge test collection, tailored to cover all key topics of the CDL exam. For a complete understanding of the expenses involved, check out our guide on CDL license cost, and for a step-by-step guide to getting your CDL, visit our CDL license guide.

What to expect on the actual DC CDL exam

50

questions

40

correct answers to pass

80

passing score

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