CDL Practice Test : Free Exam Questions & Study Guide
Passing the CDL exam is your gateway to a rewarding career in the transportation industry. Our comprehensive guide and free practice tests cover essential topics for the Commercial Driver's License, including General Knowledge, Air Brakes, and specialized endorsements.
Whether you are aiming for a Class A CDL or Class B CDL, preparing with our CDL practice test questions is the most effective way to ensure success. Start your journey to becoming a professional CDL driver today with our expert resources and updated exam materials.
Note: The exact number of questions and fees for the CDL license may vary slightly by state. Always verify with your local DMV for specific CDL class cost and testing requirements.
Free CDL Practice Test Questions
Prepare for your CDL license with our comprehensive practice quizzes. These tests cover General Knowledge, Air Brakes, Combination Vehicles, and various endorsements to help you ace the CDL test.
CDL Flashcards
Quick review for key Commercial Driver's License concepts
CDL Exam Study Guide
Our CDL study guide breaks down everything you need to know about the CDL license process. From registration to salary expectations, explore the tabs below for detailed information on how to become a professional driver.
| What is the CDL exam? | The CDL exam is a series of tests required to operate commercial motor vehicles in the United States. It includes a general knowledge written test and a skills test. |
| Who needs a CDL license? | Anyone driving a vehicle with a GVWR of 26,001 lbs or more, carrying hazardous materials, or transporting 16+ passengers needs a CDL license. |
| What are the CDL classes? | There are three classes: Class A CDL for combination vehicles, Class B CDL for single heavy vehicles, and Class C for smaller transport vehicles. |
| What is a CLP? | A CLP is a Commercial Learner's Permit, which allows you to practice driving a commercial vehicle under the supervision of a licensed CDL driver. |
| How many questions are on the CDL test? | The CDL permit test for general knowledge typically has 50 questions. Endorsement tests like air brakes usually have 20-25 questions each. |
| What is the passing score for CDL? | You must score at least 80% to pass any section of the CDL exam. For the general knowledge test, that means answering 40 out of 50 correctly. |
| Is the CDL test timed? | Most states do not put a strict time limit on the written CDL test, but you should expect to spend 60-90 minutes at the DMV. |
| What endorsements are available? | Common endorsements include Air Brakes (L), Combination Vehicles (N), Tanker (N), Doubles/Triples (T), Hazmat (H), and Passenger (P). |
| How do I register for the CDL exam? | You must register through your state's DMV or BMV. Visit their website to schedule your CDL permit test appointment. |
| What documents do I need? | You typically need a valid driver's license, proof of citizenship/residency, a Medical Examiner's Certificate (DOT card), and your SSN. |
| How much does the CDL test cost? | The CDL license cost varies by state but generally ranges from $50 to $150 for the permit and license fees combined. |
| Do I need to go to CDL school? | Yes, under ELDT regulations, most new drivers must complete an approved CDL training program before taking the skills test. |
| When do I get my CDL results? | You get your written CDL test results immediately at the DMV computer kiosk. Skills test results are usually processed the same day. |
| Can I retake the CDL exam? | Yes, if you fail, you can retake the CDL exam. Most states require a waiting period (e.g., 24 hours) and a retesting fee. |
| How long is a CDL valid? | A standard CDL license is typically valid for 5 to 8 years, depending on your state of residence. |
| How do I check my CDL status? | You can check your CDL status online through your state's DMV portal or by contacting the driver licensing agency directly. |
| What is the average CDL driver salary? | The average CDL driver earns between $50,000 and $75,000 annually, with experienced drivers and specialized haulers earning more. |
| Do specialized endorsements increase pay? | Yes, holding endorsements like Hazmat or Tanker often leads to higher-paying CDL jobs. |
| What is the starting pay for new drivers? | Entry-level CDL jobs typically pay around $45,000 to $55,000 per year, often with signing bonuses. |
| Is there a demand for CDL drivers? | Yes, there is a high demand for qualified CDL truck drivers across the country, ensuring strong job security. |
CDL Test Format and Requirements
Understanding the CDL exam structure is crucial for success. The test is divided into knowledge and skills sections. Below are the key components of the CDL test you will encounter.
The foundation of the CDL exam covering safe driving, cargo, and inspection.
- Topics: Vehicle control, hazards, accidents
- Questions: 50 Multiple Choice
Required for any vehicle equipped with air brakes. A critical CDL license component.
- Topics: Air systems, braking usage, safety
- Questions: 25 Multiple Choice
Mandatory for Class A CDL drivers operating tractor-trailers.
- Topics: Driving combinations, antilock brakes
- Questions: 20 Multiple Choice
For transporting hazardous materials. Requires background check for CDL hazmat.
- Topics: Classes, labeling, emergencies
- Questions: 30 Multiple Choice
Required to drive tank vehicles. Focuses on liquid surge and stability.
- Topics: Tank vehicle safety, handling
- Questions: 20 Multiple Choice
For driving buses or vans carrying 16+ people. Key for CDL class c.
- Topics: Passenger management, inspection
- Questions: 20 Multiple Choice
Review the CDL manual for your specific state thoroughly. While the core questions are national, some administrative details may vary. Focus heavily on the Air Brakes section if applying for a Class A or B CDL license, as this is a common stumbling block.
CDL Score Calculator
Calculate your potential CDL exam score. The standard passing requirement is 80%.
CDL Salary Information
Average salaries for CDL drivers vary by experience and license class.
| Position | Annual Salary | Monthly Income | Experience |
|---|---|---|---|
| Student/Trainee | $40,000 | ~$3,300 | 0-1 Year |
| Regional Driver | $62,000 | ~$5,100 | 1-3 Years |
| OTR Driver | $75,000 | ~$6,250 | 2+ Years |
| Specialized (Hazmat) | $85,000 | ~$7,000 | 3+ Years |
| Owner Operator | $150,000+ | Varies | 5+ Years |
Earning specialized endorsements like Hazmat, Tanker, or Doubles/Triples is the fastest way to increase your CDL salary. Many CDL jobs offer bonuses for these qualifications.
How to Become a CDL Driver
Following the correct steps is essential to obtaining your CDL license efficiently.
- Check Requirements - Verify age, residency, and medical eligibility for a CDL license.
- Get CLP - Pass general knowledge tests to get your Commercial Learner's Permit.
- Complete ELDT - Enrol in registered CDL schools for Entry-Level Driver Training.
- Practice Driving - Get behind-the-wheel experience with an instructor.
- Schedule Exam - Book your skills test with the DMV or third-party tester.
- Pass Skills Test - Complete pre-trip inspection, backing, and road test.
- Get Licensed - Pay final fees and receive your Class A CDL or B.
CDL Certification Costs
Budgeting for your CDL license cost is important. Prices vary by state and training method.
Many trucking companies offer paid CDL training or tuition reimbursement in exchange for a work commitment. Look for "company-sponsored CDL programs" to lower your CDL course cost.
CDL Career Opportunities
Diverse career paths available for CDL drivers with different endorsements.
CDL Testing Contacts
Official organizations for CDL license administration and regulations.
Search for "CDL schools near me" or "CDL training programs" to find FMCSA-approved providers in your area required for the CDL license process.
CDL Test Day Checklist
CDL Renewal Requirements
Maintaining your CDL license requires periodic renewal and medical certification updates.
Keep your CDL medical card current. Driving with an expired medical certificate can lead to the downgrade of your CDL license to a non-commercial status.
CDL Exam Questions and Answers
To find CDL schools near me, search the FMCSA Training Provider Registry. Only registered schools can provide the required ELDT training for a new CDL license.
A Non CDL Class C license typically allows you to drive vehicles under 26,001 lbs that don't require a commercial license, such as personal RVs or small delivery trucks, depending on state laws.
The total CDL license cost including permits, testing, and license fees ranges from $50 to $200. However, CDL training schools can cost between $3,000 and $8,000.
A Class A CDL allows you to drive combination vehicles with a trailer over 10,000 lbs (like semi-trucks). A Class B CDL is for single heavy vehicles (like dump trucks or buses).
Some states allow you to take the CDL permit test online, but most require you to visit a DMV office. Check with your local driver licensing agency for online options.
You generally need a CDL license for a box truck if its Gross Vehicle Weight Rating (GVWR) is 26,001 lbs or more. Non CDL box truck jobs exist for lighter vehicles.
Most CDL training programs take between 3 to 7 weeks to complete if attending full-time. Weekend or part-time courses may take longer.
A Non Domicile CDL is issued to drivers who are domiciled in a foreign country or in a state that does not issue CDLs, allowing them to operate commercial vehicles in the US.
To find CDL programs near me, look for local community colleges or private trucking schools. Ensure they are on the FMCSA's Training Provider Registry (TPR).
Many students find the Pre-Trip Inspection to be the hardest part of the CDL test because it requires memorizing many parts and verbalizing their condition.
Disclaimer: This app is not affiliated with or endorsed by any state DMV or the FMCSA and is intended for educational and practice purposes only. Official CDL requirements and regulations may vary by state – always verify current information with your local DMV or authorized testing center.