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DE CDL General Knowledge Exam Simulator 2025

Perfect for first-time and renewal CDL/CLP applicants, and those adding endorsements.

Are you considering a change in your career? Perhaps you are just getting started, and the idea of driving heavy trucks has motivated you to take the first step toward becoming a licensed commercial driver. In Delaware, you must be at least 18 to obtain a Commercial Driver’s License (CDL) and drive intrastate. To drive commercial vehicles cross-country, carry hazardous materials, or transport passengers, you must be 21 or older. Applicants must also pass a physical examination by a certified medical examiner and complete the mandatory Entry-Level Driver Training (ELDT) from a registered provider listed in the FMCSA’s Training Provider Registry (TPR). Additionally, you must pass the official CDL permit test, which is a 50-question exam. Aspiring commercial drivers who are interested in certain endorsements must also pass the associated knowledge tests. The final step in the licensing process is passing the CDL skills test, which includes a vehicle inspection, basic control skills test, and road test.

The Delaware Division of Motor Vehicles (DMV) publishes the official Delaware commercial driver license manual (Delaware CDL Handbook 2025). We recommend reading its contents at least once, as it provides essential information on the various aspects of commercial driving theory. When you’re ready, give our Delaware CDL General Knowledge Exam Simulator a try and evaluate your knowledge in an environment similar to the one you’ll encounter at the DMV office.

This intuitive tool has been recently updated for December 2025 and consists of 50 multiple-choice questions. You must score at least 80% to pass, leaving little room for error. If you make too many mistakes, the test immediately ends, and you must start a new session. You get unlimited attempts to practice as often as you wish, and with nonstop browser-based access, you can easily integrate this tool into your daily study routine. As you begin your learning phase, please avoid rushing; dedicate plenty of time to mastering this subject. With the right tools, you’ll become a professional commercial driver who can handle any challenge on Delaware’s roads.

Real exam-style pitfalls you’ll practice:
Common Traps
Distractors
Trick Wording
Double Negatives
Commercial Driver's License
Based on official DE exam questions
This test is a Premium member exclusive. You'll get

All 650 exam-like questions specific to Delaware

Interactive learning with AI personal tutor

Unique 360° Virtual Road Simulations

Get your money back if you don’t pass

Steven Litvintchouk, M.S., Chief Educational Researcher at Driving-Tests.org

Authored and fact-checked by Steven Litvintchouk, M.S.

Chief Educational Researcher, Driving‑Tests.org (ACES member)
Last verified for accuracy on
Methodology & Editorial Policy

5 min to complete
Available in EN and ES

What to expect on the actual DE permit test

50

questions

40

correct answers to pass

80%

passing score

Real Delaware drivers who passed first try

Verified student reviews • Shared with permission

Best site For anything with wheels.
Driving-tests.org has been my go to site for all of my CDL test and I have passed the first time. I have used this site for my CDL class A permit, Tanker & Hazmat DMV exams. would not study anywhere else. I also used it to get my motorcycle endorsment.
S
I was the only one that passed the CDL out of 7 people.
I was the only one that passed the CDL A air brakes, general and combination test today out of 7 people. But I also passed the tanker and Double/triples test.I got 3 wrong. I credit this program to my success. I focused on the tests in the program. I loved the ability to flag 1 that I got right and could be grilled on it again plus having the ones I failed be put aside to do till I got then correct.
JER
A much better way to learn.
Update: Took the exam. Passed the 1st time. 68 of 70 questions correct. This test prep works. I found absorbing the information in the CDL manual difficult. I could memorize the information but I wasn't learning how to apply it. It was like drinking from a fire hose. This format separates the signal from the noise. Now, I much better understand how to use and apply the information for both the CLP test and also as a professional driver. You still have to read the manual. This site helps you to learn what you're reading.
MB
Easy to pass hazmat tests.
Good way to learn and retain hazmat laws and safety I had retired 2 years took this training and quickly passed with 100%.
G
I am so thankful to have come across….
I am so thankful to have come across this website! I took my CDL Test, Class B, Hazmat, Airbrake, and Passenger endorsements, and passed easily thanks to the help of this site! I highly recommend using it! It is and the staff (Marina) is quite helpful! Thank you so much!
V
This site is awesome.
I passed my permit test today, flawlessly thanks to this site. I took my time and went through all of the many practice tests that they had and just like that, I have my cdl permit in hand. Thank you so much for this site.
JC
A must to save time and money!
Studied for about 20 hours on my own for about 4 days for the class A CDL permit test. I failed General Knowledge and Air brakes on Monday. Was pretty flustered since I studied for a week. Bought this program on Monday night and took the test again Wednesday morning and passed easily. Was surprised how many of the same worded questions that are on driving-tests.org were on the official dmv test. Looking forward to using this for my endorsements. With Covid 19 and the long wait times. This course is a must if you can't afford or have the time to waste going to the dmv multiple days to retake tests.
TL

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