Contact CDL Exam

Contact CDL Exam Support

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About: CDL Exam contains more than 600 questions to help you pass the California
Commercial Driver License exam. Questions are classified into 8 categories: -
Commercial Driver License Knowledge Test - Passenger Transport Endorsement
Test - Vehicle Code and Safety Driving Practices - Hazardous Materials - Air
Brakes - Combination Vehicles - Doubles and Triples Vehicles - Tank Vehicles At
the end of each test, a summary is given hig.



How to Contact CDL Exam Customer Service/Support

CDL Exam Contact Information

Listed below are our top recommendations on how to get in contact with CDL Exam. We make eduacted guesses on the direct pages on their website to visit to get help with issues/problems like using their site/app, billings, pricing, usage, integrations and other issues. You can try any of the methods below to contact CDL Exam. Discover which options are the fastest to get your customer service issues resolved..
The following contact options are available: Pricing Information, Support, General Help, and Press Information/New Coverage (to guage reputation).



43.24% Contact Match

Developer: Quantresearch

E-Mail: [email protected]

Website: Visit CDL Exam Website

62.5% Contact Match

Developer: Jeffrey Diaz

E-Mail: [email protected]

Website: Visit Jeffrey Diaz Website








Reported Issues: 3 Comments

4.6 out of 5

By JamesMon128


Great application

Overall your app is great. However I did notice that two of your questions are wrong. Both of these questions are located in general knowledge. For the first question, which of these may be a sign of tire failure? The answer is gently thumping. If you want to say fish tailing, you have to be specifically referring to the rear tires. Because failure of the rear tire will cause the vehicle to slide back & forth or fishtail. The second question said Stab breaking:? Stab breaking is Applying the breaks then releasing them when the wheels lock up. But before you apply the breaks again you wait for the wheels to begin rolling forward. You repeat this whole process until you stop. However your correct answer mentioned abs breaks which I have seen no mention of. James M.



By EJP715


Good but use caution...

Good app to use however it gave me a wrong answer for the following question as opposed to Crist CDL which gave a different answer (which is the right answer): Driving a truck w/double or triple trailers requires a driver to: a) Use special care in bad weather b) Allow more following distance c) Do both A & B d) None of the above The answer that is right on this site gives D) None of the above; which is wrong. Proceed with caution!



By JamesMon128


Great application

Overall your app is great. However I did notice that two of your questions are wrong. Both of these questions are located in general knowledge. For the first question, which of these may be a sign of tire failure? The answer is gently thumping. If you want to say fish tailing, you have to be specifically referring to the rear tires. Because failure of the rear tire will cause the vehicle to slide back & forth or fishtail. The second question said Stab breaking:? Stab breaking is Applying the breaks then releasing them when the wheels lock up. But before you apply the breaks again you wait for the wheels to begin rolling forward. You repeat this whole process until you stop. However your correct answer mentioned abs breaks which I have seen no mention of. James M.




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  1. Pulling issues faced by users like you is a good way to draw attention of CDL Exam to your problem using the strength of crowds. We have over 1,000,000 users and companies will listen to us.
  2. We have developed a system that will try to get in touch with a company once an issue is reported and with lots of issues reported, companies will definitely listen.
  3. Importantly, customers can learn from other customers in case the issue is a common problem that has been solved before.
  4. If you are a CDL Exam customer and are running into a problem, Justuseapp might not be the fastest and most effective way for you to solve the problem but at least you can warn others off using CDL Exam.


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