Study for the TX DMV Written Driving Test.. Study with flashcards and multiple-choice questions. With over 500 questions. Practice the signs and driving rules. Updated for 2024. Get ready for your driving test!

Each practice test/flash card set has 50 randomly selected questions from a bank of over 500. You'll get a new set of questions each time!

Practice this question and more.


What is the maximum speed limit on an interstate highway for passenger vehicles?

  1. 50 mph

  2. 65 mph

  3. 80 mph

  4. 55 mph

The correct answer is: 80 mph

The other options may seem surprisingly low or specific, as the maximum speed limit is generally above 55 mph and typically rounded to the nearest 5 or 10 mph. A and D seem low as they are common speed limits on residential roads or lower speed highways. B may seem plausible as many highways have a speed limit of 65 mph, but this is not the maximum, and it is important to be aware of the specific speed limit on interstate highways.