Iowa DOT Traffic Lights & Signals Practice Test (IA) 2024

Still don't know what those yellow arrows on the traffic light are for? Our Iowa traffic signals quiz will put your mind at ease!

  • 20 Questions
  • 80% Passing Score
  • 4 Mistakes Allowed
100% of students found this test helpful!
Rated 5.0 out of 5 by 3 drivers

Iowa Permit Test Facts

  • Questions: 35
  • Correct answers to pass: 28
  • Passing score: 80%
  • Test locations: Department of Transportation (DOT) Offices
  • Test languages: English, Spanish, Hindi, Vietnamese
  • Based upon: Iowa driver's permit study guide
Improve your chances of passing the test by reading the official Iowa drivers manual Drivers Manual

Learning about Iowa traffic lights is just as important as studing road rules and road signs. When you are ready to start working with the traffic signals chapter of the driver’s manual, use this free DMV permit practice test for Iowa learners to guide you. Unlike most online permit practice tests, this Iowa traffic signal quiz only presents questions relating to traffic lights. We offer this quiz entirely free of charge and allow all first-time drivers to use it as many times as it takes to achieve a satisfactory score. You need to be prepared to answer questions on anything discussed in the traffic light section of the drivers manual when sitting the Iowa DOT test. This handy little DOT practice test for Iowa residents will make sure you are up to the challenge!

As intersection lights, lane control lights, railroad crossing lights and all other traffic signals operate the same way from one side of the state to the other, our traffic signals test is suitable for all beginner drivers from Des Moines, Davenport, Cedar Rapids and every other Iowa district. The DOT permit practice test for Iowa applicants includes 20 multiple-choice and ‘true or false’ signal test questions, just like those you will be presented with at the DMV exam office. Our quiz uses the same 80% pass requirement as the real general knowledge DOT test in Iowa, which means you will need to answer at least 16 questions correctly. While answering questions, you will have the option to ask for a clue about the traffic light being addressed using the ‘hint’ button, or to eliminate a selection of the incorrect DMV written test answers using the ‘50/50’ button. These study aids will not be available to help you during the real DOT permit test, but we have included them here to accelerate your learning.

Iowa traffic lights test questions will represent a small percentage of the questions on the overall 2024 DMV written test. Most of the material on the exam will cover rules of the road and road signs, which are also covered in the Iowa driver’s permit study guide. When you need some self-assessment questions to address these topics, you will find a selection of ideal Iowa DOT practice tests right here on We recommend starting with our introductory rules of the road and road signs Iowa permit practice test, then moving on to our 25-question DMV cheat sheets as your confidence with the study material improves.

During the Iowa DOT permit test and while operating a vehicle on public roads, new drivers must be able to respond appropriately to traffic lights given different roadway situations. For example, a green light at an intersection only means you should go if all other opposing streams of traffic have cleared the intersection. The driver’s manual discusses these issues in far more detail than can be provided with our Iowa drivers permit practice test. For this reason, new permit applicants must read the entire Iowa traffic signals test section of the study guide in addition to using our signal test quiz. Otherwise, you will be unprepared for any complex DMV test questions that appear during the assessment. To keep yourself motivated and make the process of learning about traffic lights in Iowa more enjoyable, we recommend reading the drivers manual section by section while taking frequent breaks to answer questions with this quiz. The Iowa DOT practice test signals quiz will never become boring, as it generates different 20-question tests each time you re-start it!