This app is specially designed for preparing Washington driver license knowledge test. "DMVCool" is a series of free driver license practice test tools that help people to prepare their driver license test. In Washington, the knowledge test is a multiple-choice test with 40 questions, and you must correctly answer 32 of them to pass the test. By using this app, you can practice with hundreds of questions including traffic signs and driving knowledge. Main features: 1. Learn traffic signs and practice with questions 2. Learn driving knowledge and practice with questions 3. Unlimited sign quiz, knowledge quiz and mock test 4. Search signs and questions 5. Analysis of wrong answered questions and find your weak spots Good luck to your driver license test!