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 an