Includes twenty practice questions; scores and lists incorrect responses; provides links to explanations of correct answers. Please note: Answers to some questions may vary depending on current state law - check your OWN states' drivers' manual for specifics. [Pennsylvania Driver's Manual]
Driver's Knowledge Tests are available for a number of states as well as provinces in Canada. Try the traffic rules test, as well as the road sign questions, and get results online (with explanations of correct answers).