Iowa Driving Theory Test Practice
Practice questions covering Iowa-specific facts as well as general driving-theory knowledge, plus the official Iowa Department of Transportation (Iowa DOT) handbook where relevant. The real Iowa DOT knowledge exam has 35 questions, and you'll need 80% correct to pass.
Iowa lets a parent waive the passenger restriction entirely when their teen's intermediate license is issued, and it's one of only three states with no motorcycle helmet law for adult riders at all.