There will be a 3% credit card processing fee Come with your confirmation number or Washington ID. The knowledge exam consists of 40 multiple-choice questions about traffic safety laws. Applicants must answer at least 32 questions correctly to pass the exam. The fee for the knowledge exam is $30 for two attempts. Lesson for knowledge test Training is $100.00. Knowledge Test Walk in days are on Thursday from 2:00 pm- to 4:00 pm Sunday 8:00 am-10:00 am