You may mark questions for review if needed. Tip: answer all questions in sequence even if you are unsure of your answer.  As is the case for the actual PE exam, your score is based on the number of correct answers with no penalty for incorrect answers. If you skip a question, the quiz program does not remind you of that.

You have to submit your answers twice. After the first submit, all questions are shown with your choices. After making any changes, scroll to the bottom and click "submit my final answers".