Each exam prep has 4 exams included, 3 untimed and one timed exam. You can only submit the exam once but after the exam is finished you can review your attempt as often as you like, read the worked answers and focus on the areas needed.
There is no point in multiple attempts at the same questions as this encourages memorising questions which will NOT get you through the CASA exam.
If a student wants more attempts at the same questions, we offer Extra Access which gives 3 additional timed exam attempts using sets of questions drawn randomly from the 4 exams already covered. In the case of CPL Aerodynamics, questions are also drawn from an question bank of about 200 extra questions.