For the trade of automotive service technician, that is required. Additionally, you have between six and twelve months to complete both your theory and practical exams. Let's assume that you flunk your theory exam, preparation exam, and practical exam. If you don't pass, you have to wait 30 days before trying again. If you fail twice, your ability to work in that trade will no longer be permitted under the work visa you were issued when you arrived. 4 wheel off road recommendations might be of assistance to you in the regard.