Unfortunately it is not possible to schedule all exams on the campus you are taught. If your exam is on a different campus you need to ensure you are familiar with the layout of the campus and leave sufficient travel time to arrive at the venue at least 15 minutes prior to the start of the exam.
Make sure to look at our 'prepare for your exams' webpages and make sure everything you need is ready in advance.
Best of luck with your exams!