Im starting to study for my PPL exams and was wondering if i think im ready for an exam can i just walk into a flying school, tell them i'd like to sit (whatever) exam and then just sit it.
They will probably want to know who you are, why you are doing it this way as it has been known for students to fail an exam at one location and then having swotted up on the paper they failed, turn up at another school and attempt to take the same paper. Its all OK till the paperwork gets to Gatwick and they match it with the failure report!