I applied through a recruiter. The process took 4 weeks. I interviewed at GE (Truro, England) in Oct 2012
Interview
Questions and answers on previous experience with response being allocated a number depending on the quality of the reply.
There wasn't any form of test and did not mention exams at end of training or annual exams
Interview with 2 people 1 asking the questions and the 2nd making notes
Interview very informal considering the work ethics applied following successful application and training