For the licence we do not do an exam. It is just a piece of paper to prove that we already have company authorization for the aeroplanes we have worked on. We already have done exam each time when we make the course before we get issued authorization for the aeroplane. It is just a JAR requiremnt to give us B2 licence to make it standard across all of Europe. Some people have B1 and B2 but most avionics just get B2.