I have just recently passed the 203 with a distinction and I actually found it easier than the 202 where I only scored a credit. The 203 is 30 questions, half on health & safety and half on things like earthing, transformer calcs and other formulas and a bit of 3 Phase current/voltage.
The 205 as I understand it, is once again health & safety and buildings and structures, things like metal or pvc conduit, spacing distances, bend radius, types of saddles and general fixings. Our tutor says it is a doddle.
Can anyone tell me anything about the 204? It sounds a bit odd. To do with a flourescent luminaire and an inductor/capacitor. I don’t have much of a clue about this one.