I have recently done it and if you are familiar with GN3 know the testing procedures and carry out regular testing it is not that hard. I would say about 60% of the questions were ones i would say you should know from memory if working in the trade. the other 40% require a bit of thought but again not too difficult.
Out of my course of 4 2 failed the multi choice exam,one hadnt worked in trade for over 10 years, the other was doing his property up! myself and another electrician both passed with 90%
The written part consisted of 3 or 4 questions and was not difficult, things such as describe the safe isolation process for a single phase board, describe where you would find selv and what to test and where quoting a reg, its all open book too. use GN3 and the example test sheets as the relevant item on the example sheet gives reg numbers!
The multi choice exam if you study isnt that hard, its more down to how City and Guilds write the questions, take your time and its not too bad.
Practical is down to common sense, they tell you what to test and just be methodical and dont rush.
Tutor said there has never been a better time to sit the 2391-52 as its open book, multi choice. Did it one day a week for several weeks, far better than these centres who cram it all in over 3 or 4 days. no time to discuss things or ask questions.
Will say though that the 2391-52 has 60 questions across both initial and periodic so better than doing each separately and getting 2 exams of 40 questions.
