I have to agree with the above post. I did mine about 10 years ago & I dont think much has changed since then. If you can read the question, remeber the answer, which in the books in had were in bold type you should easily pass. I didnt even bother reading the explanations in the book as so much of it was directed towards General aviation which I do not need. I had finished mine in 5 days but allowed 10 so had a bit of a holiday (company paying). If you have nearly finished your B1 you will P##s it