Make sure you are familar with WPS' and PQRs- Thats all that is in the Book of Exhibits and you will have to refer to them alot.
The Book of specs takes parts of Api 1104, asme B31.1 and Aws D1.1 so you will have to refer back to the right code to answer many of the questions. I would recommend downloading it and studying it as soon as its available online.  It definitely involves more critical thinking. The one good thing is the plastic replicas are MUCH better than what they used to use