As for the API-1104 you pretty much need to be familiar with the whole book and the two appendixs in the back,apendix A and B.At the seminar our instructor told us not to worry to much about the appendexs that they probably want be but mayby one or two quiestions on them.Man was he wrong,i think they were either ten or eleven and fortently i had enough time to find the answers. But now he did say to read over them during the seminar but i thought if they were going to be only a few quistions i was not going to worry about it much,so be sure you study the whole book and by the way they upt the quistion from 45 to 60 for the API-1104 exam. ON the practicle exam you really need to read and study Part B Examination Book Of Specifications and be prepared to make some preety tight calls on welding flaws and dicon. Just make sure you pay close attention to the quistions. Some other things to hit on are welding processes,symbols , ndt , definitions and terminology. When you start the seminar they will give you some extra study material,and i also suggest to study every night during the seminar. GOOD LUCK