hi mr. snowy
it is because the book is basic that extra study is needed. the technical component of the panel interview will comprise questions on the topics mentioned in the book, but the depth of the knowledge required to answer those questions will be deeper than what the book provides. this is to see if applicants have the passion and initiative to do their own study and research.
i have also heard that the Job Knowledge Test will have questions that are on materials not mentioned in their booklet. these questions fall into two categories, namely CX company info (such as specific numbers of each fleet) and harder technical questions based on topics mentioned in the booklet.
aviation knowledge is literally limitless and it's fair to say that you won't be able to study to much of a technical proficiency in such a limited time frame. but the good thing is, you are allowed to tell them that you don't know the answer to a question, because for cadet selections the attitude matters more than the actual knowledge you have. so don't sweat if you feel you don't know enough; if you've done your homework and looked outside their booklet, they will know.
hope that helps.
good luck, and happy studying to all my fellow Stage 2 candidates. keep going!
