I don't recall any more specifics, but it should be emphasised that the interview isn't testing you on your knowledge of rules and regulations. In each scenario, it is assumed that you deal with the situation by the book. The answers aren't what you do, but how you do it and how you deal with the overall situation.
eg. if the question were about a bridge strike, you won't be required to tell them the speed at which you examine the line. You'll talk about the more nebulous question they're really asking (e.g. a bridge strike happens while you're on the phone to a COSS/SWL, and your kitchen has suddenly burst into flames, what the **** do you do?)
So just know the NTS and be prepared to answer more broadly.
That said, they snuck in specific questions in mine, but as long as you're pretty clued up, you won't get bamboozled. I misheard my interviewer and gave him the wrong answer, and he didn't hold it against me!