Relax, Enjoy.
You sound well prepared so whats to worry about? Re the shooting test, it's only paper, you can't wound it, so enjoy showing how good you are.
Re safety test, I had to be "helped" to reach the right decision, with regard to a tricky stalk. He could not answer for me but kept labouring the question over and over until the penny dropped. What the guy wanted to hear was"un-load if you feel the situation warrants". Strangely that never naturally occured to me. I guess I've been shooting so long I just took it for granted that everyone does it as a matter of course, whether crossing a ditch, fence or climbing a high seat ladder. I just forgot to say the words!
The guys aren't out to trick you, I guess it refects on them if too many of their students fail.
Good luck,
Mark