I and quite a few others went through CHC selection a while ago in Aberdeen,I was not successfull but I'm not bitter before anyone asks! I would imagine you'll go through a similiar process (if it's still in place), conducted by a couple of Norwegian dudes whoses names I forget,psychometric tests in the morning,discussion of your results with one of the Norwegians and tell me aboot your farder...type questions.
Followed by another interview with a Pilot type.
My advise would be remember your been interviewed from the word go! That means those so called informal chats at morning tea and lunch,brush up on your basic PofF for the Pilot type interview and learn to understand Norwegian whilst ticking boxes with a pen in both hands!
If you get through that very well done! Then I believe you get a sim ride, but I'm sure someone else who is not bitter and twisted and sat thinking about what to have for dinner whilst tooling about in their Puma can tell you....only joking.........it's golf their thinking about!
Good Luck you'll need it!