JLMF
There's not just a single way to answer these questions... What I know is that a clear and SHORT answer is actually the best option! Give'em the possibility to ask you questions! Remember that also the tech questions are aimed to see and understand your personality! It's mainly about that during the interview!
Pilotnik
During the SIM session you're not expected to know any check list or procedure of the 737, even if you flew it at your mcc. They want to see your crm skills! Practically it means that during the flight you'll JUST CALL the appropriate check list (for example after flap retraction you'll call: after take off check list) and the assessor behind you will shout: COMPLETE! And that's it!
In case of an engine failure you'll just have to do the memory items that you learned during your mcc, regardless if you either flew a turbo prop or a 737! They won't ask you anything more than what you already know!
Anyway if you never flew anything colse to a 737, I suggest that you take a couple of hrs on a fixed base 737 SIM, just to feel a bit comfortable when you'll be there! There's one very good near gatwick apt if you are interested!
Good luck to everyone!!