RB211-524 Bleed Air

[Kane Toed]

maters (sic) to me because that's the question I might receive on my interview

You are VERY unlikely to receive that sort of question in a CX interview unless you are already flying the -400. You might get some pretty technical questions on your current aircraft, but of course you should be able to field those. A general knowledge of the aircraft operated by CX would be a good thing of course...