And as part of your training, I think many would agree, you would do well to ignore posts from A320rider. He's great for a laugh, continually gets the wrond end of the stick (also gets a fair bit of it as well) and is generally WRONG!.
It's they way your brain works that matters, not what it has remembered. There are many ex-airforce people with really good science backgrounds who find the exams tough - and that's because at times the questions are somewhat vague, pointless or based on inaccurate and duff information. And this is where the duffer scores, he is not lumbered with the correct knowledge, just a method of smelling out the "right" answer.
Have fun!