Who writes this nonsense?
Is it possible, Paco, that you wrote a question along these lines, submitted it, then it went through the full proof (sarcasm) checking process and was changed in some way, which then brought doubt in to the answer?
There gets a point where for instance the fire question needs to be released as it was given to the student, confirmed by the student that it was in deed given that way, and if it is a bad question, the writer, the checkers and the authority should be held accountable.
I'm sure a great many authority bods think they are making the skies safer with these moves, but I bet if we ran any of them who are still flying through the same test they would fall flat on their face. Does that mean they should surrender their licence because they are not safe?
It is farcical to learn these regulations when they could change the day after a student takes an exams.
Better that the student be given a set of questions and the regulation and told to go find the answer. And require him to get 100%.