Why is it badly worded? It's not unfair in the least. It isn't supposed to be a realistic scenario, it's a theoretical question intended to probe your understanding of propellor dynamics. Nothing more, nothing less. Don't complicate it with superfluous stuff (guff) about governors and "it wouldn't do that".
Intruder's got it nailed and he ain't even from UK and probably completely unfamiliar with their isiosyncratic exam style.
Additionally, given the wording it's almost certainly from the fixed pitch syllabus so getting into paroxysms about governors is completely inappropriate.
Just RTFQ, answer it and move on! Its a CAA exam remember?