UK train driver selection uses timed aptitude tests of concentration, reaction, visual search, memory, rules, and judgement. These tests practise those task formats so assessment day is not the first time you sit this kind of work, under a clock.
Study a practice notice, then answer questions on it. Easy lets you look back. Harder versions do not.
Why it is useful
You will be given rules and asked to apply them, sometimes from memory. Holding a short procedure, then using it under a clock, is closer to the job than a quiz about railways.
Learn a cab panel, then answer questions from the rules you studied. You can hide the panel or look back while you answer.
Why it is useful
A panel is a set of rules attached to objects. You need to know which control does what, then apply it. Looking it up while you practise is not the same skill as holding it from memory.