they can also ask "action plans" and "essays"
but they do not expect 5 pages in 30min, thats too much, my teacher said min 2 pages would be the amount you want if you want a 13-15 range and going over 3 pages is wasting effort/time
you could go upto 10 pages if you wanted, but the reason they give us so little time is so you dont regurgiate the course work and just write what is neccessery, and that'd include question requirements but alot of the time they actually set it out for you, you dont even have to remember it, the books tend to give you their own interpretation so you understand it
like for example on an extended response they asked for complete report on OH&S computing environment, now you and me could say oh yeh chairs, desks, computers, lighting, electricity etc... however, the question outlined specifically what they wanted, my point being is they always outline whats required in the response unlike alot of other subjects (ie. english)