its nothing to worry about, its class room based with multiple choice questions at the end.
as long as you can remember fridge/freezer temperatures(different in England and Scotland

), how long food can be out of the fridge and understand the term risk assessments, throw in a few definitions and the rest is common sense.
the pass rate is very high.
theres no practical in the intermediate level either that that was a 40hr course if I remember rightly.