When we did our Jetstream 31 course 'somewhere in Surrey' - we had a very switched on Jock Instructor down from Prestwick.
He was very quick to latch on to any knowledge weaknesses amongst his 'students'.
The first day our 2 senior Inspectors sat right at the front of the class but kept getting asked questions

Next day they sat right at the back - but it made no difference - the instr just went round the class anyway asking questions,he was one of those good teachers who said ''If I mention it more than once - it is probably in the exam''
I was very pleased to get the top mark to beat one of the senior inspectors who was a back stabbing tw@t !
The guy who usually looked after the Jetstream on dayshift got the bottom mark

- then again he was not very bright and we others did most of the tech work.
The intricacies of the Prop control system got the brain cell warmed up on this ex single trade 'rigger'