Three minute jobby. Simple psychological questions, quite hard to fail.
Designed to paint a picture of the person applying to interviewers. Pointless if you ask me. Some of the best 'interview candidates' once recruited often have 12 months on the sick for no reason and constantly refused to do a full days work.
It's one thing to be good at recruitment events / interviews / assesments, its another thing to be able to be good at the job.