Fifty questions in 15 minutes, similar in format to the CCAT: vocabulary and analogies, word problems, number series, quick tables, syllogisms, seating puzzles and figure series, all mixed together. No calculator, and once you move on you can't go back.
That's 18 seconds a question, and very few people finish. Scores come from right answers only, so a quick guess on a slow question costs nothing. The skill this mock tests is triage: answer the fast ones, guess and move on from the slow ones.